Skip to content

GitLab

Commit e20cc4f2 authored by Mark Friedrichs's avatar Mark Friedrichs
Browse files

Initial AmoebaReferenceMultipoleForce

parent 6d91d79d
Show whitespace changes
Inline Side-by-side
Showing with 2398 additions and 205 deletions
plugins/amoeba/platforms/cuda/tests/AmoebaTinkerParameterFile.cpp
View file @ e20cc4f2
...@@ -4733,7 +4733,7 @@ void testUsingAmoebaTinkerParameterFile( const std::string& amoebaTinkerParamete ...@@ -4733,7 +4733,7 @@ void testUsingAmoebaTinkerParameterFile( const std::string& amoebaTinkerParamete
} }
} }
if( gkIsActive == false ){ if( 0 && gkIsActive == false ){
isPresent = forceMap.find( AMOEBA_MULTIPOLE_FORCE ); isPresent = forceMap.find( AMOEBA_MULTIPOLE_FORCE );
if( isPresent != forceMap.end() && isPresent->second != 0 ){ if( isPresent != forceMap.end() && isPresent->second != 0 ){
//checkIntermediateMultipoleQuantities( context, supplementary, useOpenMMUnits, log ); //checkIntermediateMultipoleQuantities( context, supplementary, useOpenMMUnits, log );
......
plugins/amoeba/platforms/reference/src/AmoebaReferenceKernelFactory.cpp
View file @ e20cc4f2
...@@ -47,8 +47,8 @@ extern "C" void OPENMM_EXPORT registerKernelFactories() { ...@@ -47,8 +47,8 @@ extern "C" void OPENMM_EXPORT registerKernelFactories() {
platform.registerKernelFactory(CalcAmoebaOutOfPlaneBendForceKernel::Name(), factory); platform.registerKernelFactory(CalcAmoebaOutOfPlaneBendForceKernel::Name(), factory);
platform.registerKernelFactory(CalcAmoebaTorsionTorsionForceKernel::Name(), factory); platform.registerKernelFactory(CalcAmoebaTorsionTorsionForceKernel::Name(), factory);
platform.registerKernelFactory(CalcAmoebaVdwForceKernel::Name(), factory); platform.registerKernelFactory(CalcAmoebaVdwForceKernel::Name(), factory);
/*
platform.registerKernelFactory(CalcAmoebaMultipoleForceKernel::Name(), factory); platform.registerKernelFactory(CalcAmoebaMultipoleForceKernel::Name(), factory);
/*
platform.registerKernelFactory(CalcAmoebaGeneralizedKirkwoodForceKernel::Name(), factory); platform.registerKernelFactory(CalcAmoebaGeneralizedKirkwoodForceKernel::Name(), factory);
*/ */
platform.registerKernelFactory(CalcAmoebaWcaDispersionForceKernel::Name(), factory); platform.registerKernelFactory(CalcAmoebaWcaDispersionForceKernel::Name(), factory);
...@@ -87,11 +87,11 @@ KernelImpl* AmoebaReferenceKernelFactory::createKernelImpl(std::string name, con ...@@ -87,11 +87,11 @@ KernelImpl* AmoebaReferenceKernelFactory::createKernelImpl(std::string name, con
if (name == CalcAmoebaVdwForceKernel::Name()) if (name == CalcAmoebaVdwForceKernel::Name())
return new ReferenceCalcAmoebaVdwForceKernel(name, platform, context.getSystem()); return new ReferenceCalcAmoebaVdwForceKernel(name, platform, context.getSystem());
/*
if (name == CalcAmoebaMultipoleForceKernel::Name()) if (name == CalcAmoebaMultipoleForceKernel::Name())
return new ReferenceCalcAmoebaMultipoleForceKernel(name, platform, context.getSystem()); return new ReferenceCalcAmoebaMultipoleForceKernel(name, platform, context.getSystem());
/*
if (name == CalcAmoebaGeneralizedKirkwoodForceKernel::Name()) if (name == CalcAmoebaGeneralizedKirkwoodForceKernel::Name())
return new ReferenceCalcAmoebaGeneralizedKirkwoodForceKernel(name, platform, context.getSystem()); return new ReferenceCalcAmoebaGeneralizedKirkwoodForceKernel(name, platform, context.getSystem());
*/ */
......
plugins/amoeba/platforms/reference/src/AmoebaReferenceKernels.cpp
View file @ e20cc4f2
...@@ -33,12 +33,14 @@ ...@@ -33,12 +33,14 @@
#include "AmoebaReferenceStretchBendForce.h" #include "AmoebaReferenceStretchBendForce.h"
#include "AmoebaReferenceOutOfPlaneBendForce.h" #include "AmoebaReferenceOutOfPlaneBendForce.h"
#include "AmoebaReferenceTorsionTorsionForce.h" #include "AmoebaReferenceTorsionTorsionForce.h"
#include "AmoebaReferenceMultipoleForce.h"
#include "AmoebaReferenceVdwForce.h" #include "AmoebaReferenceVdwForce.h"
#include "AmoebaReferenceWcaDispersionForce.h" #include "AmoebaReferenceWcaDispersionForce.h"
#include "internal/AmoebaWcaDispersionForceImpl.h" #include "internal/AmoebaWcaDispersionForceImpl.h"
#include "ReferencePlatform.h" #include "ReferencePlatform.h"
#include "openmm/internal/ContextImpl.h" #include "openmm/internal/ContextImpl.h"
//#include "internal/AmoebaMultipoleForceImpl.h" #include "AmoebaMultipoleForce.h"
#include "internal/AmoebaMultipoleForceImpl.h"
#include <cmath> #include <cmath>
#ifdef _MSC_VER #ifdef _MSC_VER
...@@ -399,178 +401,105 @@ double ReferenceCalcAmoebaTorsionTorsionForceKernel::execute(ContextImpl& contex ...@@ -399,178 +401,105 @@ double ReferenceCalcAmoebaTorsionTorsionForceKernel::execute(ContextImpl& contex
return static_cast<double>(energy); return static_cast<double>(energy);
} }
///* -------------------------------------------------------------------------- * /* -------------------------------------------------------------------------- *
// * AmoebaMultipole * * AmoebaMultipole *
// * -------------------------------------------------------------------------- */ * -------------------------------------------------------------------------- */
//
//static void computeAmoebaMultipoleForce( AmoebaCudaData& data ) { ReferenceCalcAmoebaMultipoleForceKernel::ReferenceCalcAmoebaMultipoleForceKernel(std::string name, const Platform& platform, System& system) :
// CalcAmoebaMultipoleForceKernel(name, platform), system(system) {
// amoebaGpuContext gpu = data.getAmoebaGpu(); }
// data.initializeGpu();
// ReferenceCalcAmoebaMultipoleForceKernel::~ReferenceCalcAmoebaMultipoleForceKernel() {
// if( 0 && data.getLog() ){ }
// (void) fprintf( data.getLog(), "computeAmoebaMultipoleForce\n" );
// (void) fflush( data.getLog()); void ReferenceCalcAmoebaMultipoleForceKernel::initialize(const System& system, const AmoebaMultipoleForce& force) {
// }
// numMultipoles = force.getNumMultipoles();
// // calculate Born radii
// charges.resize(numMultipoles);
// if( data.getHasAmoebaGeneralizedKirkwood() ){ dipoles.resize(3*numMultipoles);
// kCalculateObcGbsaBornSum(gpu->gpuContext); quadrupoles.resize(9*numMultipoles);
// kReduceObcGbsaBornSum(gpu->gpuContext); tholes.resize(numMultipoles);
// } dampingFactors.resize(numMultipoles);
// polarity.resize(numMultipoles);
// // multipoles axisTypes.resize(numMultipoles);
// multipoleAtomId1s.resize(numMultipoles);
// kCalculateAmoebaMultipoleForces(gpu, data.getHasAmoebaGeneralizedKirkwood() ); multipoleAtomId2s.resize(numMultipoles);
// multipoleAtomCovalentInfo.resize(numMultipoles);
////kClearForces(gpu->gpuContext);
////kClearEnergy(gpu->gpuContext); int dipoleIndex = 0;
////(void) fprintf( data.getLog(), "computeAmoebaMultipoleForce clearing forces/energy after kCalculateAmoebaMultipoleForces()\n" ); int quadrupoleIndex = 0;
// int maxCovalentRange = 0;
// // GK double totalCharge = 0.0;
// for( int ii = 0; ii < numMultipoles; ii++ ){
// if( data.getHasAmoebaGeneralizedKirkwood() ){
// kCalculateAmoebaKirkwood(gpu); // multipoles
// }
// int axisType, multipoleAtomId1, multipoleAtomId2;
// if( 0 && data.getLog() ){ double charge, tholeD, dampingFactorD, polarityD;
// (void) fprintf( data.getLog(), "completed computeAmoebaMultipoleForce\n" ); std::vector<double> dipolesD;
// (void) fflush( data.getLog()); std::vector<double> quadrupolesD;
// } force.getMultipoleParameters(ii, charge, dipolesD, quadrupolesD, axisType, multipoleAtomId1, multipoleAtomId2,
//} tholeD, dampingFactorD, polarityD );
//
//CudaCalcAmoebaMultipoleForceKernel::CudaCalcAmoebaMultipoleForceKernel(std::string name, const Platform& platform, AmoebaCudaData& data, System& system) : totalCharge += charge;
// CalcAmoebaMultipoleForceKernel(name, platform), system(system) { axisTypes[ii] = axisType;
// data.incrementKernelCount(); multipoleAtomId1s[ii] = multipoleAtomId1;
//} multipoleAtomId2s[ii] = multipoleAtomId2;
//
//CudaCalcAmoebaMultipoleForceKernel::~CudaCalcAmoebaMultipoleForceKernel() { charges[ii] = static_cast<RealOpenMM>(charge);
// data.decrementKernelCount(); tholes[ii] = static_cast<RealOpenMM>(tholeD);
//} dampingFactors[ii] = static_cast<RealOpenMM>(dampingFactorD);
// polarity[ii] = static_cast<RealOpenMM>(polarityD);
//void CudaCalcAmoebaMultipoleForceKernel::initialize(const System& system, const AmoebaMultipoleForce& force) {
// dipoles[dipoleIndex++] = static_cast<RealOpenMM>(dipolesD[0]);
// numMultipoles = force.getNumMultipoles(); dipoles[dipoleIndex++] = static_cast<RealOpenMM>(dipolesD[1]);
// dipoles[dipoleIndex++] = static_cast<RealOpenMM>(dipolesD[2]);
// data.setHasAmoebaMultipole( true );
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[0]);
// std::vector<RealOpenMM> charges(numMultipoles); quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[1]);
// std::vector<RealOpenMM> dipoles(3*numMultipoles); quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[2]);
// std::vector<RealOpenMM> quadrupoles(9*numMultipoles); quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[3]);
// std::vector<RealOpenMM> tholes(numMultipoles); quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[4]);
// std::vector<RealOpenMM> dampingFactors(numMultipoles); quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[5]);
// std::vector<RealOpenMM> polarity(numMultipoles); quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[6]);
// std::vector<int> axisTypes(numMultipoles); quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[7]);
// std::vector<int> multipoleAtomId1s(numMultipoles); quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[8]);
// std::vector<int> multipoleAtomId2s(numMultipoles);
// std::vector< std::vector< std::vector<int> > > multipoleAtomCovalentInfo(numMultipoles); // covalent info
// std::vector<int> minCovalentIndices(numMultipoles);
// std::vector<int> minCovalentPolarizationIndices(numMultipoles); std::vector< std::vector<int> > covalentLists;
// force.getCovalentMaps(ii, covalentLists );
// RealOpenMM scalingDistanceCutoff = static_cast<RealOpenMM>(force.getScalingDistanceCutoff()); multipoleAtomCovalentInfo[ii] = covalentLists;
//
// std::vector<AmoebaMultipoleForce::CovalentType> covalentList; }
// covalentList.push_back( AmoebaMultipoleForce::Covalent12 );
// covalentList.push_back( AmoebaMultipoleForce::Covalent13 ); mutualInducedMaxIterations = force.getMutualInducedMaxIterations();
// covalentList.push_back( AmoebaMultipoleForce::Covalent14 ); mutualInducedTargetEpsilon = force.getMutualInducedTargetEpsilon();
// covalentList.push_back( AmoebaMultipoleForce::Covalent15 );
// nonbondedMethod = static_cast<int>(force.getNonbondedMethod());
// std::vector<AmoebaMultipoleForce::CovalentType> polarizationCovalentList; if( nonbondedMethod != 0 && nonbondedMethod != 1 ){
// polarizationCovalentList.push_back( AmoebaMultipoleForce::PolarizationCovalent11 ); throw OpenMMException("AmoebaMultipoleForce nonbonded method not recognized.\n");
// polarizationCovalentList.push_back( AmoebaMultipoleForce::PolarizationCovalent12 ); }
// polarizationCovalentList.push_back( AmoebaMultipoleForce::PolarizationCovalent13 ); }
// polarizationCovalentList.push_back( AmoebaMultipoleForce::PolarizationCovalent14 );
// double ReferenceCalcAmoebaMultipoleForceKernel::execute(ContextImpl& context, bool includeForces, bool includeEnergy) {
// std::vector<int> covalentDegree; RealOpenMM** posData = extractPositions(context);
// AmoebaMultipoleForceImpl::getCovalentDegree( force, covalentDegree ); RealOpenMM** forceData = extractForces(context);
// int dipoleIndex = 0;
// int quadrupoleIndex = 0; AmoebaReferenceMultipoleForce amoebaReferenceMultipoleForce( AmoebaReferenceMultipoleForce::NoCutoff );
// int maxCovalentRange = 0; amoebaReferenceMultipoleForce.setMutualInducedDipoleTargetEpsilon( mutualInducedTargetEpsilon );
// double totalCharge = 0.0; amoebaReferenceMultipoleForce.setMaximumMutualInducedDipoleIterations( mutualInducedMaxIterations );
// for (int i = 0; i < numMultipoles; i++) {
// RealOpenMM energy = amoebaReferenceMultipoleForce.calculateForceAndEnergy( numMultipoles, posData,
// // multipoles charges, dipoles, quadrupoles, tholes,
// dampingFactors, polarity, axisTypes,
// int axisType, multipoleAtomId1, multipoleAtomId2; multipoleAtomId1s, multipoleAtomId2s,
// double charge, tholeD, dampingFactorD, polarityD; multipoleAtomCovalentInfo, forceData);
// std::vector<double> dipolesD;
// std::vector<double> quadrupolesD; return static_cast<double>(energy);
// force.getMultipoleParameters(i, charge, dipolesD, quadrupolesD, axisType, multipoleAtomId1, multipoleAtomId2, }
// tholeD, dampingFactorD, polarityD );
//
// totalCharge += charge;
// axisTypes[i] = axisType;
// multipoleAtomId1s[i] = multipoleAtomId1;
// multipoleAtomId2s[i] = multipoleAtomId2;
//
// charges[i] = static_cast<RealOpenMM>(charge);
// tholes[i] = static_cast<RealOpenMM>(tholeD);
// dampingFactors[i] = static_cast<RealOpenMM>(dampingFactorD);
// polarity[i] = static_cast<RealOpenMM>(polarityD);
//
// dipoles[dipoleIndex++] = static_cast<RealOpenMM>(dipolesD[0]);
// dipoles[dipoleIndex++] = static_cast<RealOpenMM>(dipolesD[1]);
// dipoles[dipoleIndex++] = static_cast<RealOpenMM>(dipolesD[2]);
//
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[0]);
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[1]);
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[2]);
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[3]);
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[4]);
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[5]);
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[6]);
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[7]);
// quadrupoles[quadrupoleIndex++] = static_cast<RealOpenMM>(quadrupolesD[8]);
//
// // covalent info
//
// std::vector< std::vector<int> > covalentLists;
// force.getCovalentMaps(i, covalentLists );
// multipoleAtomCovalentInfo[i] = covalentLists;
//
// int minCovalentIndex, maxCovalentIndex;
// AmoebaMultipoleForceImpl::getCovalentRange( force, i, covalentList, &minCovalentIndex, &maxCovalentIndex );
// minCovalentIndices[i] = minCovalentIndex;
// if( maxCovalentRange < (maxCovalentIndex - minCovalentIndex) ){
// maxCovalentRange = maxCovalentIndex - minCovalentIndex;
// }
//
// AmoebaMultipoleForceImpl::getCovalentRange( force, i, polarizationCovalentList, &minCovalentIndex, &maxCovalentIndex );
// minCovalentPolarizationIndices[i] = minCovalentIndex;
// if( maxCovalentRange < (maxCovalentIndex - minCovalentIndex) ){
// maxCovalentRange = maxCovalentIndex - minCovalentIndex;
// }
// }
//
// int iterativeMethod = static_cast<int>(force.getMutualInducedIterationMethod());
// if( iterativeMethod != 0 ){
// throw OpenMMException("Iterative method for mutual induced dipoles not recognized.\n");
// }
//
// int nonbondedMethod = static_cast<int>(force.getNonbondedMethod());
// if( nonbondedMethod != 0 && nonbondedMethod != 1 ){
// throw OpenMMException("AmoebaMultipoleForce nonbonded method not recognized.\n");
// }
//
// gpuSetAmoebaMultipoleParameters(data.getAmoebaGpu(), charges, dipoles, quadrupoles, axisTypes, multipoleAtomId1s, multipoleAtomId2s,
// tholes, scalingDistanceCutoff, dampingFactors, polarity,
// multipoleAtomCovalentInfo, covalentDegree, minCovalentIndices, minCovalentPolarizationIndices, (maxCovalentRange+2),
// static_cast<int>(force.getMutualInducedIterationMethod()),
// force.getMutualInducedMaxIterations(),
// static_cast<RealOpenMM>( force.getMutualInducedTargetEpsilon()),
// nonbondedMethod,
// static_cast<RealOpenMM>( force.getCutoffDistance()),
// static_cast<RealOpenMM>( force.getAEwald()),
// static_cast<RealOpenMM>( force.getElectricConstant()) );
//
//}
//
//double ReferenceCalcAmoebaMultipoleForceKernel::execute(ContextImpl& context, bool includeForces, bool includeEnergy) {
// computeAmoebaMultipoleForce( data );
// return 0.0;
//}
//
///* -------------------------------------------------------------------------- * ///* -------------------------------------------------------------------------- *
// * AmoebaGeneralizedKirkwood * // * AmoebaGeneralizedKirkwood *
// * -------------------------------------------------------------------------- */ // * -------------------------------------------------------------------------- */
......
plugins/amoeba/platforms/reference/src/AmoebaReferenceKernels.h
View file @ e20cc4f2
...@@ -325,34 +325,50 @@ private: ...@@ -325,34 +325,50 @@ private:
System& system; System& system;
}; };
// /** /**
// * This kernel is invoked by AmoebaMultipoleForce to calculate the forces acting on the system and the energy of the system. * This kernel is invoked by AmoebaMultipoleForce to calculate the forces acting on the system and the energy of the system.
// */ */
// class ReferenceCalcAmoebaMultipoleForceKernel : public CalcAmoebaMultipoleForceKernel { class ReferenceCalcAmoebaMultipoleForceKernel : public CalcAmoebaMultipoleForceKernel {
// public: public:
// ReferenceCalcAmoebaMultipoleForceKernel(std::string name, const Platform& platform, System& system); ReferenceCalcAmoebaMultipoleForceKernel(std::string name, const Platform& platform, System& system);
// ~ReferenceCalcAmoebaMultipoleForceKernel(); ~ReferenceCalcAmoebaMultipoleForceKernel();
// /** /**
// * Initialize the kernel. * Initialize the kernel.
// * *
// * @param system the System this kernel will be applied to * @param system the System this kernel will be applied to
// * @param force the AmoebaMultipoleForce this kernel will be used for * @param force the AmoebaMultipoleForce this kernel will be used for
// */ */
// void initialize(const System& system, const AmoebaMultipoleForce& force); void initialize(const System& system, const AmoebaMultipoleForce& force);
// /** /**
// * Execute the kernel to calculate the forces and/or energy. * Execute the kernel to calculate the forces and/or energy.
// * *
// * @param context the context in which to execute this kernel * @param context the context in which to execute this kernel
// * @param includeForces true if forces should be calculated * @param includeForces true if forces should be calculated
// * @param includeEnergy true if the energy should be calculated * @param includeEnergy true if the energy should be calculated
// * @return the potential energy due to the force * @return the potential energy due to the force
// */ */
// double execute(ContextImpl& context, bool includeForces, bool includeEnergy); double execute(ContextImpl& context, bool includeForces, bool includeEnergy);
// private: private:
// int numMultipoles; int numMultipoles;
// System& system; std::vector<RealOpenMM> charges;
// }; std::vector<RealOpenMM> dipoles;
// std::vector<RealOpenMM> quadrupoles;
std::vector<RealOpenMM> tholes;
std::vector<RealOpenMM> dampingFactors;
std::vector<RealOpenMM> polarity;
std::vector<int> axisTypes;
std::vector<int> multipoleAtomId1s;
std::vector<int> multipoleAtomId2s;
std::vector< std::vector< std::vector<int> > > multipoleAtomCovalentInfo;
//int iterativeMethod;
int nonbondedMethod;
int mutualInducedMaxIterations;
RealOpenMM mutualInducedTargetEpsilon;
System& system;
};
// /** // /**
// * This kernel is invoked by AmoebaMultipoleForce to calculate the forces acting on the system and the energy of the system. // * This kernel is invoked by AmoebaMultipoleForce to calculate the forces acting on the system and the energy of the system.
// */ // */
......
plugins/amoeba/platforms/reference/src/SimTKReference/AmoebaReferenceForce.cpp
View file @ e20cc4f2
...@@ -74,6 +74,29 @@ RealOpenMM AmoebaReferenceForce::getNormSquared3( const std::vector<RealOpenMM>& ...@@ -74,6 +74,29 @@ RealOpenMM AmoebaReferenceForce::getNormSquared3( const std::vector<RealOpenMM>&
return ( inputVector[0]*inputVector[0] + inputVector[1]*inputVector[1] + inputVector[2]*inputVector[2] ); return ( inputVector[0]*inputVector[0] + inputVector[1]*inputVector[1] + inputVector[2]*inputVector[2] );
} }
/**---------------------------------------------------------------------------------------
Calculate norm squared of 3d vector
@param inputVector vector whose norm squared is to be computed
@return norm squared
--------------------------------------------------------------------------------------- */
RealOpenMM AmoebaReferenceForce::getNormSquared3( const RealOpenMM* inputVector ){
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceForce::getNorm3";
// ---------------------------------------------------------------------------------------
// get 3 norm
return ( inputVector[0]*inputVector[0] + inputVector[1]*inputVector[1] + inputVector[2]*inputVector[2] );
}
/**--------------------------------------------------------------------------------------- /**---------------------------------------------------------------------------------------
Calculate norm of 3d vector Calculate norm of 3d vector
...@@ -97,6 +120,36 @@ RealOpenMM AmoebaReferenceForce::getNorm3( const std::vector<RealOpenMM>& inputV ...@@ -97,6 +120,36 @@ RealOpenMM AmoebaReferenceForce::getNorm3( const std::vector<RealOpenMM>& inputV
return SQRT( inputVector[0]*inputVector[0] + inputVector[1]*inputVector[1] + inputVector[2]*inputVector[2] ); return SQRT( inputVector[0]*inputVector[0] + inputVector[1]*inputVector[1] + inputVector[2]*inputVector[2] );
} }
RealOpenMM AmoebaReferenceForce::getNorm3( const RealOpenMM* inputVector ){
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceForce::getNorm3";
// ---------------------------------------------------------------------------------------
// get 3 norm
return SQRT( inputVector[0]*inputVector[0] + inputVector[1]*inputVector[1] + inputVector[2]*inputVector[2] );
}
void AmoebaReferenceForce::normalizeVector3( RealOpenMM* inputVector ){
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceForce::normalizeVector3";
// ---------------------------------------------------------------------------------------
RealOpenMM norm = SQRT( inputVector[0]*inputVector[0] + inputVector[1]*inputVector[1] + inputVector[2]*inputVector[2] );
if( norm > 0.0 ){
norm = 1.0/norm;
inputVector[0] *= norm;
inputVector[1] *= norm;
inputVector[2] *= norm;
}
}
/**--------------------------------------------------------------------------------------- /**---------------------------------------------------------------------------------------
Calculate dot product of 3d vectors Calculate dot product of 3d vectors
...@@ -121,6 +174,55 @@ RealOpenMM AmoebaReferenceForce::getDotProduct3( const std::vector<RealOpenMM>& ...@@ -121,6 +174,55 @@ RealOpenMM AmoebaReferenceForce::getDotProduct3( const std::vector<RealOpenMM>&
return xVector[0]*yVector[0] + xVector[1]*yVector[1] + xVector[2]*yVector[2]; return xVector[0]*yVector[0] + xVector[1]*yVector[1] + xVector[2]*yVector[2];
} }
/**---------------------------------------------------------------------------------------
Calculate dot product of 3d vectors
@param xVector first vector
@param yVector second vector
@return dot product
--------------------------------------------------------------------------------------- */
RealOpenMM AmoebaReferenceForce::getDotProduct3( const RealOpenMM* xVector, const RealOpenMM* yVector ){
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceForce::getDotProduct3";
// ---------------------------------------------------------------------------------------
// get dot product
return xVector[0]*yVector[0] + xVector[1]*yVector[1] + xVector[2]*yVector[2];
}
/**---------------------------------------------------------------------------------------
Calculate dot product of 3d vectors
@param vectorOffset offset into first first vector
@param xVector first vector
@param yVector second vector
@return dot product
--------------------------------------------------------------------------------------- */
RealOpenMM AmoebaReferenceForce::getDotProduct3( unsigned int vectorOffset, const std::vector<RealOpenMM>& xVector, const RealOpenMM* yVector ){
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceForce::getDotProduct3";
// ---------------------------------------------------------------------------------------
// get dot product
return xVector[vectorOffset+0]*yVector[0] + xVector[vectorOffset+1]*yVector[1] + xVector[vectorOffset+2]*yVector[2];
}
/**--------------------------------------------------------------------------------------- /**---------------------------------------------------------------------------------------
Calculate z = x X y Calculate z = x X y
...@@ -148,3 +250,30 @@ void AmoebaReferenceForce::getCrossProduct( const std::vector<RealOpenMM>& xVect ...@@ -148,3 +250,30 @@ void AmoebaReferenceForce::getCrossProduct( const std::vector<RealOpenMM>& xVect
return; return;
} }
/**---------------------------------------------------------------------------------------
Calculate z = x X y
@param xVector input vector
@param yVector input vector
@param zVector output vector: z = x X y
--------------------------------------------------------------------------------------- */
void AmoebaReferenceForce::getCrossProduct( const RealOpenMM* xVector,
const RealOpenMM* yVector,
RealOpenMM* zVector ){
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceForce::getCrossProduct";
// ---------------------------------------------------------------------------------------
zVector[0] = xVector[1]*yVector[2] - xVector[2]*yVector[1];
zVector[1] = xVector[2]*yVector[0] - xVector[0]*yVector[2];
zVector[2] = xVector[0]*yVector[1] - xVector[1]*yVector[0];
return;
}
plugins/amoeba/platforms/reference/src/SimTKReference/AmoebaReferenceForce.h
View file @ e20cc4f2
...@@ -75,6 +75,7 @@ public: ...@@ -75,6 +75,7 @@ public:
--------------------------------------------------------------------------------------- */ --------------------------------------------------------------------------------------- */
static RealOpenMM getNormSquared3( const std::vector<RealOpenMM>& inputVector ); static RealOpenMM getNormSquared3( const std::vector<RealOpenMM>& inputVector );
static RealOpenMM getNormSquared3( const RealOpenMM* inputVector );
/**--------------------------------------------------------------------------------------- /**---------------------------------------------------------------------------------------
...@@ -87,6 +88,17 @@ public: ...@@ -87,6 +88,17 @@ public:
--------------------------------------------------------------------------------------- */ --------------------------------------------------------------------------------------- */
static RealOpenMM getNorm3( const std::vector<RealOpenMM>& inputVector ); static RealOpenMM getNorm3( const std::vector<RealOpenMM>& inputVector );
static RealOpenMM getNorm3( const RealOpenMM* inputVector );
/**---------------------------------------------------------------------------------------
Normalize 3d vector
@param inputVector vector to normalize
--------------------------------------------------------------------------------------- */
static void normalizeVector3( RealOpenMM* inputVector );
/**--------------------------------------------------------------------------------------- /**---------------------------------------------------------------------------------------
...@@ -100,6 +112,8 @@ public: ...@@ -100,6 +112,8 @@ public:
--------------------------------------------------------------------------------------- */ --------------------------------------------------------------------------------------- */
static RealOpenMM getDotProduct3( const std::vector<RealOpenMM>& xVector, const std::vector<RealOpenMM>& yVector ); static RealOpenMM getDotProduct3( const std::vector<RealOpenMM>& xVector, const std::vector<RealOpenMM>& yVector );
static RealOpenMM getDotProduct3( const RealOpenMM* xVector, const RealOpenMM* yVector );
static RealOpenMM getDotProduct3( unsigned int vectorOffset, const std::vector<RealOpenMM>& xVector, const RealOpenMM* yVector );
/**--------------------------------------------------------------------------------------- /**---------------------------------------------------------------------------------------
...@@ -114,6 +128,9 @@ public: ...@@ -114,6 +128,9 @@ public:
static void getCrossProduct( const std::vector<RealOpenMM>& xVector, const std::vector<RealOpenMM>& yVector, static void getCrossProduct( const std::vector<RealOpenMM>& xVector, const std::vector<RealOpenMM>& yVector,
std::vector<RealOpenMM>& zVector ); std::vector<RealOpenMM>& zVector );
static void getCrossProduct( const RealOpenMM* xVector, const RealOpenMM* yVector, RealOpenMM* zVector );
}; };
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
......
plugins/amoeba/platforms/reference/src/SimTKReference/AmoebaReferenceMultipoleForce.cpp 0 → 100644
View file @ e20cc4f2
/* Portions copyright (c) 2006 Stanford University and Simbios.
* Contributors: Pande Group
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS, CONTRIBUTORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "AmoebaReferenceForce.h"
#include "AmoebaReferenceMultipoleForce.h"
#include <sstream>
#include <algorithm>
#define AMOEBA_DEBUG
AmoebaReferenceMultipoleForce::AmoebaReferenceMultipoleForce( ) : _nonbondedMethod(NoCutoff) {
initialize();
}
AmoebaReferenceMultipoleForce::AmoebaReferenceMultipoleForce( NonbondedMethod nonbondedMethod ) :
_nonbondedMethod(nonbondedMethod) {
initialize();
}
void AmoebaReferenceMultipoleForce::initialize( void ){
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM pointFour = 0.4;
static const RealOpenMM pointEight = 0.8;
_electric = 138.9354558456;
_dielectric = one;
unsigned int index = 0;
_mScale[index++] = zero;
_mScale[index++] = zero;
_mScale[index++] = zero;
_mScale[index++] = pointFour;
_mScale[index++] = pointEight;
index = 0;
_dScale[index++] = zero;
_dScale[index++] = one;
_dScale[index++] = one;
_dScale[index++] = one;
_dScale[index++] = one;
index = 0;
_pScale[index++] = zero;
_pScale[index++] = zero;
_pScale[index++] = zero;
_pScale[index++] = one;
_pScale[index++] = one;
index = 0;
_uScale[index++] = one;
_uScale[index++] = one;
_uScale[index++] = one;
_uScale[index++] = one;
_uScale[index++] = one;
_mutualInducedDipoleConverged = 0;
_mutualInducedDipoleIterations = 0;
_maximumMutualInducedDipoleIterations = 100;
_mutualInducedDipoleEpsilon = 1.0e+50;
_mutualInducedDipoleTargetEpsilon = 1.0e-04;
_polarSOR = 0.70;
_debye = 480.33324;
}
AmoebaReferenceMultipoleForce::NonbondedMethod AmoebaReferenceMultipoleForce::getNonbondedMethod( void ) const {
return _nonbondedMethod;
}
void AmoebaReferenceMultipoleForce::setNonbondedMethod( AmoebaReferenceMultipoleForce::NonbondedMethod nonbondedMethod ){
_nonbondedMethod = nonbondedMethod;
}
int AmoebaReferenceMultipoleForce::getMutualInducedDipoleConverged( void ) const {
return _mutualInducedDipoleConverged;
}
void AmoebaReferenceMultipoleForce::setMutualInducedDipoleConverged( int mutualInducedDipoleConverged ){
_mutualInducedDipoleConverged = mutualInducedDipoleConverged;
}
int AmoebaReferenceMultipoleForce::getMutualInducedDipoleIterations( void ) const {
return _mutualInducedDipoleIterations;
}
void AmoebaReferenceMultipoleForce::setMutualInducedDipoleIterations( int mutualInducedDipoleIterations ){
_mutualInducedDipoleIterations = mutualInducedDipoleIterations;
}
RealOpenMM AmoebaReferenceMultipoleForce::getMutualInducedDipoleEpsilon( void ) const {
return _mutualInducedDipoleEpsilon;
}
void AmoebaReferenceMultipoleForce::setMutualInducedDipoleEpsilon( RealOpenMM mutualInducedDipoleEpsilon ){
_mutualInducedDipoleEpsilon = mutualInducedDipoleEpsilon;
}
int AmoebaReferenceMultipoleForce::getMaximumMutualInducedDipoleIterations( void ) const {
return _maximumMutualInducedDipoleIterations;
}
void AmoebaReferenceMultipoleForce::setMaximumMutualInducedDipoleIterations( int maximumMutualInducedDipoleIterations ){
_maximumMutualInducedDipoleIterations = maximumMutualInducedDipoleIterations;
}
RealOpenMM AmoebaReferenceMultipoleForce::getMutualInducedDipoleTargetEpsilon( void ) const {
return _mutualInducedDipoleTargetEpsilon;
}
void AmoebaReferenceMultipoleForce::setMutualInducedDipoleTargetEpsilon( RealOpenMM mutualInducedDipoleTargetEpsilon ){
_mutualInducedDipoleTargetEpsilon = mutualInducedDipoleTargetEpsilon;
}
void AmoebaReferenceMultipoleForce::getDelta( unsigned int particleI, unsigned int particleJ, RealOpenMM** particlePositions,
RealOpenMM* delta ) const {
delta[0] = particlePositions[particleJ][0] - particlePositions[particleI][0];
delta[1] = particlePositions[particleJ][1] - particlePositions[particleI][1];
delta[2] = particlePositions[particleJ][2] - particlePositions[particleI][2];
}
void AmoebaReferenceMultipoleForce::getDelta( const MultipoleParticleData& particleI,
const MultipoleParticleData& particleJ,
RealOpenMM* delta ) const {
delta[0] = particleJ.position[0] - particleI.position[0];
delta[1] = particleJ.position[1] - particleI.position[1];
delta[2] = particleJ.position[2] - particleI.position[2];
}
void AmoebaReferenceMultipoleForce::loadArrayFromVector( unsigned int particleI, unsigned int offset, const std::vector<RealOpenMM>& vectorToCopy,
RealOpenMM* loadArray ) const {
unsigned int vectorOffset = particleI*offset;
for( unsigned ii = 0; ii < offset; ii++ ){
loadArray[ii] = vectorToCopy[vectorOffset+ii];
}
}
void AmoebaReferenceMultipoleForce::logRealOpenMMVectors( const std::string& header, const VectorOfRealOpenMMVectors& printVector,
FILE* log, unsigned int itemsPerVector, int maxPrint ) const {
(void) fprintf( log, "%s", header.c_str() );
for( unsigned int ii = 0; ii < printVector[0].size()/itemsPerVector; ii++ ){
(void) fprintf( log, "%5u ", ii );
for( unsigned int jj = 0; jj < printVector.size(); jj++ ){
if( itemsPerVector > 1 ){
(void) fprintf( log, "[" );
}
for( unsigned int kk = 0; kk < itemsPerVector; kk++ ){
(void) fprintf( log, "%15.7e ", printVector[jj][ii*itemsPerVector+kk] );
}
if( itemsPerVector > 1 ){
(void) fprintf( log, "] " );
}
}
(void) fprintf( log, "\n" );
}
}
void AmoebaReferenceMultipoleForce::logParticleData( const std::string& header, const std::vector<MultipoleParticleData>& particleData,
unsigned int printFlag, FILE* log, int maxPrint ) const {
(void) fprintf( log, "%s", header.c_str() );
for( unsigned int ii = 0; ii < particleData.size(); ii++ ){
(void) fprintf( log, "%5u ", particleData[ii].particleIndex );
if( printFlag & (1 << PARTICLE_POSITION) ){
(void) fprintf( log, "x[%15.7e %15.7e %15.7e] ", particleData[ii].position[0], particleData[ii].position[1], particleData[ii].position[2] );
}
if( printFlag & (1 << PARTICLE_DIPOLE) ){
(void) fprintf( log, "d[%15.7e %15.7e %15.7e] ", particleData[ii].dipole[0], particleData[ii].dipole[1], particleData[ii].dipole[2] );
}
if( printFlag & (1 << PARTICLE_QUADRUPOLE) ){
(void) fprintf( log, "q[%15.7e %15.7e %15.7e] [%15.7e %15.7e %15.7e] [%15.7e %15.7e %15.7e] ",
particleData[ii].quadrupole[QXX], particleData[ii].quadrupole[QXY], particleData[ii].quadrupole[QXZ],
particleData[ii].quadrupole[QXY], particleData[ii].quadrupole[QYY], particleData[ii].quadrupole[QYZ],
particleData[ii].quadrupole[QXZ], particleData[ii].quadrupole[QYZ], particleData[ii].quadrupole[QZZ] );
}
if( printFlag & (1 << PARTICLE_FIELD) ){
(void) fprintf( log, "f[%15.7e %15.7e %15.7e] ", particleData[ii].field[0], particleData[ii].field[1], particleData[ii].field[2] );
}
if( printFlag & (1 << PARTICLE_FIELD_POLAR) ){
(void) fprintf( log, "fp[%15.7e %15.7e %15.7e] ", particleData[ii].fieldPolar[0], particleData[ii].fieldPolar[1], particleData[ii].fieldPolar[2] );
}
if( printFlag & (1 << PARTICLE_INDUCED_DIPOLE) ){
(void) fprintf( log, "i[%15.7e %15.7e %15.7e] ", particleData[ii].inducedDipole[0], particleData[ii].inducedDipole[1], particleData[ii].inducedDipole[2] );
}
if( printFlag & (1 << PARTICLE_INDUCED_DIPOLE_POLAR) ){
(void) fprintf( log, "ip[%15.7e %15.7e %15.7e] ", particleData[ii].inducedDipolePolar[0], particleData[ii].inducedDipolePolar[1], particleData[ii].inducedDipolePolar[2] );
}
(void) fprintf( log, "\n" );
if( (maxPrint > 0) && (ii == maxPrint) && (2*maxPrint < particleData.size()) ){
ii = particleData.size() - maxPrint;
}
}
}
/*
Show scaling factors for a particle
*/
void AmoebaReferenceMultipoleForce::showScaleMapForParticle( unsigned int particleI, FILE* log ) const {
(void) fprintf( log, "Scale map particle %5u maxIndex=%d\n", particleI, _maxScaleIndex[particleI] );
std::string scaleNames[LAST_SCALE_TYPE_INDEX] = { "D", "P", "M" };
for( unsigned int ii = 0; ii < _scaleMaps[particleI].size(); ii++ ){
MapIntRealOpenMM scaleMap = _scaleMaps[particleI][ii];
(void) fprintf( log, " %s scale ", scaleNames[ii].c_str() );
for( MapIntRealOpenMMCI jj = scaleMap.begin(); jj != scaleMap.end(); jj++ ){
//if( jj->first > particleI && jj->second < 1.0 )
if( jj->second < 1.0 )
(void) fprintf( log, "%4d=%5.2f ", jj->first, jj->second );
}
(void) fprintf( log, "\n" );
}
(void) fprintf( log, "\n" );
(void) fflush( log );
}
void AmoebaReferenceMultipoleForce::setupScaleMaps( const std::vector< std::vector< std::vector<int> > >& multipoleParticleCovalentInfo ){
/* Setup for scaling maps:
_scaleMaps[particleIndex][ScaleType] = map, where map[covalentIndex] = scaleFactor
_maxScaleIndex[particleIndex] = max covalent index for particleIndex
multipoleParticleCovalentInfo[ii][jj], jj =0,1,2,3 contains covalent indices (c12, c13, c14, c15)
multipoleParticleCovalentInfo[ii][jj], jj =4,5,6,7 contains covalent indices (p11, p12, p13, p14)
only including covalent particles w/ index >= ii
*/
_scaleMaps.resize( multipoleParticleCovalentInfo.size() );
_maxScaleIndex.resize( multipoleParticleCovalentInfo.size() );
for( unsigned int ii = 0; ii < multipoleParticleCovalentInfo.size(); ii++ ){
_scaleMaps[ii].resize(LAST_SCALE_TYPE_INDEX);
_maxScaleIndex[ii] = 0;
const std::vector< std::vector<int> >& covalentInfo = multipoleParticleCovalentInfo[ii];
const std::vector<int> covalentListP11 = covalentInfo[AmoebaMultipoleForce::PolarizationCovalent11];
// pScale & mScale
for( unsigned jj = 0; jj < AmoebaMultipoleForce::PolarizationCovalent11; jj++ ){
const std::vector<int> covalentList = covalentInfo[jj];
for( unsigned int kk = 0; kk < covalentList.size(); kk++ ){
int covalentIndex = covalentList[kk];
if( covalentIndex < ii )continue;
// handle 0.5 factor for p14
int hit = 0;
if( jj == AmoebaMultipoleForce::Covalent14 ){
for( unsigned int mm = 0; mm < covalentListP11.size() && hit == 0; mm++ ){
if( covalentListP11[mm] == covalentIndex ){
hit = 1;
}
}
}
_scaleMaps[ii][P_SCALE][covalentIndex] = hit ? 0.5*_pScale[jj+1] : _pScale[jj+1];
_scaleMaps[ii][M_SCALE][covalentIndex] = _mScale[jj+1];
_maxScaleIndex[ii] = _maxScaleIndex[ii] < covalentIndex ? covalentIndex : _maxScaleIndex[ii];
}
}
// dScale & uScale
for( unsigned jj = AmoebaMultipoleForce::PolarizationCovalent11; jj < covalentInfo.size(); jj++ ){
const std::vector<int> covalentList = covalentInfo[jj];
for( unsigned int kk = 0; kk < covalentList.size(); kk++ ){
int covalentIndex = covalentList[kk];
if( covalentIndex < ii )continue;
_scaleMaps[ii][D_SCALE][covalentIndex] = _dScale[jj-4];
_scaleMaps[ii][U_SCALE][covalentIndex] = _uScale[jj-4];
_maxScaleIndex[ii] = _maxScaleIndex[ii] < covalentIndex ? covalentIndex : _maxScaleIndex[ii];
}
}
}
//showScaleMapForParticle( 3, stderr );
//showScaleMapForParticle( 10, stderr );
}
RealOpenMM AmoebaReferenceMultipoleForce::getScaleFactor( unsigned int particleI, unsigned int particleJ, ScaleType scaleType ) const {
static const RealOpenMM one = 1.0;
MapIntRealOpenMM scaleMap = _scaleMaps[particleI][scaleType];
MapIntRealOpenMMCI isPresent = scaleMap.find( particleJ );
if( isPresent != scaleMap.end() ){
return isPresent->second;
} else {
return one;
}
}
void AmoebaReferenceMultipoleForce::getDScaleAndPScale( unsigned int particleI, unsigned int particleJ, RealOpenMM& dScale, RealOpenMM& pScale ) const {
dScale = getScaleFactor( particleI, particleJ, D_SCALE );
pScale = getScaleFactor( particleI, particleJ, P_SCALE );
}
void AmoebaReferenceMultipoleForce::getScaleFactors( unsigned int particleI, unsigned int particleJ, RealOpenMM* scaleFactors ) const {
scaleFactors[D_SCALE] = getScaleFactor( particleI, particleJ, D_SCALE );
scaleFactors[P_SCALE] = getScaleFactor( particleI, particleJ, P_SCALE );
scaleFactors[M_SCALE] = getScaleFactor( particleI, particleJ, M_SCALE );
scaleFactors[U_SCALE] = getScaleFactor( particleI, particleJ, U_SCALE );
}
void AmoebaReferenceMultipoleForce::loadParticleData( RealOpenMM** particlePositions,
const std::vector<RealOpenMM>& charges,
const std::vector<RealOpenMM>& dipoles,
const std::vector<RealOpenMM>& quadrupoles,
const std::vector<RealOpenMM>& tholes,
const std::vector<RealOpenMM>& dampingFactors,
const std::vector<RealOpenMM>& polarity,
std::vector<MultipoleParticleData>& particleData ) const {
// ---------------------------------------------------------------------------------------
static const RealOpenMM zero = 0.0;
// ---------------------------------------------------------------------------------------
for( unsigned int ii = 0; ii < charges.size(); ii++ ){
particleData[ii].particleIndex = ii;
particleData[ii].position[0] = particlePositions[ii][0];
particleData[ii].position[1] = particlePositions[ii][1];
particleData[ii].position[2] = particlePositions[ii][2];
particleData[ii].charge = charges[ii];
particleData[ii].dipole[0] = dipoles[3*ii+0];
particleData[ii].dipole[1] = dipoles[3*ii+1];
particleData[ii].dipole[2] = dipoles[3*ii+2];
particleData[ii].quadrupole[QXX] = quadrupoles[9*ii+0];
particleData[ii].quadrupole[QXY] = quadrupoles[9*ii+1];
particleData[ii].quadrupole[QXZ] = quadrupoles[9*ii+2];
particleData[ii].quadrupole[QYY] = quadrupoles[9*ii+4];
particleData[ii].quadrupole[QYZ] = quadrupoles[9*ii+5];
particleData[ii].quadrupole[QZZ] = quadrupoles[9*ii+8];
particleData[ii].thole = tholes[ii];
particleData[ii].dampingFactor = dampingFactors[ii];
particleData[ii].polarity = polarity[ii];
particleData[ii].field[0] = zero;
particleData[ii].field[1] = zero;
particleData[ii].field[2] = zero;
particleData[ii].fieldPolar[0] = zero;
particleData[ii].fieldPolar[1] = zero;
particleData[ii].fieldPolar[2] = zero;
}
}
void AmoebaReferenceMultipoleForce::applyRotationMatrix( MultipoleParticleData& particleI,
const MultipoleParticleData& particleZ,
const MultipoleParticleData& particleX, int axisType ) const {
// ---------------------------------------------------------------------------------------
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM two = 2.0;
static const std::string methodName = "AmoebaReferenceMultipoleForce::applyRotationMatrix";
static const int Y = 1;
static const int X = 0;
static const int Z = 2;
RealOpenMM* vector[3];
RealOpenMM rotationMatrix[3][3];
// ---------------------------------------------------------------------------------------
// handle case where rotation matrix is identity (e.g. single ion)
// get coordinates of this atom and the z & x axis atoms
// compute the vector between the atoms and 1/sqrt(d2), d2 is distance between
// this atom and the axis atom
vector[X] = rotationMatrix[0];
vector[Y] = rotationMatrix[1];
vector[Z] = rotationMatrix[2];
getDelta( particleI, particleZ, vector[Z] );
getDelta( particleI, particleX, vector[X] );
AmoebaReferenceForce::normalizeVector3( vector[Z] );
// branch based on axis type
if( axisType == AmoebaMultipoleForce::Bisector ){
// bisector
// dx = dx1 + dx2 (in Tinker code)
AmoebaReferenceForce::normalizeVector3( vector[X] );
vector[Z][0] += vector[X][0];
vector[Z][1] += vector[X][1];
vector[Z][2] += vector[X][2];
AmoebaReferenceForce::normalizeVector3( vector[Z] );
}
RealOpenMM dot = vector[Z][0]*vector[X][0] + vector[Z][1]*vector[X][1] + vector[Z][2]*vector[X][2];
vector[X][0] -= dot*vector[Z][0];
vector[X][1] -= dot*vector[Z][1];
vector[X][2] -= dot*vector[Z][2];
AmoebaReferenceForce::normalizeVector3( vector[X] );
AmoebaReferenceForce::getCrossProduct( vector[Z], vector[X], vector[Y] );
RealOpenMM labDipole[3];
for( int ii = 0; ii < 3; ii++ ){
labDipole[ii] = particleI.dipole[0]*rotationMatrix[0][ii];
for( int jj = 1; jj < 3; jj++ ){
labDipole[ii] += particleI.dipole[jj]*rotationMatrix[jj][ii];
}
}
particleI.dipole[0] = labDipole[0];
particleI.dipole[1] = labDipole[1];
particleI.dipole[2] = labDipole[2];
RealOpenMM mPole[3][3];
RealOpenMM rPole[3][3] = { { zero, zero, zero },
{ zero, zero, zero },
{ zero, zero, zero } };
mPole[0][0] = particleI.quadrupole[QXX];
mPole[0][1] = particleI.quadrupole[QXY];
mPole[0][2] = particleI.quadrupole[QXZ];
mPole[1][0] = particleI.quadrupole[QXY];
mPole[1][1] = particleI.quadrupole[QYY];
mPole[1][2] = particleI.quadrupole[QYZ];
mPole[2][0] = particleI.quadrupole[QXZ];
mPole[2][1] = particleI.quadrupole[QYZ];
mPole[2][2] = particleI.quadrupole[QZZ];
for( int ii = 0; ii < 3; ii++ ){
for( int jj = ii; jj < 3; jj++ ){
for( int kk = 0; kk < 3; kk++ ){
for( int mm = 0; mm < 3; mm++ ){
rPole[ii][jj] += rotationMatrix[kk][ii]*rotationMatrix[mm][jj]*mPole[kk][mm];
}
}
}
}
particleI.quadrupole[QXX] = rPole[0][0];
particleI.quadrupole[QXY] = rPole[0][1];
particleI.quadrupole[QXZ] = rPole[0][2];
particleI.quadrupole[QYY] = rPole[1][1];
particleI.quadrupole[QYZ] = rPole[1][2];
particleI.quadrupole[QZZ] = rPole[2][2];
return;
}
void AmoebaReferenceMultipoleForce::getAndScaleInverseRs( RealOpenMM dampI, RealOpenMM dampJ,
RealOpenMM tholeI, RealOpenMM tholeJ,
RealOpenMM r, std::vector<RealOpenMM>& rrI ) const {
// ---------------------------------------------------------------------------------------
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM two = 2.0;
static const RealOpenMM three = 3.0;
static const RealOpenMM five = 5.0;
static const RealOpenMM fifty = 50.0;
static const std::string methodName = "AmoebaReferenceMultipoleForce::scaleInverseRs";
// ---------------------------------------------------------------------------------------
RealOpenMM rI = one/r;
RealOpenMM r2I = rI*rI;
rrI[0] = rI*r2I;
RealOpenMM constantFactor = 3.0;
for( unsigned int ii = 1; ii < rrI.size(); ii++ ){
rrI[ii] = constantFactor*rrI[ii-1]*r2I;
constantFactor += 2.0;
}
RealOpenMM damp = dampI*dampJ;
if( damp != zero ){
RealOpenMM pgamma = tholeI < tholeJ ? tholeI : tholeJ;
RealOpenMM ratio = (r/damp);
ratio = ratio*ratio*ratio;
damp = -pgamma*ratio;
if( damp > -fifty ){
RealOpenMM dampExp = EXP( damp );
rrI[0] *= one - dampExp;
rrI[1] *= one - ( one - damp )*dampExp;
if( rrI.size() > 2 ){
rrI[2] *= one - ( one - damp + (0.6*damp*damp))*dampExp;
}
}
}
}
void AmoebaReferenceMultipoleForce::calculateFixedEFieldPairIxn( MultipoleParticleData& particleI, MultipoleParticleData& particleJ,
RealOpenMM dScale, RealOpenMM pScale ) const {
// ---------------------------------------------------------------------------------------
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM two = 2.0;
//static const std::string methodName = "AmoebaReferenceMultipoleForce::calculateFixedEFieldPairIxn";
// ---------------------------------------------------------------------------------------
// get deltaR, R2, and R between 2 atoms
RealOpenMM deltaR[3];
getDelta( particleI, particleJ, deltaR );
RealOpenMM r = AmoebaReferenceForce::getNorm3( deltaR );
std::vector<RealOpenMM> rrI(3);
// get scaling factors, if needed
getAndScaleInverseRs( particleI.dampingFactor, particleJ.dampingFactor, particleI.thole, particleJ.thole, r, rrI );
RealOpenMM rr3 = rrI[0];
RealOpenMM rr5 = rrI[1];
RealOpenMM rr7 = rrI[2];
RealOpenMM rr5_2 = rr5*two;
// field at particle I due multipoles at particle J
RealOpenMM qDotDelta[3];
qDotDelta[0] = deltaR[0]*particleJ.quadrupole[QXX] + deltaR[1]*particleJ.quadrupole[QXY] + deltaR[2]*particleJ.quadrupole[QXZ];
qDotDelta[1] = deltaR[0]*particleJ.quadrupole[QXY] + deltaR[1]*particleJ.quadrupole[QYY] + deltaR[2]*particleJ.quadrupole[QYZ];
qDotDelta[2] = deltaR[0]*particleJ.quadrupole[QXZ] + deltaR[1]*particleJ.quadrupole[QYZ] + deltaR[2]*particleJ.quadrupole[QZZ];
RealOpenMM dipoleDelta = AmoebaReferenceForce::getDotProduct3( particleJ.dipole, deltaR );
RealOpenMM qdpoleDelta = AmoebaReferenceForce::getDotProduct3( qDotDelta, deltaR );
RealOpenMM factor = rr3*particleJ.charge - rr5*dipoleDelta + rr7*qdpoleDelta;
RealOpenMM field[3];
field[0] = deltaR[0]*factor + rr3*particleJ.dipole[0] - rr5_2*qDotDelta[0];
field[1] = deltaR[1]*factor + rr3*particleJ.dipole[1] - rr5_2*qDotDelta[1];
field[2] = deltaR[2]*factor + rr3*particleJ.dipole[2] - rr5_2*qDotDelta[2];
for( unsigned int ii = 0; ii < 3; ii++ ){
particleI.field[ii] -= dScale*field[ii];
particleI.fieldPolar[ii] -= pScale*field[ii];
}
// field at particle J due multipoles at particle I
qDotDelta[0] = deltaR[0]*particleI.quadrupole[QXX] + deltaR[1]*particleI.quadrupole[QXY] + deltaR[2]*particleI.quadrupole[QXZ];
qDotDelta[1] = deltaR[0]*particleI.quadrupole[QXY] + deltaR[1]*particleI.quadrupole[QYY] + deltaR[2]*particleI.quadrupole[QYZ];
qDotDelta[2] = deltaR[0]*particleI.quadrupole[QXZ] + deltaR[1]*particleI.quadrupole[QYZ] + deltaR[2]*particleI.quadrupole[QZZ];
dipoleDelta = AmoebaReferenceForce::getDotProduct3( particleI.dipole, deltaR );
qdpoleDelta = AmoebaReferenceForce::getDotProduct3( qDotDelta, deltaR );
factor = rr3*particleI.charge + rr5*dipoleDelta + rr7*qdpoleDelta;
field[0] = deltaR[0]*factor - rr3*particleI.dipole[0] - rr5_2*qDotDelta[0];
field[1] = deltaR[1]*factor - rr3*particleI.dipole[1] - rr5_2*qDotDelta[1];
field[2] = deltaR[2]*factor - rr3*particleI.dipole[2] - rr5_2*qDotDelta[2];
for( unsigned int ii = 0; ii < 3; ii++ ){
particleJ.field[ii] += dScale*field[ii];
particleJ.fieldPolar[ii] += pScale*field[ii];
}
return;
}
void AmoebaReferenceMultipoleForce::calculateInducedDipolePairIxn( MultipoleParticleData& particleI,
MultipoleParticleData& particleJ,
std::vector<RealOpenMM>& field,
std::vector<RealOpenMM>& fieldPolar ) const {
// ---------------------------------------------------------------------------------------
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM two = 2.0;
static const std::string methodName = "AmoebaReferenceMultipoleForce::calculateInducedDipolePairIxn";
// ---------------------------------------------------------------------------------------
// get deltaR, R2, and R between 2 atoms
RealOpenMM deltaR[3];
getDelta( particleI, particleJ, deltaR );
RealOpenMM r = AmoebaReferenceForce::getNorm3( deltaR );
std::vector<RealOpenMM> rrI(2);
getAndScaleInverseRs( particleI.dampingFactor, particleJ.dampingFactor,
particleI.thole, particleJ.thole, r, rrI );
RealOpenMM rr3 = -rrI[0];
RealOpenMM rr5 = rrI[1];
unsigned int indexOffset = 3*particleI.particleIndex;
RealOpenMM dDotDelta = rr5*AmoebaReferenceForce::getDotProduct3( particleJ.inducedDipole, deltaR );
field[indexOffset+0] += rr3*particleJ.inducedDipole[0] + dDotDelta*deltaR[0];
field[indexOffset+1] += rr3*particleJ.inducedDipole[1] + dDotDelta*deltaR[1];
field[indexOffset+2] += rr3*particleJ.inducedDipole[2] + dDotDelta*deltaR[2];
dDotDelta = rr5*AmoebaReferenceForce::getDotProduct3( particleJ.inducedDipolePolar, deltaR );
fieldPolar[indexOffset+0] += rr3*particleJ.inducedDipolePolar[0] + dDotDelta*deltaR[0];
fieldPolar[indexOffset+1] += rr3*particleJ.inducedDipolePolar[1] + dDotDelta*deltaR[1];
fieldPolar[indexOffset+2] += rr3*particleJ.inducedDipolePolar[2] + dDotDelta*deltaR[2];
dDotDelta = rr5*AmoebaReferenceForce::getDotProduct3( particleI.inducedDipole, deltaR );
indexOffset = 3*particleJ.particleIndex;
field[indexOffset+0] += rr3*particleI.inducedDipole[0] + dDotDelta*deltaR[0];
field[indexOffset+1] += rr3*particleI.inducedDipole[1] + dDotDelta*deltaR[1];
field[indexOffset+2] += rr3*particleI.inducedDipole[2] + dDotDelta*deltaR[2];
dDotDelta = rr5*AmoebaReferenceForce::getDotProduct3( particleI.inducedDipolePolar, deltaR );
fieldPolar[indexOffset+0] += rr3*particleI.inducedDipolePolar[0] + dDotDelta*deltaR[0];
fieldPolar[indexOffset+1] += rr3*particleI.inducedDipolePolar[1] + dDotDelta*deltaR[1];
fieldPolar[indexOffset+2] += rr3*particleI.inducedDipolePolar[2] + dDotDelta*deltaR[2];
return;
}
void AmoebaReferenceMultipoleForce::calculateInducedDipoleField( std::vector<MultipoleParticleData>& particleData,
std::vector<RealOpenMM>& field,
std::vector<RealOpenMM>& fieldPolar ) const {
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceMultipoleForce::calculateInducedDipoleField";
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM two = 2.0;
FILE* log = stderr;
// ---------------------------------------------------------------------------------------
std::fill( field.begin(), field.end(), zero );
std::fill( fieldPolar.begin(), fieldPolar.end(), zero );
for( unsigned int ii = 0; ii < particleData.size(); ii++ ){
for( unsigned int jj = ii+1; jj < particleData.size(); jj++ ){
calculateInducedDipolePairIxn( particleData[ii], particleData[jj], field, fieldPolar);
}
}
#ifdef AMOEBA_DEBUG
if( 0 && log ){
std::string header = "Induced fields\n";
VectorOfRealOpenMMVectors printVector(2);
printVector[0] = field;
printVector[1] = fieldPolar;
int maxPrint = 10;
logRealOpenMMVectors( header, printVector, log, 3, maxPrint );
exit(0);
}
#endif
return;
}
void AmoebaReferenceMultipoleForce::updateInducedDipole( MultipoleParticleData& particleI,
const std::vector<RealOpenMM>& field,
const std::vector<RealOpenMM>& fieldPolar,
RealOpenMM& epsilonD, RealOpenMM& epsilonP ) const {
unsigned int particleOffset = particleI.particleIndex*3;
for( unsigned int ii = 0; ii < 3; ii++ ){
RealOpenMM oldValue = particleI.inducedDipole[ii];
RealOpenMM newValue = particleI.field[ii] + particleI.polarity*field[particleOffset+ii];
RealOpenMM delta = newValue - oldValue;
newValue = oldValue + _polarSOR*delta;
particleI.inducedDipole[ii] = newValue;
// polarSOR*polarSOR factor included in final epsilon calculation
epsilonD += delta*delta;
oldValue = particleI.inducedDipolePolar[ii];
newValue = particleI.fieldPolar[ii] + particleI.polarity*fieldPolar[particleOffset+ii];
delta = newValue - oldValue;
newValue = oldValue + _polarSOR*delta;
particleI.inducedDipolePolar[ii] = newValue;
// polarSOR*polarSOR factor included in final epsilon calculation
epsilonP += delta*delta;
}
}
void AmoebaReferenceMultipoleForce::calculateNoCutoffInducedDipoles( std::vector<MultipoleParticleData>& particleData ){
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceMultipoleForce::calculateNoCutoffInducedDipoles";
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM two = 2.0;
FILE* log = stderr;
// ---------------------------------------------------------------------------------------
// initialize inducedDipole to fixedE_Field
unsigned int numParticles = particleData.size();
for( unsigned int ii = 0; ii < numParticles; ii++ ){
particleData[ii].field[0] *= particleData[ii].polarity;
particleData[ii].field[1] *= particleData[ii].polarity;
particleData[ii].field[2] *= particleData[ii].polarity;
particleData[ii].fieldPolar[0] *= particleData[ii].polarity;
particleData[ii].fieldPolar[1] *= particleData[ii].polarity;
particleData[ii].fieldPolar[2] *= particleData[ii].polarity;
particleData[ii].inducedDipole[0] = particleData[ii].field[0];
particleData[ii].inducedDipole[1] = particleData[ii].field[1];
particleData[ii].inducedDipole[2] = particleData[ii].field[2];
particleData[ii].inducedDipolePolar[0] = particleData[ii].fieldPolar[0];
particleData[ii].inducedDipolePolar[1] = particleData[ii].fieldPolar[1];
particleData[ii].inducedDipolePolar[2] = particleData[ii].fieldPolar[2];
}
std::vector<RealOpenMM> field( numParticles*3 );
std::vector<RealOpenMM> fieldPolar( numParticles*3 );
bool done = false;
setMutualInducedDipoleConverged( false );
unsigned int iteration = 0;
RealOpenMM currentEpsilon = 1.0e+50;
while( !done ){
calculateInducedDipoleField( particleData, field, fieldPolar );
RealOpenMM epsilonDirect = zero;
RealOpenMM epsilonPolar = zero;
for( unsigned int ii = 0; ii < numParticles; ii++ ){
updateInducedDipole( particleData[ii], field, fieldPolar, epsilonDirect, epsilonPolar );
}
RealOpenMM epsilon = epsilonDirect > epsilonPolar ? epsilonDirect : epsilonPolar;
epsilon = _polarSOR*_debye*SQRT( epsilon/( static_cast<RealOpenMM>(numParticles) ) );
fprintf( stderr, "MIb %3u eps=%15.7e %15.7e %15.7e\n", iteration, epsilonDirect, epsilonPolar, epsilon );
if( epsilon < getMutualInducedDipoleTargetEpsilon() ){
setMutualInducedDipoleConverged( true );
done = true;
}
if( currentEpsilon < epsilon || iteration >= getMaximumMutualInducedDipoleIterations() ){
done = true;
}
currentEpsilon = epsilon;
iteration++;
}
setMutualInducedDipoleEpsilon( currentEpsilon );
setMutualInducedDipoleIterations( iteration );
#ifdef AMOEBA_DEBUG
if( log ){
std::stringstream header;
header << "MutualInducedDipoles:";
header << " converged=" << getMutualInducedDipoleConverged();
header << " iter=" << getMutualInducedDipoleIterations();
header << " eps=" << getMutualInducedDipoleEpsilon();
header << "\n";
unsigned int printFlag = (1 << PARTICLE_INDUCED_DIPOLE ) | (1 << PARTICLE_INDUCED_DIPOLE_POLAR);
int maxPrint = 10;
logParticleData( header.str(), particleData, printFlag, log, maxPrint );
}
#endif
return;
}
RealOpenMM AmoebaReferenceMultipoleForce::calculateNoCutoffElectrostaticPairIxn( const MultipoleParticleData& particleI,
const MultipoleParticleData& particleK,
RealOpenMM* scalingFactors, RealOpenMM** forces,
std::vector<Vec3>& torque ) const {
/*
off2
*/
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceMultipoleForce::calculateNoCutoffElectrostatic";
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM two = 2.0;
FILE* log = stderr;
// ---------------------------------------------------------------------------------------
RealOpenMM e,ei,fgrp,gfd;
RealOpenMM damp,expdamp;
RealOpenMM pdi,pti,pgamma;
RealOpenMM scale3,scale3i;
RealOpenMM scale5,scale5i;
RealOpenMM scale7,scale7i;
RealOpenMM temp3,temp5,temp7;
RealOpenMM psc3,psc5,psc7;
RealOpenMM dsc3,dsc5,dsc7;
RealOpenMM xr,yr,zr;
RealOpenMM xix,yix,zix;
RealOpenMM xiy,yiy,ziy;
RealOpenMM xiz,yiz,ziz;
RealOpenMM xkx,ykx,zkx;
RealOpenMM xky,yky,zky;
RealOpenMM xkz,ykz,zkz;
RealOpenMM r,r2,rr1,rr3;
RealOpenMM rr5,rr7,rr9,rr11;
RealOpenMM vxx,vyy,vzz;
RealOpenMM vyx,vzx,vzy;
RealOpenMM qi[10];
RealOpenMM ck,qk[10];
RealOpenMM frcxi[4],frcxk[4];
RealOpenMM frcyi[4],frcyk[4];
RealOpenMM frczi[4],frczk[4];
RealOpenMM fridmp[4],findmp[4];
RealOpenMM ftm2[4],ftm2i[4];
RealOpenMM ttm2[4],ttm3[4];
RealOpenMM ttm2i[4],ttm3i[4];
RealOpenMM dixdk[4],fdir[4];
RealOpenMM dixuk[4],dkxui[4];
RealOpenMM dixukp[4],dkxuip[4];
RealOpenMM uixqkr[4],ukxqir[4];
RealOpenMM uixqkrp[4],ukxqirp[4];
RealOpenMM qiuk[4],qkui[4];
RealOpenMM qiukp[4],qkuip[4];
RealOpenMM rxqiuk[4],rxqkui[4];
RealOpenMM rxqiukp[4],rxqkuip[4];
RealOpenMM qidk[4],qkdi[4];
RealOpenMM qir[4],qkr[4];
RealOpenMM qiqkr[4],qkqir[4];
RealOpenMM qixqk[4],rxqir[4];
RealOpenMM dixr[4],dkxr[4];
RealOpenMM dixqkr[4],dkxqir[4];
RealOpenMM rxqkr[4],qkrxqir[4];
RealOpenMM rxqikr[4],rxqkir[4];
RealOpenMM rxqidk[4],rxqkdi[4];
RealOpenMM ddsc3[4],ddsc5[4];
RealOpenMM ddsc7[4];
RealOpenMM gl[10],gli[8],glip[8];
RealOpenMM sc[11],sci[9],scip[9];
RealOpenMM gf[8],gfi[7],gti[7];
RealOpenMM delta[3];
getDelta( particleI, particleK, delta );
xr = delta[0];
yr = delta[1];
zr = delta[2];
// call image (xr,yr,zr);
r2 = AmoebaReferenceForce::getNormSquared3( delta );
// if( r2 > off2 )return zero;
// set conversion factor, cutoff and switching coefficients
RealOpenMM f = _electric /_dielectric;
// call switch ('MPOLE');
// set scale factors for permanent multipole and induced terms
pdi = particleI.dampingFactor;
pti = particleI.thole;
qi[0] = particleI.quadrupole[QXX];
qi[1] = particleI.quadrupole[QXY];
qi[2] = particleI.quadrupole[QXZ];
qi[3] = particleI.quadrupole[QXY];
qi[4] = particleI.quadrupole[QYY];
qi[5] = particleI.quadrupole[QYZ];
qi[6] = particleI.quadrupole[QXZ];
qi[7] = particleI.quadrupole[QYZ];
qi[8] = particleI.quadrupole[QZZ];
// set interaction scaling coefficients for connected atoms;
/*
kz = zaxis(k);
kx = xaxis(k);
usek = (use(kk) .or. use(kz) .or. use(kx));
proceed = .true.;
if( use_group) call groups (proceed,fgrp,ii,kk,0,0,0,0);
if( .not. use_intra) proceed = .true.;
if( proceed) proceed = (usei .or. usek);
if( .not. proceed) goto 10;
*/
qk[0] = particleK.quadrupole[QXX];
qk[1] = particleK.quadrupole[QXY];
qk[2] = particleK.quadrupole[QXZ];
qk[3] = particleK.quadrupole[QXY];
qk[4] = particleK.quadrupole[QYY];
qk[5] = particleK.quadrupole[QYZ];
qk[6] = particleK.quadrupole[QXZ];
qk[7] = particleK.quadrupole[QYZ];
qk[8] = particleK.quadrupole[QZZ];
// apply Thole polarization damping to scale factors
r = sqrt(r2);
rr1 = 1.0 / r;
rr3 = rr1 / r2;
rr5 = 3.0 * rr3 / r2;
rr7 = 5.0 * rr5 / r2;
rr9 = 7.0 * rr7 / r2;
rr11 = 9.0 * rr9 / r2;
scale3 = 1.0;
scale5 = 1.0;
scale7 = 1.0;
for( unsigned int jj = 0; jj < 3; jj++ ){
ddsc3[jj] = 0.0;
ddsc5[jj] = 0.0;
ddsc7[jj] = 0.0;
}
damp = particleI.dampingFactor*particleK.dampingFactor;
if( damp != zero ){
pgamma = particleI.thole < particleK.thole ? particleI.thole : particleK.thole;
RealOpenMM ratio = (r/damp);
damp = -pgamma * ratio*ratio*ratio;
if( damp > -50.0){
expdamp = exp(damp);
scale3 = 1.0 - expdamp;
scale5 = 1.0 - (1.0-damp)*expdamp;
scale7 = 1.0 - (1.0-damp+0.6*damp*damp)*expdamp;
temp3 = -3.0 * damp * expdamp / r2;
temp5 = -damp;
temp7 = -0.2 - 0.6*damp;
ddsc3[0] = temp3 * xr;
ddsc3[1] = temp3 * yr;
ddsc3[2] = temp3 * zr;
ddsc5[0] = temp5 * ddsc3[0];
ddsc5[1] = temp5 * ddsc3[1];
ddsc5[2] = temp5 * ddsc3[2];
ddsc7[0] = temp7 * ddsc5[0];
ddsc7[1] = temp7 * ddsc5[1];
ddsc7[2] = temp7 * ddsc5[2];
}
}
scale3i = scale3 * scalingFactors[U_SCALE];
scale5i = scale5 * scalingFactors[U_SCALE];
scale7i = scale7 * scalingFactors[U_SCALE];
dsc3 = scale3 * scalingFactors[D_SCALE];
dsc5 = scale5 * scalingFactors[D_SCALE];
dsc7 = scale7 * scalingFactors[D_SCALE];
psc3 = scale3 * scalingFactors[P_SCALE];
psc5 = scale5 * scalingFactors[P_SCALE];
psc7 = scale7 * scalingFactors[P_SCALE];
// construct necessary auxiliary vectors
dixdk[0] = particleI.dipole[1]*particleK.dipole[2] - particleI.dipole[2]*particleK.dipole[1];
dixdk[1] = particleI.dipole[2]*particleK.dipole[0] - particleI.dipole[0]*particleK.dipole[2];
dixdk[2] = particleI.dipole[0]*particleK.dipole[1] - particleI.dipole[1]*particleK.dipole[0];
dixuk[0] = particleI.dipole[1]*particleK.inducedDipole[2] - particleI.dipole[2]*particleK.inducedDipole[1];
dixuk[1] = particleI.dipole[2]*particleK.inducedDipole[0] - particleI.dipole[0]*particleK.inducedDipole[2];
dixuk[2] = particleI.dipole[0]*particleK.inducedDipole[1] - particleI.dipole[1]*particleK.inducedDipole[0];
dkxui[0] = particleK.dipole[1]*particleI.inducedDipole[2] - particleK.dipole[2]*particleI.inducedDipole[1];
dkxui[1] = particleK.dipole[2]*particleI.inducedDipole[0] - particleK.dipole[0]*particleI.inducedDipole[2];
dkxui[2] = particleK.dipole[0]*particleI.inducedDipole[1] - particleK.dipole[1]*particleI.inducedDipole[0];
dixukp[0] = particleI.dipole[1]*particleK.inducedDipolePolar[2] - particleI.dipole[2]*particleK.inducedDipolePolar[1];
dixukp[1] = particleI.dipole[2]*particleK.inducedDipolePolar[0] - particleI.dipole[0]*particleK.inducedDipolePolar[2];
dixukp[2] = particleI.dipole[0]*particleK.inducedDipolePolar[1] - particleI.dipole[1]*particleK.inducedDipolePolar[0];
dkxuip[0] = particleK.dipole[1]*particleI.inducedDipolePolar[2] - particleK.dipole[2]*particleI.inducedDipolePolar[1];
dkxuip[1] = particleK.dipole[2]*particleI.inducedDipolePolar[0] - particleK.dipole[0]*particleI.inducedDipolePolar[2];
dkxuip[2] = particleK.dipole[0]*particleI.inducedDipolePolar[1] - particleK.dipole[1]*particleI.inducedDipolePolar[0];
dixr[0] = particleI.dipole[1]*zr -particleI.dipole[2]*yr;
dixr[1] = particleI.dipole[2]*xr -particleI.dipole[0]*zr;
dixr[2] = particleI.dipole[0]*yr -particleI.dipole[1]*xr;
dkxr[0] = particleK.dipole[1]*zr - particleK.dipole[2]*yr;
dkxr[1] = particleK.dipole[2]*xr - particleK.dipole[0]*zr;
dkxr[2] = particleK.dipole[0]*yr - particleK.dipole[1]*xr;
qir[0] = qi[0]*xr + qi[3]*yr + qi[6]*zr;
qir[1] = qi[1]*xr + qi[4]*yr + qi[7]*zr;
qir[2] = qi[2]*xr + qi[5]*yr + qi[8]*zr;
qkr[0] = qk[0]*xr + qk[3]*yr + qk[6]*zr;
qkr[1] = qk[1]*xr + qk[4]*yr + qk[7]*zr;
qkr[2] = qk[2]*xr + qk[5]*yr + qk[8]*zr;
qiqkr[0] = qi[0]*qkr[0] + qi[3]*qkr[1] + qi[6]*qkr[2];
qiqkr[1] = qi[1]*qkr[0] + qi[4]*qkr[1] + qi[7]*qkr[2];
qiqkr[2] = qi[2]*qkr[0] + qi[5]*qkr[1] + qi[8]*qkr[2];
qkqir[0] = qk[0]*qir[0] + qk[3]*qir[1] + qk[6]*qir[2];
qkqir[1] = qk[1]*qir[0] + qk[4]*qir[1] + qk[7]*qir[2];
qkqir[2] = qk[2]*qir[0] + qk[5]*qir[1] + qk[8]*qir[2];
qixqk[0] = qi[1]*qk[2] + qi[4]*qk[5] + qi[7]*qk[8] - qi[2]*qk[1] - qi[5]*qk[4] - qi[8]*qk[7];
qixqk[1] = qi[2]*qk[0] + qi[5]*qk[3] + qi[8]*qk[6] - qi[0]*qk[2] - qi[3]*qk[5] - qi[6]*qk[8];
qixqk[2] = qi[0]*qk[1] + qi[3]*qk[4] + qi[6]*qk[7] - qi[1]*qk[0] - qi[4]*qk[3] - qi[7]*qk[6];
rxqir[0] = yr*qir[2] - zr*qir[1];
rxqir[1] = zr*qir[0] - xr*qir[2];
rxqir[2] = xr*qir[1] - yr*qir[0];
rxqkr[0] = yr*qkr[2] - zr*qkr[1];
rxqkr[1] = zr*qkr[0] - xr*qkr[2];
rxqkr[2] = xr*qkr[1] - yr*qkr[0];
rxqikr[0] = yr*qiqkr[2] - zr*qiqkr[1];
rxqikr[1] = zr*qiqkr[0] - xr*qiqkr[2];
rxqikr[2] = xr*qiqkr[1] - yr*qiqkr[0];
rxqkir[0] = yr*qkqir[2] - zr*qkqir[1];
rxqkir[1] = zr*qkqir[0] - xr*qkqir[2];
rxqkir[2] = xr*qkqir[1] - yr*qkqir[0];
qkrxqir[0] = qkr[1]*qir[2] - qkr[2]*qir[1];
qkrxqir[1] = qkr[2]*qir[0] - qkr[0]*qir[2];
qkrxqir[2] = qkr[0]*qir[1] - qkr[1]*qir[0];
qidk[0] = qi[0]*particleK.dipole[0] + qi[3]*particleK.dipole[1] + qi[6]*particleK.dipole[2];
qidk[1] = qi[1]*particleK.dipole[0] + qi[4]*particleK.dipole[1] + qi[7]*particleK.dipole[2];
qidk[2] = qi[2]*particleK.dipole[0] + qi[5]*particleK.dipole[1] + qi[8]*particleK.dipole[2];
qkdi[0] = qk[0]*particleI.dipole[0] + qk[3]*particleI.dipole[1] + qk[6]*particleI.dipole[2];
qkdi[1] = qk[1]*particleI.dipole[0] + qk[4]*particleI.dipole[1] + qk[7]*particleI.dipole[2];
qkdi[2] = qk[2]*particleI.dipole[0] + qk[5]*particleI.dipole[1] + qk[8]*particleI.dipole[2];
qiuk[0] = qi[0]*particleK.inducedDipole[0] + qi[3]*particleK.inducedDipole[1] + qi[6]*particleK.inducedDipole[2];
qiuk[1] = qi[1]*particleK.inducedDipole[0] + qi[4]*particleK.inducedDipole[1] + qi[7]*particleK.inducedDipole[2];
qiuk[2] = qi[2]*particleK.inducedDipole[0] + qi[5]*particleK.inducedDipole[1] + qi[8]*particleK.inducedDipole[2];
qkui[0] = qk[0]*particleI.inducedDipole[0] + qk[3]*particleI.inducedDipole[1] + qk[6]*particleI.inducedDipole[2];
qkui[1] = qk[1]*particleI.inducedDipole[0] + qk[4]*particleI.inducedDipole[1] + qk[7]*particleI.inducedDipole[2];
qkui[2] = qk[2]*particleI.inducedDipole[0] + qk[5]*particleI.inducedDipole[1] + qk[8]*particleI.inducedDipole[2];
qiukp[0] = qi[0]*particleK.inducedDipolePolar[0] + qi[3]*particleK.inducedDipolePolar[1] + qi[6]*particleK.inducedDipolePolar[2];
qiukp[1] = qi[1]*particleK.inducedDipolePolar[0] + qi[4]*particleK.inducedDipolePolar[1] + qi[7]*particleK.inducedDipolePolar[2];
qiukp[2] = qi[2]*particleK.inducedDipolePolar[0] + qi[5]*particleK.inducedDipolePolar[1] + qi[8]*particleK.inducedDipolePolar[2];
qkuip[0] = qk[0]*particleI.inducedDipolePolar[0] + qk[3]*particleI.inducedDipolePolar[1] + qk[6]*particleI.inducedDipolePolar[2];
qkuip[1] = qk[1]*particleI.inducedDipolePolar[0] + qk[4]*particleI.inducedDipolePolar[1] + qk[7]*particleI.inducedDipolePolar[2];
qkuip[2] = qk[2]*particleI.inducedDipolePolar[0] + qk[5]*particleI.inducedDipolePolar[1] + qk[8]*particleI.inducedDipolePolar[2];
dixqkr[0] = particleI.dipole[1]*qkr[2] -particleI.dipole[2]*qkr[1];
dixqkr[1] = particleI.dipole[2]*qkr[0] -particleI.dipole[0]*qkr[2];
dixqkr[2] = particleI.dipole[0]*qkr[1] -particleI.dipole[1]*qkr[0];
dkxqir[0] = particleK.dipole[1]*qir[2] - particleK.dipole[2]*qir[1];
dkxqir[1] = particleK.dipole[2]*qir[0] - particleK.dipole[0]*qir[2];
dkxqir[2] = particleK.dipole[0]*qir[1] - particleK.dipole[1]*qir[0];
uixqkr[0] = particleI.inducedDipole[1]*qkr[2] - particleI.inducedDipole[2]*qkr[1];
uixqkr[1] = particleI.inducedDipole[2]*qkr[0] - particleI.inducedDipole[0]*qkr[2];
uixqkr[2] = particleI.inducedDipole[0]*qkr[1] - particleI.inducedDipole[1]*qkr[0];
ukxqir[0] = particleK.inducedDipole[1]*qir[2] - particleK.inducedDipole[2]*qir[1];
ukxqir[1] = particleK.inducedDipole[2]*qir[0] - particleK.inducedDipole[0]*qir[2];
ukxqir[2] = particleK.inducedDipole[0]*qir[1] - particleK.inducedDipole[1]*qir[0];
uixqkrp[0] = particleI.inducedDipolePolar[1]*qkr[2] - particleI.inducedDipolePolar[2]*qkr[1];
uixqkrp[1] = particleI.inducedDipolePolar[2]*qkr[0] - particleI.inducedDipolePolar[0]*qkr[2];
uixqkrp[2] = particleI.inducedDipolePolar[0]*qkr[1] - particleI.inducedDipolePolar[1]*qkr[0];
ukxqirp[0] = particleK.inducedDipolePolar[1]*qir[2] - particleK.inducedDipolePolar[2]*qir[1];
ukxqirp[1] = particleK.inducedDipolePolar[2]*qir[0] - particleK.inducedDipolePolar[0]*qir[2];
ukxqirp[2] = particleK.inducedDipolePolar[0]*qir[1] - particleK.inducedDipolePolar[1]*qir[0];
rxqidk[0] = yr*qidk[2] - zr*qidk[1];
rxqidk[1] = zr*qidk[0] - xr*qidk[2];
rxqidk[2] = xr*qidk[1] - yr*qidk[0];
rxqkdi[0] = yr*qkdi[2] - zr*qkdi[1];
rxqkdi[1] = zr*qkdi[0] - xr*qkdi[2];
rxqkdi[2] = xr*qkdi[1] - yr*qkdi[0];
rxqiuk[0] = yr*qiuk[2] - zr*qiuk[1];
rxqiuk[1] = zr*qiuk[0] - xr*qiuk[2];
rxqiuk[2] = xr*qiuk[1] - yr*qiuk[0];
rxqkui[0] = yr*qkui[2] - zr*qkui[1];
rxqkui[1] = zr*qkui[0] - xr*qkui[2];
rxqkui[2] = xr*qkui[1] - yr*qkui[0];
rxqiukp[0] = yr*qiukp[2] - zr*qiukp[1];
rxqiukp[1] = zr*qiukp[0] - xr*qiukp[2];
rxqiukp[2] = xr*qiukp[1] - yr*qiukp[0];
rxqkuip[0] = yr*qkuip[2] - zr*qkuip[1];
rxqkuip[1] = zr*qkuip[0] - xr*qkuip[2];
rxqkuip[2] = xr*qkuip[1] - yr*qkuip[0];
// calculate scalar products for permanent components
sc[1] = particleI.dipole[0]*particleK.dipole[0] +particleI.dipole[1]*particleK.dipole[1] +particleI.dipole[2]*particleK.dipole[2];
sc[2] = particleI.dipole[0]*xr +particleI.dipole[1]*yr +particleI.dipole[2]*zr;
sc[3] = particleK.dipole[0]*xr + particleK.dipole[1]*yr + particleK.dipole[2]*zr;
sc[4] = qir[0]*xr + qir[1]*yr + qir[2]*zr;
sc[5] = qkr[0]*xr + qkr[1]*yr + qkr[2]*zr;
sc[6] = qir[0]*particleK.dipole[0] + qir[1]*particleK.dipole[1] + qir[2]*particleK.dipole[2];
sc[7] = qkr[0]*particleI.dipole[0] + qkr[1]*particleI.dipole[1] + qkr[2]*particleI.dipole[2];
sc[8] = qir[0]*qkr[0] + qir[1]*qkr[1] + qir[2]*qkr[2];
sc[9] = qi[0]*qk[0] + qi[1]*qk[1] + qi[2]*qk[2] +
qi[3]*qk[3] + qi[4]*qk[4] + qi[5]*qk[5] +
qi[6]*qk[6] + qi[7]*qk[7] + qi[8]*qk[8];
// calculate scalar products for induced components
sci[0] = particleI.inducedDipole[0]*particleK.dipole[0] + particleI.inducedDipole[1]*particleK.dipole[1] + particleI.inducedDipole[2]*particleK.dipole[2] +particleI.dipole[0]*particleK.inducedDipole[0] +particleI.dipole[1]*particleK.inducedDipole[1] +particleI.dipole[2]*particleK.inducedDipole[2];
sci[1] = particleI.inducedDipole[0]*particleK.inducedDipole[0] + particleI.inducedDipole[1]*particleK.inducedDipole[1] + particleI.inducedDipole[2]*particleK.inducedDipole[2];
sci[2] = particleI.inducedDipole[0]*xr + particleI.inducedDipole[1]*yr + particleI.inducedDipole[2]*zr;
sci[3] = particleK.inducedDipole[0]*xr + particleK.inducedDipole[1]*yr + particleK.inducedDipole[2]*zr;
sci[6] = qir[0]*particleK.inducedDipole[0] + qir[1]*particleK.inducedDipole[1] + qir[2]*particleK.inducedDipole[2];
sci[7] = qkr[0]*particleI.inducedDipole[0] + qkr[1]*particleI.inducedDipole[1] + qkr[2]*particleI.inducedDipole[2];
scip[0] = particleI.inducedDipolePolar[0]*particleK.dipole[0] + particleI.inducedDipolePolar[1]*particleK.dipole[1] + particleI.inducedDipolePolar[2]*particleK.dipole[2] +particleI.dipole[0]*particleK.inducedDipolePolar[0] +particleI.dipole[1]*particleK.inducedDipolePolar[1] +particleI.dipole[2]*particleK.inducedDipolePolar[2];
scip[1] = particleI.inducedDipole[0]*particleK.inducedDipolePolar[0]+particleI.inducedDipole[1]*particleK.inducedDipolePolar[1] + particleI.inducedDipole[2]*particleK.inducedDipolePolar[2]+particleI.inducedDipolePolar[0]*particleK.inducedDipole[0] + particleI.inducedDipolePolar[1]*particleK.inducedDipole[1]+particleI.inducedDipolePolar[2]*particleK.inducedDipole[2];
scip[2] = particleI.inducedDipolePolar[0]*xr + particleI.inducedDipolePolar[1]*yr + particleI.inducedDipolePolar[2]*zr;
scip[3] = particleK.inducedDipolePolar[0]*xr + particleK.inducedDipolePolar[1]*yr + particleK.inducedDipolePolar[2]*zr;
scip[6] = qir[0]*particleK.inducedDipolePolar[0] + qir[1]*particleK.inducedDipolePolar[1] + qir[2]*particleK.inducedDipolePolar[2];
scip[7] = qkr[0]*particleI.inducedDipolePolar[0] + qkr[1]*particleI.inducedDipolePolar[1] + qkr[2]*particleI.inducedDipolePolar[2];
// calculate the gl functions for permanent components
gl[0] = particleI.charge*particleK.charge;
gl[1] = particleK.charge*sc[2] - particleI.charge*sc[3];
gl[2] = particleI.charge*sc[5] + particleK.charge*sc[4] - sc[2]*sc[3];
gl[3] = sc[2]*sc[5] - sc[3]*sc[4];
gl[4] = sc[4]*sc[5];
gl[5] = -4.0 * sc[8];
gl[6] = sc[1];
gl[7] = 2.0 * (sc[6]-sc[7]);
gl[8] = 2.0 * sc[9];
// calculate the gl functions for induced components
gli[0] = particleK.charge*sci[2] - particleI.charge*sci[3];
gli[1] = -sc[2]*sci[3] - sci[2]*sc[3];
gli[2] = sci[2]*sc[5] - sci[3]*sc[4];
gli[5] = sci[0];
gli[6] = 2.0 * (sci[6]-sci[7]);
glip[0] = particleK.charge*scip[2] - particleI.charge*scip[3];
glip[1] = -sc[2]*scip[3] - scip[2]*sc[3];
glip[2] = scip[2]*sc[5] - scip[3]*sc[4];
glip[5] = scip[0];
glip[6] = 2.0 * (scip[6]-scip[7]);
// compute the energy contributions for this interaction
e = rr1*gl[0] + rr3*(gl[1]+gl[6]) + rr5*(gl[2]+gl[7]+gl[8]) + rr7*(gl[3]+gl[5]) + rr9*gl[4];
ei = 0.5*(rr3*(gli[0]+gli[5])*psc3 + rr5*(gli[1]+gli[6])*psc5 + rr7*gli[2]*psc7);
e = f * scalingFactors[M_SCALE] * e;
ei = f * ei;
RealOpenMM energy = e + ei;
// intermediate variables for the permanent components
gf[0] = rr3*gl[0] + rr5*(gl[1]+gl[6]) + rr7*(gl[2]+gl[7]+gl[8]) + rr9*(gl[3]+gl[5]) + rr11*gl[4];
gf[1] = -particleK.charge*rr3 + sc[3]*rr5 - sc[5]*rr7;
gf[2] = particleI.charge*rr3 + sc[2]*rr5 + sc[4]*rr7;
gf[3] = 2.0 * rr5;
gf[4] = 2.0 * (-particleK.charge*rr5+sc[3]*rr7-sc[5]*rr9);
gf[5] = 2.0 * (-particleI.charge*rr5-sc[2]*rr7-sc[4]*rr9);
gf[6] = 4.0 * rr7;
// intermediate variables for the induced components
gfi[0] = 0.5 * rr5 * ((gli[0]+gli[5])*psc3 + (glip[0]+glip[5])*dsc3 + scip[1]*scale3i)
+ 0.5 * rr7 * ((gli[6]+gli[1])*psc5 + (glip[6]+glip[1])*dsc5 - (sci[2]*scip[3]+scip[2]*sci[3])*scale5i)
+ 0.5 * rr9 * (gli[2]*psc7+glip[2]*dsc7);
gfi[1] = -rr3*particleK.charge + rr5*sc[3] - rr7*sc[5];
gfi[2] = rr3*particleI.charge + rr5*sc[2] + rr7*sc[4];
gfi[3] = 2.0 * rr5;
gfi[4] = rr7 * (sci[3]*psc7+scip[3]*dsc7);
gfi[5] = -rr7 * (sci[2]*psc7+scip[2]*dsc7);
// get the permanent force components
ftm2[0] = gf[0]*xr + gf[1]*particleI.dipole[0] + gf[2]*particleK.dipole[0]
+ gf[3]*(qkdi[0]-qidk[0]) + gf[4]*qir[0]
+ gf[5]*qkr[0] + gf[6]*(qiqkr[0]+qkqir[0]);
ftm2[1] = gf[0]*yr + gf[1]*particleI.dipole[1] + gf[2]*particleK.dipole[1]
+ gf[3]*(qkdi[1]-qidk[1]) + gf[4]*qir[1]
+ gf[5]*qkr[1] + gf[6]*(qiqkr[1]+qkqir[1]);
ftm2[2] = gf[0]*zr + gf[1]*particleI.dipole[2] + gf[2]*particleK.dipole[2]
+ gf[3]*(qkdi[2]-qidk[2]) + gf[4]*qir[2]
+ gf[5]*qkr[2] + gf[6]*(qiqkr[2]+qkqir[2]);
// get the induced force components
ftm2i[0] = gfi[0]*xr + 0.5*
(- rr3*particleK.charge*(particleI.inducedDipole[0]*psc3+particleI.inducedDipolePolar[0]*dsc3)
+ rr5*sc[3]*(particleI.inducedDipole[0]*psc5+particleI.inducedDipolePolar[0]*dsc5)
- rr7*sc[5]*(particleI.inducedDipole[0]*psc7+particleI.inducedDipolePolar[0]*dsc7))
+ (rr3*particleI.charge*(particleK.inducedDipole[0]*psc3+particleK.inducedDipolePolar[0]*dsc3)
+ rr5*sc[2]*(particleK.inducedDipole[0]*psc5+particleK.inducedDipolePolar[0]*dsc5)
+ rr7*sc[4]*(particleK.inducedDipole[0]*psc7+particleK.inducedDipolePolar[0]*dsc7))*0.5
+ rr5*scale5i*(sci[3]*particleI.inducedDipolePolar[0]+scip[3]*particleI.inducedDipole[0]
+ sci[2]*particleK.inducedDipolePolar[0]+scip[2]*particleK.inducedDipole[0])*0.5
+ 0.5*(sci[3]*psc5+scip[3]*dsc5)*rr5*particleI.dipole[0]
+ 0.5*(sci[2]*psc5+scip[2]*dsc5)*rr5*particleK.dipole[0]
+ 0.5*gfi[3]*((qkui[0]-qiuk[0])*psc5
+ (qkuip[0]-qiukp[0])*dsc5)
+ gfi[4]*qir[0] + gfi[5]*qkr[0];
ftm2i[1] = gfi[0]*yr + 0.5*
(- rr3*particleK.charge*(particleI.inducedDipole[1]*psc3+particleI.inducedDipolePolar[1]*dsc3)
+ rr5*sc[3]*(particleI.inducedDipole[1]*psc5+particleI.inducedDipolePolar[1]*dsc5)
- rr7*sc[5]*(particleI.inducedDipole[1]*psc7+particleI.inducedDipolePolar[1]*dsc7))
+ (rr3*particleI.charge*(particleK.inducedDipole[1]*psc3+particleK.inducedDipolePolar[1]*dsc3)
+ rr5*sc[2]*(particleK.inducedDipole[1]*psc5+particleK.inducedDipolePolar[1]*dsc5)
+ rr7*sc[4]*(particleK.inducedDipole[1]*psc7+particleK.inducedDipolePolar[1]*dsc7))*0.5
+ rr5*scale5i*(sci[3]*particleI.inducedDipolePolar[1]+scip[3]*particleI.inducedDipole[1]
+ sci[2]*particleK.inducedDipolePolar[1]+scip[2]*particleK.inducedDipole[1])*0.5
+ 0.5*(sci[3]*psc5+scip[3]*dsc5)*rr5*particleI.dipole[1]
+ 0.5*(sci[2]*psc5+scip[2]*dsc5)*rr5*particleK.dipole[1]
+ 0.5*gfi[3]*((qkui[1]-qiuk[1])*psc5
+ (qkuip[1]-qiukp[1])*dsc5)
+ gfi[4]*qir[1] + gfi[5]*qkr[1];
ftm2i[2] = gfi[0]*zr + 0.5*
(- rr3*particleK.charge*(particleI.inducedDipole[2]*psc3+particleI.inducedDipolePolar[2]*dsc3)
+ rr5*sc[3]*(particleI.inducedDipole[2]*psc5+particleI.inducedDipolePolar[2]*dsc5)
- rr7*sc[5]*(particleI.inducedDipole[2]*psc7+particleI.inducedDipolePolar[2]*dsc7))
+ (rr3*particleI.charge*(particleK.inducedDipole[2]*psc3+particleK.inducedDipolePolar[2]*dsc3)
+ rr5*sc[2]*(particleK.inducedDipole[2]*psc5+particleK.inducedDipolePolar[2]*dsc5)
+ rr7*sc[4]*(particleK.inducedDipole[2]*psc7+particleK.inducedDipolePolar[2]*dsc7))*0.5
+ rr5*scale5i*(sci[3]*particleI.inducedDipolePolar[2]+scip[3]*particleI.inducedDipole[2]
+ sci[2]*particleK.inducedDipolePolar[2]+scip[2]*particleK.inducedDipole[2])*0.5
+ 0.5*(sci[3]*psc5+scip[3]*dsc5)*rr5*particleI.dipole[2]
+ 0.5*(sci[2]*psc5+scip[2]*dsc5)*rr5*particleK.dipole[2]
+ 0.5*gfi[3]*((qkui[2]-qiuk[2])*psc5
+ (qkuip[2]-qiukp[2])*dsc5)
+ gfi[4]*qir[2] + gfi[5]*qkr[2];
// account for partially excluded induced interactions
temp3 = 0.5 * rr3 * ((gli[0]+gli[5])*scalingFactors[P_SCALE] +(glip[0]+glip[5])*scalingFactors[D_SCALE]);
temp5 = 0.5 * rr5 * ((gli[1]+gli[6])*scalingFactors[P_SCALE] +(glip[1]+glip[6])*scalingFactors[D_SCALE]);
temp7 = 0.5 * rr7 * (gli[2]*scalingFactors[P_SCALE] +glip[2]*scalingFactors[D_SCALE]);
fridmp[0] = temp3*ddsc3[0] + temp5*ddsc5[0] + temp7*ddsc7[0];
fridmp[1] = temp3*ddsc3[1] + temp5*ddsc5[1] + temp7*ddsc7[1];
fridmp[2] = temp3*ddsc3[2] + temp5*ddsc5[2] + temp7*ddsc7[2];
// find some scaling terms for induced-induced force
temp3 = 0.5 * rr3 * scalingFactors[U_SCALE] * scip[1];
temp5 = -0.5 * rr5 * scalingFactors[U_SCALE]
* (sci[2]*scip[3]+scip[2]*sci[3]);
findmp[0] = temp3*ddsc3[0] + temp5*ddsc5[0];
findmp[1] = temp3*ddsc3[1] + temp5*ddsc5[1];
findmp[2] = temp3*ddsc3[2] + temp5*ddsc5[2];
// modify induced force for partially excluded interactions
ftm2i[0] = ftm2i[0] - fridmp[0] - findmp[0];
ftm2i[1] = ftm2i[1] - fridmp[1] - findmp[1];
ftm2i[2] = ftm2i[2] - fridmp[2] - findmp[2];
// correction to convert mutual to direct polarization force
/*
if( poltyp .eq. 'DIRECT'){
gfd = 0.5 * (rr5*scip[1]*scale3i
- rr7*(scip[2]*sci[3]+sci[2]*scip[3])*scale5i);
temp5 = 0.5 * rr5 * scale5i;
fdir[0] = gfd*xr + temp5
* (sci[3]*particleI.inducedDipolePolar[0]+scip[3]*particleI.inducedDipole[0]
+sci[2]*particleK.inducedDipolePolar[0]+scip[2]*particleK.inducedDipole[0]);
fdir[1] = gfd*yr + temp5
* (sci[3]*particleI.inducedDipolePolar[1]+scip[3]*particleI.inducedDipole[1]
+sci[2]*particleK.inducedDipolePolar[1]+scip[2]*particleK.inducedDipole[1]);
fdir[2] = gfd*zr + temp5
* (sci[3]*particleI.inducedDipolePolar[2]+scip[3]*particleI.inducedDipole[2]
+sci[2]*particleK.inducedDipolePolar[2]+scip[2]*particleK.inducedDipole[2]);
ftm2i[0] = ftm2i[0] - fdir[0] + findmp[0];
ftm2i[1] = ftm2i[1] - fdir[1] + findmp[1];
ftm2i[2] = ftm2i[2] - fdir[2] + findmp[2];
}
*/
// intermediate terms for induced torque on multipoles
gti[1] = 0.5 * rr5 * (sci[3]*psc5+scip[3]*dsc5);
gti[2] = 0.5 * rr5 * (sci[2]*psc5+scip[2]*dsc5);
gti[3] = gfi[3];
gti[4] = gfi[4];
gti[5] = gfi[5];
// get the permanent torque components
ttm2[0] = -rr3*dixdk[0] + gf[1]*dixr[0] - gf[4]*rxqir[0]
+ gf[3]*(dixqkr[0]+dkxqir[0]+rxqidk[0]-2.0*qixqk[0])
- gf[6]*(rxqikr[0]+qkrxqir[0]);
ttm2[1] = -rr3*dixdk[1] + gf[1]*dixr[1] - gf[4]*rxqir[1]
+ gf[3]*(dixqkr[1]+dkxqir[1]+rxqidk[1]-2.0*qixqk[1])
- gf[6]*(rxqikr[1]+qkrxqir[1]);
ttm2[2] = -rr3*dixdk[2] + gf[1]*dixr[2] - gf[4]*rxqir[2]
+ gf[3]*(dixqkr[2]+dkxqir[2]+rxqidk[2]-2.0*qixqk[2])
- gf[6]*(rxqikr[2]+qkrxqir[2]);
ttm3[0] = rr3*dixdk[0] + gf[2]*dkxr[0] - gf[5]*rxqkr[0]
- gf[3]*(dixqkr[0]+dkxqir[0]+rxqkdi[0]-2.0*qixqk[0])
- gf[6]*(rxqkir[0]-qkrxqir[0]);
ttm3[1] = rr3*dixdk[1] + gf[2]*dkxr[1] - gf[5]*rxqkr[1]
- gf[3]*(dixqkr[1]+dkxqir[1]+rxqkdi[1]-2.0*qixqk[1])
- gf[6]*(rxqkir[1]-qkrxqir[1]);
ttm3[2] = rr3*dixdk[2] + gf[2]*dkxr[2] - gf[5]*rxqkr[2]
- gf[3]*(dixqkr[2]+dkxqir[2]+rxqkdi[2]-2.0*qixqk[2])
- gf[6]*(rxqkir[2]-qkrxqir[2]);
// get the induced torque components
ttm2i[0] = -rr3*(dixuk[0]*psc3+dixukp[0]*dsc3)*0.5
+ gti[1]*dixr[0] + gti[3]*((ukxqir[0]+rxqiuk[0])*psc5
+(ukxqirp[0]+rxqiukp[0])*dsc5)*0.5 - gti[4]*rxqir[0];
ttm2i[1] = -rr3*(dixuk[1]*psc3+dixukp[1]*dsc3)*0.5
+ gti[1]*dixr[1] + gti[3]*((ukxqir[1]+rxqiuk[1])*psc5
+(ukxqirp[1]+rxqiukp[1])*dsc5)*0.5 - gti[4]*rxqir[1];
ttm2i[2] = -rr3*(dixuk[2]*psc3+dixukp[2]*dsc3)*0.5
+ gti[1]*dixr[2] + gti[3]*((ukxqir[2]+rxqiuk[2])*psc5
+(ukxqirp[2]+rxqiukp[2])*dsc5)*0.5 - gti[4]*rxqir[2];
ttm3i[0] = -rr3*(dkxui[0]*psc3+dkxuip[0]*dsc3)*0.5
+ gti[2]*dkxr[0] - gti[3]*((uixqkr[0]+rxqkui[0])*psc5
+(uixqkrp[0]+rxqkuip[0])*dsc5)*0.5 - gti[5]*rxqkr[0];
ttm3i[1] = -rr3*(dkxui[1]*psc3+dkxuip[1]*dsc3)*0.5
+ gti[2]*dkxr[1] - gti[3]*((uixqkr[1]+rxqkui[1])*psc5
+(uixqkrp[1]+rxqkuip[1])*dsc5)*0.5 - gti[5]*rxqkr[1];
ttm3i[2] = -rr3*(dkxui[2]*psc3+dkxuip[2]*dsc3)*0.5
+ gti[2]*dkxr[2] - gti[3]*((uixqkr[2]+rxqkui[2])*psc5
+(uixqkrp[2]+rxqkuip[2])*dsc5)*0.5 - gti[5]*rxqkr[2];
// handle the case where scaling is used
for( unsigned int jj = 0; jj < 3; jj++ ){
ftm2[jj] = f * ftm2[jj] * scalingFactors[M_SCALE];
ftm2i[jj] = f * ftm2i[jj];
ttm2[jj] = f * ttm2[jj] * scalingFactors[M_SCALE];
ttm2i[jj] = f * ttm2i[jj];
ttm3[jj] = f * ttm3[jj] * scalingFactors[M_SCALE];
ttm3i[jj] = f * ttm3i[jj];
}
// increment forces
for( unsigned int jj = 0; jj < 3; jj++ ){
forces[particleI.particleIndex][jj] -= ftm2[jj] + ftm2i[jj];
torque[particleI.particleIndex][jj] += ttm2[jj] + ttm2i[jj];
forces[particleK.particleIndex][jj] += ftm2[jj] + ftm2i[jj];
torque[particleK.particleIndex][jj] += ttm3[jj] + ttm3i[jj];
}
return energy;
}
RealOpenMM AmoebaReferenceMultipoleForce::calculateNoCutoffElectrostatic( std::vector<MultipoleParticleData>& particleData, RealOpenMM** forces ) const {
// ---------------------------------------------------------------------------------------
static const std::string methodName = "AmoebaReferenceMultipoleForce::calculateNoCutoffElectrostatic: ";
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const int debug = 1;
FILE* log = stderr;
// ---------------------------------------------------------------------------------------
// initialize forces/energy and scaleing factors
std::vector<Vec3> torques( particleData.size() );
for( unsigned int ii = 0; ii < particleData.size(); ii++ ){
torques[ii] = Vec3( zero, zero, zero );
}
if( debug ){
if( log ){
(void) fprintf( log, "\n%s Zeroing forces\n", methodName.c_str() );
}
for( unsigned int ii = 0; ii < particleData.size(); ii++ ){
forces[ii][0] = zero;
forces[ii][1] = zero;
forces[ii][2] = zero;
}
}
RealOpenMM energy = zero;
RealOpenMM scaleFactors[LAST_SCALE_TYPE_INDEX];
for( unsigned int kk = 0; kk < LAST_SCALE_TYPE_INDEX; kk++ ){
scaleFactors[kk] = one;
}
// main loop over particle pairs
for( unsigned int ii = 0; ii < particleData.size(); ii++ ){
for( unsigned int jj = ii+1; jj < particleData.size(); jj++ ){
if( jj <= _maxScaleIndex[ii] ){
getScaleFactors( ii, jj, scaleFactors);
}
energy += calculateNoCutoffElectrostaticPairIxn( particleData[ii], particleData[jj], scaleFactors, forces, torques );
if( jj <= _maxScaleIndex[ii] ){
for( unsigned int kk = 0; kk < LAST_SCALE_TYPE_INDEX; kk++ ){
scaleFactors[kk] = one;
}
}
}
}
if( log ){
RealOpenMM conversion = 1.0/4.184;
(void) fprintf( log, "Force & torques energy=%15.7e\n", 10.0*energy*conversion );
conversion *= -0.1;
unsigned int maxPrint = 10;
for( unsigned int ii = 0; ii < particleData.size(); ii++ ){
(void) fprintf( log, "%6u [%15.7e %15.7e %15.7e] [%15.7e %15.7e %15.7e]\n", ii,
conversion*forces[ii][0], conversion*forces[ii][1], conversion*forces[ii][2],
conversion*torques[ii][0], conversion*torques[ii][1], conversion*torques[ii][2] );
if( ii == maxPrint && 2*maxPrint < particleData.size() ){
ii = particleData.size() - maxPrint;
}
}
}
return energy;
}
RealOpenMM AmoebaReferenceMultipoleForce::calculateNoCutoffForceAndEnergy( int numParticles,
RealOpenMM** particlePositions,
const std::vector<RealOpenMM>& charges,
const std::vector<RealOpenMM>& dipoles,
const std::vector<RealOpenMM>& quadrupoles,
const std::vector<RealOpenMM>& tholes,
const std::vector<RealOpenMM>& dampingFactors,
const std::vector<RealOpenMM>& polarity,
const std::vector<int>& axisTypes,
const std::vector<int>& multipoleAtomId1s,
const std::vector<int>& multipoleAtomId2s,
RealOpenMM** forces ){
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "AmoebaReferenceMultipoleForce::calculateNoCutoffForceAndEnergy";
static const RealOpenMM zero = 0.0;
static const RealOpenMM one = 1.0;
static const RealOpenMM two = 2.0;
FILE* log = stderr;
// ---------------------------------------------------------------------------------------
// get lab frame dipole and quadrupoles
std::vector<MultipoleParticleData> particleData( numParticles );
loadParticleData( particlePositions, charges, dipoles, quadrupoles,
tholes, dampingFactors, polarity, particleData );
for( unsigned int ii = 0; ii < numParticles; ii++ ){
if( multipoleAtomId1s[ii] >= 0 && multipoleAtomId2s[ii] >= 0 ){
applyRotationMatrix( particleData[ii], particleData[multipoleAtomId1s[ii]], particleData[multipoleAtomId2s[ii]], axisTypes[ii] );
}
}
#ifdef AMOEBA_DEBUG
if( log ){
std::string header = "labFrameQuadrupole and labFrameDipole\n";
unsigned int printFlag = (1 << PARTICLE_DIPOLE) | (1 << PARTICLE_QUADRUPOLE);
int maxPrint = 10;
logParticleData( header, particleData, printFlag, log, maxPrint );
}
#endif
// particleData[].field & particleData[].fieldPolar zeroed in loadParticleData
for( unsigned int ii = 0; ii < numParticles; ii++ ){
for( unsigned int jj = ii+1; jj < numParticles; jj++ ){
// field[0]: field at site ii due site jj's charge/dipole/quadrupole
// field[1]: field at site jj due site ii's charge/dipole/quadrupole
// if site jj is less than max covalent scaling index then get/apply scaling constants
// otherwise add unmodified field and fieldPolar to particle fields
RealOpenMM dScale, pScale;
if( jj <= _maxScaleIndex[ii] ){
getDScaleAndPScale( ii, jj, dScale, pScale );
} else {
dScale = pScale = one;
}
calculateFixedEFieldPairIxn( particleData[ii], particleData[jj], dScale, pScale );
}
}
#ifdef AMOEBA_DEBUG
if( log ){
std::string header = "Fixed fields\n";
unsigned int printFlag = (1<<PARTICLE_FIELD) | (1<<PARTICLE_FIELD_POLAR);
int maxPrint = 10;
logParticleData( header, particleData, printFlag, log, maxPrint );
}
#endif
// get induced dipoles
calculateNoCutoffInducedDipoles( particleData );
// check if induced dipoles converged
if( !getMutualInducedDipoleConverged() ){
std::stringstream message;
message << "Induced dipoles did not converge: ";
message << " iterations=" << getMutualInducedDipoleIterations();
message << " eps=" << getMutualInducedDipoleEpsilon();
throw OpenMMException(message.str());
}
RealOpenMM energy = calculateNoCutoffElectrostatic( particleData, forces );
return energy;
}
RealOpenMM AmoebaReferenceMultipoleForce::calculateForceAndEnergy( int numParticles,
RealOpenMM** particlePositions,
const std::vector<RealOpenMM>& charges,
const std::vector<RealOpenMM>& dipoles,
const std::vector<RealOpenMM>& quadrupoles,
const std::vector<RealOpenMM>& tholes,
const std::vector<RealOpenMM>& dampingFactors,
const std::vector<RealOpenMM>& polarity,
const std::vector<int>& axisTypes,
const std::vector<int>& multipoleAtomId1s,
const std::vector<int>& multipoleAtomId2s,
const std::vector< std::vector< std::vector<int> > >& multipoleParticleCovalentInfo,
RealOpenMM** forces ){
setupScaleMaps( multipoleParticleCovalentInfo );
if( getNonbondedMethod() == NoCutoff || 1 ){
return calculateNoCutoffForceAndEnergy( numParticles, particlePositions, charges, dipoles, quadrupoles, tholes, dampingFactors,
polarity, axisTypes, multipoleAtomId1s, multipoleAtomId2s, forces );
}
}
plugins/amoeba/platforms/reference/src/SimTKReference/AmoebaReferenceMultipoleForce.h 0 → 100644
View file @ e20cc4f2
/* Portions copyright (c) 2006 Stanford University and Simbios.
* Contributors: Pande Group
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS, CONTRIBUTORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __AmoebaReferenceMultipoleForce_H__
#define __AmoebaReferenceMultipoleForce_H__
#include "SimTKUtilities/SimTKOpenMMRealType.h"
#include "openmm/Vec3.h"
#include "AmoebaMultipoleForce.h"
#include <string>
#include <vector>
#include <map>
typedef std::map< unsigned int, RealOpenMM> MapIntRealOpenMM;
typedef MapIntRealOpenMM::iterator MapIntRealOpenMMI;
typedef MapIntRealOpenMM::const_iterator MapIntRealOpenMMCI;
typedef std::vector<std::vector<RealOpenMM> > VectorOfRealOpenMMVectors;
typedef VectorOfRealOpenMMVectors::iterator VectorOfRealOpenMMVectorsI;
typedef VectorOfRealOpenMMVectors::const_iterator VectorOfRealOpenMMVectorsCI;
using namespace OpenMM;
// ---------------------------------------------------------------------------------------
class AmoebaReferenceMultipoleForce {
public:
/**
* This is an enumeration of the different methods that may be used for handling long range Multipole forces.
*/
enum NonbondedMethod {
/**
* No cutoff is applied to the interactions. The full set of N^2 interactions is computed exactly.
* This necessarily means that periodic boundary conditions cannot be used. This is the default.
*/
NoCutoff = 0,
/**
* Interactions beyond the cutoff distance are ignored.
*/
CutoffNonPeriodic = 1,
/**
* Periodic boundary conditions are used, so that each particle interacts only with the nearest periodic copy of
* each other particle. Interactions beyond the cutoff distance are ignored.
*/
CutoffPeriodic = 2
};
/**---------------------------------------------------------------------------------------
Constructor
--------------------------------------------------------------------------------------- */
AmoebaReferenceMultipoleForce( );
/**---------------------------------------------------------------------------------------
Constructor
--------------------------------------------------------------------------------------- */
AmoebaReferenceMultipoleForce( NonbondedMethod nonbondedMethod );
/**---------------------------------------------------------------------------------------
Destructor
--------------------------------------------------------------------------------------- */
~AmoebaReferenceMultipoleForce( ){};
/**---------------------------------------------------------------------------------------
Get nonbonded method
@return nonbonded method
--------------------------------------------------------------------------------------- */
NonbondedMethod getNonbondedMethod( void ) const;
/**---------------------------------------------------------------------------------------
Set nonbonded method
@param nonbonded method
--------------------------------------------------------------------------------------- */
void setNonbondedMethod( NonbondedMethod nonbondedMethod );
/**---------------------------------------------------------------------------------------
Get flag indicating if mutual induced dipoles are converged
@return nonzero if converged
--------------------------------------------------------------------------------------- */
int getMutualInducedDipoleConverged( void ) const;
/**---------------------------------------------------------------------------------------
Get number of iterations used in computing mutual induced dipoles
@return number of iterations
--------------------------------------------------------------------------------------- */
int getMutualInducedDipoleIterations( void ) const;
/**---------------------------------------------------------------------------------------
Get the final epsilon for mutual induced dipoles
@return epsilon
--------------------------------------------------------------------------------------- */
RealOpenMM getMutualInducedDipoleEpsilon( void ) const;
/**---------------------------------------------------------------------------------------
Set the target epsilon for converging mutual induced dipoles
@param target epsilon for converging mutual induced dipoles
--------------------------------------------------------------------------------------- */
void setMutualInducedDipoleTargetEpsilon( RealOpenMM targetEpsilon );
/**---------------------------------------------------------------------------------------
Get the target epsilon for converging mutual induced dipoles
@return target epsilon for converging mutual induced dipoles
--------------------------------------------------------------------------------------- */
RealOpenMM getMutualInducedDipoleTargetEpsilon( void ) const;
/**---------------------------------------------------------------------------------------
Set the maximum number of iterations to be executed in converging mutual induced dipoles
@param maximum number of iterations to be executed in converging mutual induced dipoles
--------------------------------------------------------------------------------------- */
void setMaximumMutualInducedDipoleIterations( int maximumMutualInducedDipoleIterations );
/**---------------------------------------------------------------------------------------
Get the maximum number of iterations to be executed in converging mutual induced dipoles
@return maximum number of iterations to be executed in converging mutual induced dipoles
--------------------------------------------------------------------------------------- */
int getMaximumMutualInducedDipoleIterations( void ) const;
/**---------------------------------------------------------------------------------------
Calculate Amoeba Hal vdw ixns
@param numParticles number of particles
@param particlePositions Cartesian coordinates of particles
@param indexIVs position index for associated reducing particle
@param indexClasses class index for combining sigmas/epsilons (not currently used)
@param sigmas particle sigmas
@param epsilons particle epsilons
@param reductions particle reduction factors
@param vdwExclusions particle exclusions
@param forces add forces to this vector
@return energy
--------------------------------------------------------------------------------------- */
RealOpenMM calculateForceAndEnergy( int numParticles, RealOpenMM** particlePositions,
const std::vector<RealOpenMM>& charges,
const std::vector<RealOpenMM>& dipoles,
const std::vector<RealOpenMM>& quadrupoles,
const std::vector<RealOpenMM>& tholes,
const std::vector<RealOpenMM>& dampingFactors,
const std::vector<RealOpenMM>& polarity,
const std::vector<int>& axisTypes,
const std::vector<int>& multipoleAtomId1s,
const std::vector<int>& multipoleAtomId2s,
const std::vector< std::vector< std::vector<int> > >& multipoleAtomCovalentInfo,
RealOpenMM** forces );
private:
struct MultipoleParticleData {
unsigned int particleIndex;
RealOpenMM position[3];
RealOpenMM charge;
RealOpenMM dipole[3];
RealOpenMM quadrupole[6];
RealOpenMM thole;
RealOpenMM dampingFactor;
RealOpenMM polarity;
RealOpenMM field[3];
RealOpenMM fieldPolar[3];
RealOpenMM inducedDipole[3];
RealOpenMM inducedDipolePolar[3];
};
enum MultipoleParticleDataEnum { PARTICLE_POSITION, PARTICLE_CHARGE, PARTICLE_DIPOLE, PARTICLE_QUADRUPOLE,
PARTICLE_THOLE, PARTICLE_DAMPING_FACTOR, PARTICLE_POLARITY, PARTICLE_FIELD,
PARTICLE_FIELD_POLAR, PARTICLE_INDUCED_DIPOLE, PARTICLE_INDUCED_DIPOLE_POLAR };
NonbondedMethod _nonbondedMethod;
RealOpenMM _electric;
RealOpenMM _dielectric;
enum ScaleType { D_SCALE, P_SCALE, M_SCALE, U_SCALE, LAST_SCALE_TYPE_INDEX };
std::vector< std::vector< MapIntRealOpenMM > > _scaleMaps;
std::vector<int> _maxScaleIndex;
RealOpenMM _dScale[5];
RealOpenMM _pScale[5];
RealOpenMM _mScale[5];
RealOpenMM _uScale[5];
int _mutualInducedDipoleConverged;
int _mutualInducedDipoleIterations;
int _maximumMutualInducedDipoleIterations;
RealOpenMM _mutualInducedDipoleEpsilon;
RealOpenMM _mutualInducedDipoleTargetEpsilon;
RealOpenMM _polarSOR;
RealOpenMM _debye;
enum QuadrupoleIndices { QXX, QXY, QXZ, QYY, QYZ, QZZ };
/**---------------------------------------------------------------------------------------
Helper constructor method to centralize initialization of objects
--------------------------------------------------------------------------------------- */
void initialize( void );
void loadParticleData( RealOpenMM** particlePositions,
const std::vector<RealOpenMM>& charges,
const std::vector<RealOpenMM>& dipoles,
const std::vector<RealOpenMM>& quadrupoles,
const std::vector<RealOpenMM>& tholes,
const std::vector<RealOpenMM>& dampingFactors,
const std::vector<RealOpenMM>& polarity,
std::vector<MultipoleParticleData>& particleData ) const;
/**---------------------------------------------------------------------------------------
Set flag indicating if mutual induced dipoles are converged
@param nonzero if converged
--------------------------------------------------------------------------------------- */
void setMutualInducedDipoleConverged( int iterations );
/**---------------------------------------------------------------------------------------
Set number of iterations used in computing mutual induced dipoles
@param number of iterations
--------------------------------------------------------------------------------------- */
void setMutualInducedDipoleIterations( int iterations );
/**---------------------------------------------------------------------------------------
Set the final epsilon for mutual induced dipoles
@param epsilon
--------------------------------------------------------------------------------------- */
void setMutualInducedDipoleEpsilon( RealOpenMM epsilon );
/**---------------------------------------------------------------------------------------
Get delta between positions of two particles
@param particleI index of particleI
@param particleJ index of particleJ
@param delta output: delta[0] = pos[particleJ][0] - pos[particleI][0], ...
--------------------------------------------------------------------------------------- */
void getDelta( unsigned int particleI, unsigned int particleJ, RealOpenMM** particlePositions, RealOpenMM* delta ) const;
/**---------------------------------------------------------------------------------------
Get delta between positions of two particles
@param particleI index of particleI
@param particleJ index of particleJ
@param delta output: delta[0] = pos[particleJ][0] - pos[particleI][0], ...
--------------------------------------------------------------------------------------- */
void getDelta( const MultipoleParticleData& particleI, const MultipoleParticleData& particleJ, RealOpenMM* delta ) const;
/**---------------------------------------------------------------------------------------
Load values from vector (dipole, quadrupoles vectors for example) into an array
@param particleI index of particleI whose values are to be loaded
@param offset offset to use (3 for dipole, 9 for quadrupole)
@param vectorToCopy vector of values to be loaded
@param loadArray on return contains loaded values
--------------------------------------------------------------------------------------- */
void loadArrayFromVector( unsigned int particleI, unsigned int offset, const std::vector<RealOpenMM>& vectorToCopy, RealOpenMM* loadArray ) const;
/**---------------------------------------------------------------------------------------
Add fields valus to vector
@param particleIOffset index of particleI times offset (3,9 for dipole. quadrupole) whose values are to be updated
@param sign if > 0, then add the field values; otherwise subtract the values
@param field field values
@param vectorToAddTo vector whose of values are to be incremented by the values in field
--------------------------------------------------------------------------------------- */
void addField( unsigned int particleIOffset, int sign, RealOpenMM field[3], std::vector<RealOpenMM>& vectorToAddTo ) const;
void logRealOpenMMVectors( const std::string& header, const VectorOfRealOpenMMVectors& printVector,
FILE* log = stderr, unsigned int itemsPerVector = 1, int maxPrint = -1 ) const;
void logParticleData( const std::string& header, const std::vector<MultipoleParticleData>& particleData,
unsigned int printFlag, FILE* log, int maxPrint ) const;
void showScaleMapForParticle( unsigned int particleI, FILE* log ) const;
/**---------------------------------------------------------------------------------------
Setup scale factors given covalent info
@param multipoleAtomCovalentInfo vector of vectors containing the covalent info
--------------------------------------------------------------------------------------- */
void setupScaleMaps( const std::vector< std::vector< std::vector<int> > >& multipoleAtomCovalentInfo );
/**---------------------------------------------------------------------------------------
Get scale factor for particleI & particleJ
@param particleI index of particleI whose scale factor is to be retreived
@param particleJ index of particleJ whose scale factor is to be retreived
@param scaleType scale type (D_SCALE, P_SCALE, M_SCAL)
@return scaleFactor
--------------------------------------------------------------------------------------- */
RealOpenMM getScaleFactor( unsigned int particleI, unsigned int particleJ, ScaleType scaleType ) const;
void getScaleFactors( unsigned int particleI, unsigned int particleJ, RealOpenMM* scaleFactors ) const;
/**---------------------------------------------------------------------------------------
Scale field for particleI & particleJ ixn
@param particleI index of particleI
@param particleJ index of particleJ
@param field field to scale
--------------------------------------------------------------------------------------- */
void getDScaleAndPScale( unsigned int particleI, unsigned int particleJ, RealOpenMM& dScale, RealOpenMM& pScale ) const;
void getAndScaleInverseRs( RealOpenMM dampI, RealOpenMM dampJ, RealOpenMM tholeI, RealOpenMM tholeJ,
RealOpenMM r, std::vector<RealOpenMM>& rrI ) const;
/**---------------------------------------------------------------------------------------
Apply roatation matrix to molecular dipole/quadrupoles to get corresponding lab frame values
for particle I
@param particleI particleI data
@param particleJ particleI data
@param axisType axis type
--------------------------------------------------------------------------------------- */
void applyRotationMatrix( MultipoleParticleData& particleI,
const MultipoleParticleData& particleZ,
const MultipoleParticleData& particleX, int axisType ) const;
void calculateFixedEFieldPairIxn( MultipoleParticleData& particleI, MultipoleParticleData& particleJ,
RealOpenMM dScale, RealOpenMM pScale ) const;
void calculateInducedDipolePairIxn( MultipoleParticleData& particleI, MultipoleParticleData& particleJ,
std::vector<RealOpenMM>& field, std::vector<RealOpenMM>& fieldPolar ) const;
void updateInducedDipole( MultipoleParticleData& particleI,
const std::vector<RealOpenMM>& field,
const std::vector<RealOpenMM>& fieldPolar,
RealOpenMM& epsilonD, RealOpenMM& epsilonP ) const;
void calculateNoCutoffInducedDipoles( std::vector<MultipoleParticleData>& particleData );
void calculateInducedDipoleField( std::vector<MultipoleParticleData>& particleData,
std::vector<RealOpenMM>& field,
std::vector<RealOpenMM>& fieldPolar ) const;
RealOpenMM calculateNoCutoffElectrostaticPairIxn( const MultipoleParticleData& particleI,
const MultipoleParticleData& particleK,
RealOpenMM* scalingFactors, RealOpenMM** forces, std::vector<Vec3>& torque ) const;
RealOpenMM calculateNoCutoffElectrostatic( std::vector<MultipoleParticleData>& particleData, RealOpenMM** forces ) const;
/**---------------------------------------------------------------------------------------
Calculate Multipole ixns w/ no cutoff
@param numParticles number of particles
@param particlePositions Cartesian coordinates of particles
@param indexIVs position index for associated reducing particle
@param indexClasses class index for combining sigmas/epsilons (not currently used)
@param sigmas particle sigmas
@param epsilons particle epsilons
@param reductions particle reduction factors
@param vdwExclusions particle exclusions
@param forces add forces to this vector
@return energy
--------------------------------------------------------------------------------------- */
RealOpenMM calculateNoCutoffForceAndEnergy( int numParticles, RealOpenMM** particlePositions,
const std::vector<RealOpenMM>& charges,
const std::vector<RealOpenMM>& dipoles,
const std::vector<RealOpenMM>& quadrupoles,
const std::vector<RealOpenMM>& tholes,
const std::vector<RealOpenMM>& dampingFactors,
const std::vector<RealOpenMM>& polarity,
const std::vector<int>& axisTypes,
const std::vector<int>& multipoleAtomId1s,
const std::vector<int>& multipoleAtomId2s,
RealOpenMM** forces );
};
// ---------------------------------------------------------------------------------------
#endif // _AmoebaReferenceMultipoleForce___
plugins/amoeba/platforms/reference/src/SimTKReference/AmoebaReferenceVdwForce.h
View file @ e20cc4f2
...@@ -164,7 +164,6 @@ public: ...@@ -164,7 +164,6 @@ public:
@param vdwExclusions particle exclusions @param vdwExclusions particle exclusions
@param forces add forces to this vector @param forces add forces to this vector
@return energy
@return energy @return energy
--------------------------------------------------------------------------------------- */ --------------------------------------------------------------------------------------- */
......
Markdown is supported
0% or .
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment