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Commit 1adaefcc authored by Mark Friedrichs's avatar Mark Friedrichs
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platforms/brook/src/BrookBonded.cpp
View file @ 1adaefcc
...@@ -45,6 +45,7 @@ using namespace std; ...@@ -45,6 +45,7 @@ using namespace std;
#define PARAMS(X,Y,Z) (params[(Y)][4*(X) + Z]) #define PARAMS(X,Y,Z) (params[(Y)][4*(X) + Z])
/** /**
*
* BrookBonded constructor * BrookBonded constructor
* *
*/ */
......
platforms/brook/src/BrookBonded.h
View file @ 1adaefcc
...@@ -49,12 +49,21 @@ class BrookBonded : public BrookCommon { ...@@ -49,12 +49,21 @@ class BrookBonded : public BrookCommon {
public: public:
static const int DefaultReturnValue = 0; /**
static const int ErrorReturnValue = -1; *
* BrookBonded constructor
*
*/
BrookBonded( ); BrookBonded( );
~BrookBonded(); /**
*
* BrookBonded desstructor
*
*/
~BrookBonded( );
/** /**
* Initialize the kernel, setting up the values of all the force field parameters. * Initialize the kernel, setting up the values of all the force field parameters.
......
platforms/brook/src/BrookCommon.cpp
View file @ 1adaefcc
...@@ -66,6 +66,13 @@ const std::string BrookCommon::ObcBornRadii2Stream ...@@ -66,6 +66,13 @@ const std::string BrookCommon::ObcBornRadii2Stream
const std::string BrookCommon::ObcIntermediateForceStream = "ObcIntermediateForceStream"; const std::string BrookCommon::ObcIntermediateForceStream = "ObcIntermediateForceStream";
const std::string BrookCommon::ObcChainStream = "ObcChainStream"; const std::string BrookCommon::ObcChainStream = "ObcChainStream";
// StochasticDynamics streams
const std::string BrookCommon::SDPC1Stream = "SDPC1Stream";
const std::string BrookCommon::SDPC2Stream = "SDPC2Stream";
const std::string BrookCommon::SD2XStream = "SD2XStream";
const std::string BrookCommon::SD1VStream = "SD1VStream";
/** /**
* Constructor * Constructor
* *
......
platforms/brook/src/BrookGbsa.h
View file @ 1adaefcc
...@@ -52,11 +52,6 @@ class BrookGbsa : public BrookCommon { ...@@ -52,11 +52,6 @@ class BrookGbsa : public BrookCommon {
public: public:
// return values
static const int DefaultReturnValue = 0;
static const int ErrorReturnValue = -1;
/** /**
* Constructor * Constructor
* *
......
platforms/brook/src/BrookIntegrateLangevinStepKernel.cpp
View file @ 1adaefcc
...@@ -83,6 +83,8 @@ void BrookIntegrateLangevinStepKernel::initialize( const vector<double>& masses, ...@@ -83,6 +83,8 @@ void BrookIntegrateLangevinStepKernel::initialize( const vector<double>& masses,
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
_brookkStochasticDynamics = new BrookStochasticDynamics( masses ); _brookkStochasticDynamics = new BrookStochasticDynamics( masses );
_brookkStochasticDynamics->setup( masses, getPlatform() );
_brookShakeAlgorithm = new BrookShakeAlgorithm( masses, constraintIndices, constraintLengths ); _brookShakeAlgorithm = new BrookShakeAlgorithm( masses, constraintIndices, constraintLengths );
/* /*
this->masses = new RealOpenMM[masses.size()]; this->masses = new RealOpenMM[masses.size()];
......
platforms/brook/src/BrookNonBonded.h
View file @ 1adaefcc
...@@ -49,11 +49,6 @@ class BrookNonBonded : public BrookCommon { ...@@ -49,11 +49,6 @@ class BrookNonBonded : public BrookCommon {
public: public:
// return values
static const int DefaultReturnValue = 0;
static const int ErrorReturnValue = -1;
BrookNonBonded( ); BrookNonBonded( );
~BrookNonBonded(); ~BrookNonBonded();
......
platforms/brook/src/BrookStochasticDynamics.cpp
View file @ 1adaefcc
...@@ -43,21 +43,27 @@ using namespace OpenMM; ...@@ -43,21 +43,27 @@ using namespace OpenMM;
using namespace std; using namespace std;
/** /**
*
* Constructor * Constructor
* *
* @param masses atomic masses
*/ */
BrookStochasticDynamics::BrookStochasticDynamics( const std::vector<double>& masses, uint32_t randomNumberSeed ){ BrookStochasticDynamics::BrookStochasticDynamics( ){
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
static const std::string methodName = "BrookStochasticDynamics::BrookStochasticDynamics"; static const std::string methodName = "BrookStochasticDynamics::BrookStochasticDynamics";
BrookOpenMMFloat zero = (BrookOpenMMFloat) 0.0; BrookOpenMMFloat zero = (BrookOpenMMFloat) 0.0;
BrookOpenMMFloat one = (BrookOpenMMFloat) 1.0; BrookOpenMMFloat one = (BrookOpenMMFloat) 1.0;
BrookOpenMMFloat oneMinus = (BrookOpenMMFloat) -1.0;
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
_numberOfAtoms = -1;
// mark stream dimension variables as unset
_sdAtomStreamWidth = -1; _sdAtomStreamWidth = -1;
_sdAtomStreamHeight = -1; _sdAtomStreamHeight = -1;
_sdAtomStreamSize = -1; _sdAtomStreamSize = -1;
...@@ -66,22 +72,20 @@ BrookStochasticDynamics::BrookStochasticDynamics( const std::vector<double>& mas ...@@ -66,22 +72,20 @@ BrookStochasticDynamics::BrookStochasticDynamics( const std::vector<double>& mas
_sdStreams[ii] = NULL; _sdStreams[ii] = NULL;
} }
// setup inverse masses for( int ii = 0; ii < MaxDerivedParameters; ii++ ){
_derivedParameters[ii] = oneMinus;
_inverseMasses = new std::vector<BrookOpenMMFloat>;
for( std::vector<double>::const_interator ii = masses.begin(); ii != masses.end(); ii++ ){
if( *ii != 0.0 ){
_inverseMasses->push_back( SQRT( one/(*ii) ) );
} else {
_inverseMasses->push_back( zero );
}
} }
// randomNumberSeed _temperature = _stepSize = _tau = oneMinus;
if( randomNumberSeed ){ // setup inverse sqrt masses
SimTKOpenMMUtilities::setRandomNumberSeed( randomNumberSeed );
} _inverseSqrtMasses = NULL;
// set randomNumber seed
//_randomNumberSeed = randomNumberSeed ? randomNumberSeed : 1393;
//SimTKOpenMMUtilities::setRandomNumberSeed( randomNumberSeed );
} }
/** /**
...@@ -101,96 +105,111 @@ BrookStochasticDynamics::~BrookStochasticDynamics( ){ ...@@ -101,96 +105,111 @@ BrookStochasticDynamics::~BrookStochasticDynamics( ){
delete _sdStreams[ii]; delete _sdStreams[ii];
} }
delete _inverseMasses; delete[] _inverseSqrtMasses;
} }
/** /**
* Update fixed parameters * Get tau
* *
* @return DefaultReturn * @return tau
* *
*/ */
int BrookStochasticDynamics::_updateFixedParameters( void ){ BrookOpenMMFloat BrookStochasticDynamics::getTau( void ) const {
return _tau;
// --------------------------------------------------------------------------------------- }
// static const char* methodName = "\nBrookStochasticDynamics::updateFixedParameters";
static const BrookOpenMMFloat zero = 0.0;
static const BrookOpenMMFloat one = 1.0;
static const BrookOpenMMFloat two = 2.0;
static const BrookOpenMMFloat three = 3.0;
static const BrookOpenMMFloat four = 4.0;
static const BrookOpenMMFloat half = 0.5;
// ---------------------------------------------------------------------------------------
setStepSize( stepSize );
setFriction( friction );
setTemperature( temperature );
_fixedParameters[GDT] = getDeltaT()/getTau();
_fixedParameters[EPH] = EXP( half*_fixedParameters[GDT] );
_fixedParameters[EMH] = EXP( -half*_fixedParameters[GDT] );
_fixedParameters[EM] = EXP( -_fixedParameters[GDT] );
_fixedParameters[EP] = EXP( _fixedParameters[GDT] );
if( _fixedParameters[GDT] >= (BrookOpenMMFloat) 0.1 ){ /**
* Get temperature
*
* @return temperature
*
*/
BrookOpenMMFloat term1 = _fixedParameters[EPH] - one; BrookOpenMMFloat BrookStochasticDynamics::getTemperature( void ) const {
term1 *= term1; return _temperature;
_fixedParameters[B] = _fixedParameters[GDT]*(_fixedParameters[EP] - one) - four*term1; }
_fixedParameters[C] = _fixedParameters[GDT] - three + four*_fixedParameters[EMH] - _fixedParameters[EM]; /**
_fixedParameters[D] = two - _fixedParameters[EPH] - _fixedParameters[EMH]; * Get stepSize
*
* @return stepSize
*
*/
} else { BrookOpenMMFloat BrookStochasticDynamics::getStepSize( void ) const {
return _stepSize;
}
// this has not been debugged /**
* Set tau
*
* @param tau new tau value
*
* @return DefaultReturn
*
*/
BrookOpenMMFloat term1 = half*_fixedParameters[GDT]; int BrookStochasticDynamics::_setTau( BrookOpenMMFloat tau ){
BrookOpenMMFloat term2 = term1*term1; _tau = tau;
BrookOpenMMFloat term4 = term2*term2; return DefaultReturn;
}
BrookOpenMMFloat third = (RealOpenMM) ( 1.0/3.0 ); /**
BrookOpenMMFloat o7_9 = (RealOpenMM) ( 7.0/9.0 ); * Set friction = 1/tau
BrookOpenMMFloat o1_12 = (RealOpenMM) ( 1.0/12.0 ); *
BrookOpenMMFloat o17_90 = (RealOpenMM) ( 17.0/90.0 ); * @param friction new friction value
BrookOpenMMFloat o7_30 = (RealOpenMM) ( 7.0/30.0 ); *
BrookOpenMMFloat o31_1260 = (RealOpenMM) ( 31.0/1260.0 ); * @return DefaultReturn
BrookOpenMMFloat o_360 = (RealOpenMM) ( 1.0/360.0 ); *
*/
_fixedParameters[B] = term4*( third + term1*( third + term1*( o17_90 + term1*o7_9 )));
_fixedParameters[C] = term2*term1*( two*third + term1*( -half + term1*( o7_30 + term1*(-o1_12 + term1*o31_1260 ))));
_fixedParameters[D] = term2*( -one + term2*(-o1_12 - term2*o_360));
}
RealOpenMM kT = ((RealOpenMM) BOLTZ)*getTemperature(); int BrookStochasticDynamics::_setFriction( BrookOpenMMFloat friction ){
_tau = (BrookOpenMMFloat) ( (friction != 0.0) ? 1.0/friction : 0.0);
return DefaultReturn;
}
_fixedParameters[V] = SQRT( kT*( one - _fixedParameters[EM]) ); /**
_fixedParameters[X] = getTau()*SQRT( kT*_fixedParameters[C] ); * Set temperature
_fixedParameters[Yv] = SQRT( kT*_fixedParameters[B]/_fixedParameters[C] ); *
_fixedParameters[Yx] = getTau()*SQRT( kT*_fixedParameters[B]/(one - _fixedParameters[EM]) ); * @parameter temperature
*
* @return DefaultReturn
*
*/
int BrookStochasticDynamics::_setTemperature( BrookOpenMMFloat temperature ){
_temperature = temperature;
return DefaultReturn; return DefaultReturn;
}
}; /**
* Set stepSize
*
* @param stepSize
*
* @return DefaultReturn
*
*/
int BrookStochasticDynamics::_setStepSize( BrookOpenMMFloat stepSize ){
_stepSize = stepSize;
return DefaultReturn;
}
/** /**
* Update fixed parameters * Update derived parameters
* *
* @return DefaultReturn * @return DefaultReturn
* *
*/ */
int BrookStochasticDynamics::_updateSdStreams( void ){ int BrookStochasticDynamics::_updateDerivedParameters( void ){
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
// static const char* methodName = "\nBrookStochasticDynamics::updateFixedParameters"; // static const char* methodName = "\nBrookStochasticDynamics::_updateDerivedParameters";
static const BrookOpenMMFloat zero = 0.0; static const BrookOpenMMFloat zero = 0.0;
static const BrookOpenMMFloat one = 1.0; static const BrookOpenMMFloat one = 1.0;
...@@ -201,16 +220,68 @@ int BrookStochasticDynamics::_updateSdStreams( void ){ ...@@ -201,16 +220,68 @@ int BrookStochasticDynamics::_updateSdStreams( void ){
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
BrookOpenMMFloat tau = getTau();
BrookOpenMMFloat temperature = getTemperature();
BrookOpenMMFloat stepSize = getStepSize();
_derivedParameters[GDT] = stepSize/tau;
_derivedParameters[EPH] = EXP( half*_derivedParameters[GDT] );
_derivedParameters[EMH] = EXP( -half*_derivedParameters[GDT] );
_derivedParameters[EM] = EXP( -_derivedParameters[GDT] );
_derivedParameters[EP] = EXP( _derivedParameters[GDT] );
if( _derivedParameters[GDT] >= (BrookOpenMMFloat) 0.1 ){
BrookOpenMMFloat term1 = _derivedParameters[EPH] - one;
term1 *= term1;
_derivedParameters[B] = _derivedParameters[GDT]*(_derivedParameters[EP] - one) - four*term1;
_derivedParameters[C] = _derivedParameters[GDT] - three + four*_derivedParameters[EMH] - _derivedParameters[EM];
_derivedParameters[D] = two - _derivedParameters[EPH] - _derivedParameters[EMH];
} else {
BrookOpenMMFloat term1 = half*_derivedParameters[GDT];
BrookOpenMMFloat term2 = term1*term1;
BrookOpenMMFloat term4 = term2*term2;
BrookOpenMMFloat third = (BrookOpenMMFloat) ( 1.0/3.0 );
BrookOpenMMFloat o7_9 = (BrookOpenMMFloat) ( 7.0/9.0 );
BrookOpenMMFloat o1_12 = (BrookOpenMMFloat) ( 1.0/12.0 );
BrookOpenMMFloat o17_90 = (BrookOpenMMFloat) ( 17.0/90.0 );
BrookOpenMMFloat o7_30 = (BrookOpenMMFloat) ( 7.0/30.0 );
BrookOpenMMFloat o31_1260 = (BrookOpenMMFloat) ( 31.0/1260.0 );
BrookOpenMMFloat o_360 = (BrookOpenMMFloat) ( 1.0/360.0 );
_derivedParameters[B] = term4*( third + term1*( third + term1*( o17_90 + term1*o7_9 )));
_derivedParameters[C] = term2*term1*( two*third + term1*( -half + term1*( o7_30 + term1*(-o1_12 + term1*o31_1260 ))));
_derivedParameters[D] = term2*( -one + term2*(-o1_12 - term2*o_360));
}
BrookOpenMMFloat kT = ((BrookOpenMMFloat) BOLTZ)*temperature;
_derivedParameters[V] = SQRT( kT*( one - _derivedParameters[EM]) );
_derivedParameters[X] = tau*SQRT( kT*_derivedParameters[C] );
_derivedParameters[Yv] = SQRT( kT*_derivedParameters[B]/_derivedParameters[C] );
_derivedParameters[Yx] = tau*SQRT( kT*_derivedParameters[B]/(one - _derivedParameters[EM]) );
_derivedParameters[Sd1pc1] = tau*( one - _derivedParameters[EM] );
_derivedParameters[Sd1pc2] = tau*( _derivedParameters[EPH] - _derivedParameters[EMH] );
_derivedParameters[Sd1pc3] = _derivedParameters[D]/(tau*_derivedParameters[C] );
_derivedParameters[Sd2pc1] = one/_derivedParameters[Sd1pc2];
_derivedParameters[Sd2pc2] = tau*_derivedParameters[D]/( _derivedParameters[EM] - one );
return DefaultReturn; return DefaultReturn;
}; };
/** /**
* Update parameters * Update parameters -- only way parameters can be set
* *
* @param temperature temperature * @param temperature temperature
* @param friction friction * @param friction friction
* @param step size step size
* *
* @return solute dielectric * @return solute dielectric
* *
...@@ -224,11 +295,11 @@ int BrookStochasticDynamics::updateParameters( double temperature, double fricti ...@@ -224,11 +295,11 @@ int BrookStochasticDynamics::updateParameters( double temperature, double fricti
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
setStepSize( stepSize ); _setStepSize( stepSize );
setFriction( friction ); _setFriction( friction );
setTemperature( temperature ); _setTemperature( temperature );
_updateFixedParameters( ); _updateDerivedParameters( );
_updateSdStreams( ); _updateSdStreams( );
return DefaultReturn; return DefaultReturn;
...@@ -237,40 +308,21 @@ int BrookStochasticDynamics::updateParameters( double temperature, double fricti ...@@ -237,40 +308,21 @@ int BrookStochasticDynamics::updateParameters( double temperature, double fricti
/**--------------------------------------------------------------------------------------- /**---------------------------------------------------------------------------------------
Get tau Get array of derived parameters indexed by 'DerivedParameters' enums
@return tau
--------------------------------------------------------------------------------------- */
RealOpenMM BrookStochasticDynamics::getTau( void ) const {
// ---------------------------------------------------------------------------------------
// static const char* methodName = "\nBrookStochasticDynamics::getTau";
// ---------------------------------------------------------------------------------------
return _tau;
}
/**---------------------------------------------------------------------------------------
Get array of fixed parameters indexed by 'FixedParameters' enums
@return array @return array
--------------------------------------------------------------------------------------- */ --------------------------------------------------------------------------------------- */
const RealOpenMM* BrookStochasticDynamics::getFixedParameters( void ) const { const BrookOpenMMFloat* BrookStochasticDynamics::getDerivedParameters( void ) const {
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
// static const char* methodName = "\nBrookStochasticDynamics::getFixedParameters"; // static const char* methodName = "\nBrookStochasticDynamics::getDerivedParameters";
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
return _fixedParameters; return _derivedParameters;
} }
/** /**
...@@ -359,11 +411,11 @@ BrookFloatStreamInternal* BrookStochasticDynamics::getSD1V( void ) const { ...@@ -359,11 +411,11 @@ BrookFloatStreamInternal* BrookStochasticDynamics::getSD1V( void ) const {
* *
*/ */
int BrookStochasticDynamics::initializeStreamSizes( int numberOfAtoms, const Platform& platform ){ int BrookStochasticDynamics::_initializeStreamSizes( int numberOfAtoms, const Platform& platform ){
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
static const std::string methodName = "BrookStochasticDynamics::initializeStreamSizes"; //static const std::string methodName = "BrookStochasticDynamics::_initializeStreamSizes";
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
...@@ -374,6 +426,104 @@ int BrookStochasticDynamics::initializeStreamSizes( int numberOfAtoms, const Pla ...@@ -374,6 +426,104 @@ int BrookStochasticDynamics::initializeStreamSizes( int numberOfAtoms, const Pla
return DefaultReturnValue; return DefaultReturnValue;
} }
/**
* Initialize stream dimensions
*
* @param numberOfAtoms number of atoms
* @param platform platform
*
* @return ErrorReturnValue if error, else DefaultReturnValue
*
*/
std::string BrookStochasticDynamics::_getDerivedParametersString( BrookStochasticDynamics::DerivedParameters derivedParametersIndex ) const {
// ---------------------------------------------------------------------------------------
//static const std::string methodName = "BrookStochasticDynamics::_getDerivedParametersString";
// ---------------------------------------------------------------------------------------
std::string returnString;
switch( derivedParametersIndex ){
case GDT:
returnString = "GDT";
break;
case EPH:
returnString = "EPH";
break;
case EMH:
returnString = "EMH";
break;
case EP:
returnString = "EP";
break;
case EM:
returnString = "EM";
break;
case B:
returnString = "B";
break;
case C:
returnString = "C";
break;
case D:
returnString = "D";
break;
case V:
returnString = "V";
break;
case X:
returnString = "X";
break;
case Yv:
returnString = "Yv";
break;
case Yx:
returnString = "Yx";
break;
case Sd1pc1:
returnString = "Sd1pc1";
break;
case Sd1pc2:
returnString = "Sd1pc2";
break;
case Sd1pc3:
returnString = "Sd1pc3";
break;
case Sd2pc1:
returnString = "Sd2pc1";
break;
case Sd2pc2:
returnString = "Sd2pc2";
break;
default:
returnString = "Unknown";
break;
}
return returnString;
}
/** /**
* Initialize streams * Initialize streams
* *
...@@ -383,12 +533,11 @@ int BrookStochasticDynamics::initializeStreamSizes( int numberOfAtoms, const Pla ...@@ -383,12 +533,11 @@ int BrookStochasticDynamics::initializeStreamSizes( int numberOfAtoms, const Pla
* *
*/ */
int BrookStochasticDynamics::initializeStreams( const Platform& platform ){ int BrookStochasticDynamics::_initializeStreams( const Platform& platform ){
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
static const std::string methodName = "BrookStochasticDynamics::initializeStreams"; //static const std::string methodName = "BrookStochasticDynamics::_initializeStreams";
static const double dangleValue = 0.0;
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
...@@ -407,7 +556,7 @@ int BrookStochasticDynamics::initializeStreams( const Platform& platform ){ ...@@ -407,7 +556,7 @@ int BrookStochasticDynamics::initializeStreams( const Platform& platform ){
sdAtomStreamSize, sdAtomStreamWidth, sdAtomStreamSize, sdAtomStreamWidth,
BrookStreamInternal::Float3, dangleValue ); BrookStreamInternal::Float3, dangleValue );
_sdStreams[ObcBornRadiiStream] = new BrookFloatStreamInternal( BrookCommon::SD1VStream, _sdStreams[SD1VStream] = new BrookFloatStreamInternal( BrookCommon::SD1VStream,
sdAtomStreamSize, sdAtomStreamWidth, sdAtomStreamSize, sdAtomStreamWidth,
BrookStreamInternal::Float3, dangleValue ); BrookStreamInternal::Float3, dangleValue );
...@@ -425,8 +574,7 @@ int BrookStochasticDynamics::_updateSdStreams( void ){ ...@@ -425,8 +574,7 @@ int BrookStochasticDynamics::_updateSdStreams( void ){
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
static const std::string methodName = "BrookStochasticDynamics::updateSdStreams"; static const std::string methodName = "BrookStochasticDynamics::_updateSdStreams";
static const double dangleValue = 0.0;
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
...@@ -438,16 +586,16 @@ int BrookStochasticDynamics::_updateSdStreams( void ){ ...@@ -438,16 +586,16 @@ int BrookStochasticDynamics::_updateSdStreams( void ){
memset( sdpc[ii], 0, 2*sdAtomStreamSize*sizeof( BrookOpenMMFloat ) ); memset( sdpc[ii], 0, 2*sdAtomStreamSize*sizeof( BrookOpenMMFloat ) );
} }
const RealOpenMM* fixedParameters = getFixedParameters( ); const BrookOpenMMFloat* derivedParameters = getDerivedParameters( );
int numberOfAtoms = getNumberOfAtoms(); int numberOfAtoms = getNumberOfAtoms();
int index = 0; int index = 0;
for( int ii = 0; ii < numberOfAtoms; ii++ ){ for( int ii = 0; ii < numberOfAtoms; ii++ ){
sdpc[0][index] = _inverseMasses[ii]*( static_cast<BrookOpenMMFloat> (fixedParameters[Yv]) ); sdpc[0][index] = _inverseSqrtMasses[ii]*( static_cast<BrookOpenMMFloat> (derivedParameters[Yv]) );
sdpc[0][index+1] = _inverseMasses[ii]*( static_cast<BrookOpenMMFloat> (fixedParameters[V]) ); sdpc[0][index+1] = _inverseSqrtMasses[ii]*( static_cast<BrookOpenMMFloat> (derivedParameters[V]) );
sdpc[1][index] = _inverseMasses[ii]*( static_cast<BrookOpenMMFloat> (fixedParameters[Yx]) ); sdpc[1][index] = _inverseSqrtMasses[ii]*( static_cast<BrookOpenMMFloat> (derivedParameters[Yx]) );
sdpc[1][index+1] = _inverseMasses[ii]*( static_cast<BrookOpenMMFloat> (fixedParameters[X]) ); sdpc[1][index+1] = _inverseSqrtMasses[ii]*( static_cast<BrookOpenMMFloat> (derivedParameters[X]) );
index += 2; index += 2;
} }
...@@ -467,9 +615,9 @@ int BrookStochasticDynamics::_updateSdStreams( void ){ ...@@ -467,9 +615,9 @@ int BrookStochasticDynamics::_updateSdStreams( void ){
memset( sd2x, 0, 3*sdAtomStreamSize*sizeof( BrookOpenMMFloat ) ); memset( sd2x, 0, 3*sdAtomStreamSize*sizeof( BrookOpenMMFloat ) );
for( int ii = 0; ii < numberOfAtoms; ii++ ){ for( int ii = 0; ii < numberOfAtoms; ii++ ){
sd2x[index] = _inverseMasses[ii]*fixedParameters[X]*( static_cast<BrookOpenMMFloat> (SimTKOpenMMUtilities::getNormallyDistributedRandomNumber()) ); sd2x[index] = _inverseSqrtMasses[ii]*derivedParameters[X]*( static_cast<BrookOpenMMFloat> (SimTKOpenMMUtilities::getNormallyDistributedRandomNumber()) );
sd2x[index+1] = _inverseMasses[ii]*fixedParameters[X]*( static_cast<BrookOpenMMFloat> (SimTKOpenMMUtilities::getNormallyDistributedRandomNumber()) ); sd2x[index+1] = _inverseSqrtMasses[ii]*derivedParameters[X]*( static_cast<BrookOpenMMFloat> (SimTKOpenMMUtilities::getNormallyDistributedRandomNumber()) );
sd2x[index+2] = _inverseMasses[ii]*fixedParameters[X]*( static_cast<BrookOpenMMFloat> (SimTKOpenMMUtilities::getNormallyDistributedRandomNumber()) ); sd2x[index+2] = _inverseSqrtMasses[ii]*derivedParameters[X]*( static_cast<BrookOpenMMFloat> (SimTKOpenMMUtilities::getNormallyDistributedRandomNumber()) );
} }
_sdStreams[SD2XStream]->loadFromArray( sd2x ); _sdStreams[SD2XStream]->loadFromArray( sd2x );
...@@ -480,118 +628,58 @@ int BrookStochasticDynamics::_updateSdStreams( void ){ ...@@ -480,118 +628,58 @@ int BrookStochasticDynamics::_updateSdStreams( void ){
} }
/* /**
* Setup of StochasticDynamics parameters * Set masses
*
* @param atomParameters vector of OBC parameters [atomI][0=charge]
* [atomI][1=radius]
* [atomI][2=scaling factor]
* @param solventDielectric solvent dielectric
* @param soluteDielectric solute dielectric
* @param platform Brook platform
* *
* @return nonzero value if error * @param masses atomic masses
* *
* */ */
int BrookStochasticDynamics::setup( const std::vector<std::vector<double> >& vectorOfAtomParameters, int BrookStochasticDynamics::_setInverseSqrtMasses( const std::vector<double>& masses ){
double solventDielectric, double soluteDielectric, const Platform& platform ){
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
static const int atomParametersSize = 4; static const std::string methodName = "BrookStochasticDynamics::_setInverseSqrtMasses";
static const int maxErrors = 20;
static const std::string methodName = "BrookStochasticDynamics::setup";
// --------------------------------------------------------------------------------------- // ---------------------------------------------------------------------------------------
int numberOfAtoms = (int) vectorOfAtomParameters.size(); // setup inverse sqrt masses
setNumberOfAtoms( numberOfAtoms );
_solventDielectric = solventDielectric;
_soluteDielectric = soluteDielectric;
// initialize stream sizes and then Brook streams
initializeStreamSizes( numberOfAtoms, platform );
initializeStreams( platform );
BrookOpenMMFloat* radiiAndCharge = new BrookOpenMMFloat[getNumberOfAtoms()*2]; _inverseSqrtMasses = new BrookOpenMMFloat[masses.size()];
BrookOpenMMFloat* scaledRadiiAndOffset = new BrookOpenMMFloat[getNumberOfAtoms()*2]; int index = 0;
for( std::vector<double>::const_interator ii = masses.begin(); ii != masses.end(); ii++, index++ ){
// used by CpuObc to calculate initial Born radii if( *ii != 0.0 ){
_inverseSqrtMasses[index] = ( SQRT( one/(*ii) ) );
vector<RealOpenMM> atomicRadii(numberOfAtoms);
vector<RealOpenMM> scaleFactors(numberOfAtoms);
float dielectricOffset = getDielectricOffset();
// loop over atom parameters
// track any errors and then throw exception
// check parameter vector is right size
// set parameter entries or board and arrays used by CpuObc
int vectorIndex = 0;
int errors = 0;
std::stringstream message;
typedef std::vector< std::vector<double> > VectorOfDoubleVectors;
typedef VectorOfDoubleVectors::const_iterator VectorOfDoubleVectorsCI;
for( VectorOfDoubleVectorsCI ii = vectorOfAtomParameters.begin(); ii != vectorOfAtomParameters.end(); ii++ ){
std::vector<double> atomParameters = *ii;
if( atomParameters.size() != atomParametersSize && errors < maxErrors ){
message << methodName << " parameter size=" << atomParameters.size() << " for parameter vector index=" << vectorIndex << " is less than expected.\n";
errors++;
} else { } else {
_inverseSqrtMasses[index] = zero;
double charge = atomParameters[0];
double radius = atomParameters[1];
double scalingFactor = atomParameters[2];
int streamIndex = 2*vectorIndex;
atomicRadii[vectorIndex] = static_cast<RealOpenMM> (radius);
scaleFactors[vectorIndex] = static_cast<RealOpenMM> (scalingFactor);
radiiAndCharge[streamIndex] = static_cast<BrookOpenMMFloat> (radius);
radiiAndCharge[streamIndex+1] = static_cast<BrookOpenMMFloat> (charge);
scaledRadiiAndOffset[streamIndex] = static_cast<BrookOpenMMFloat> (radius*scalingFactor);
scaledRadiiAndOffset[streamIndex+1] = static_cast<BrookOpenMMFloat> (radius - dielectricOffset);
} }
vectorIndex++;
} }
// throw exception if errors detected return DefaultReturnValue;
}
if( errors ){
throw OpenMMException( message.str() );
}
// load streams /*
* Setup of StochasticDynamics parameters
*
* @param masses masses
* @param platform Brook platform
*
* @return nonzero value if error
*
* */
_sdStreams[ObcAtomicRadiiStream]->loadFromArray( radiiAndCharge ); int BrookStochasticDynamics::setup( const std::vector<<double> >& masses, const Platform& platform ){
_sdStreams[ObcScaledAtomicRadiiStream]->loadFromArray( scaledRadiiAndOffset );
delete[] radiiAndCharge; // ---------------------------------------------------------------------------------------
delete[] scaledRadiiAndOffset;
// setup for Born radii static const std::string methodName = "BrookStochasticDynamics::setup";
ObcParameters* obcParameters = new ObcParameters( numberOfAtoms, ObcParameters::ObcTypeII ); // ---------------------------------------------------------------------------------------
obcParameters->setAtomicRadii( atomicRadii, SimTKOpenMMCommon::MdUnits);
obcParameters->setScaledRadiusFactors( scaleFactors ); int numberOfAtoms = (int) masses.size();
obcParameters->setSolventDielectric( static_cast<RealOpenMM>(solventDielectric) ); setNumberOfAtoms( numberOfAtoms );
obcParameters->setSoluteDielectric( static_cast<RealOpenMM>(soluteDielectric) );
_cpuObc = new CpuObc(obcParameters); _setInverseSqrtMasses( masses );
_cpuObc->setIncludeAceApproximation( true );
return DefaultReturnValue; return DefaultReturnValue;
} }
......
platforms/brook/src/BrookStochasticDynamics.h
View file @ 1adaefcc
...@@ -51,17 +51,15 @@ class BrookStochasticDynamics : public BrookCommon { ...@@ -51,17 +51,15 @@ class BrookStochasticDynamics : public BrookCommon {
public: public:
// return values
static const int DefaultReturnValue = 0;
static const int ErrorReturnValue = -1;
/** /**
* Constructor * Constructor
* *
* @param masses atomic masses
* @param randomNumberSeed random number seed
*
*/ */
BrookStochasticDynamics( ); BrookStochasticDynamics( const std::vector<double>& masses, uint32_t randomNumberSeed = 1364 );
/** /**
* Destructor * Destructor
...@@ -70,6 +68,30 @@ class BrookStochasticDynamics : public BrookCommon { ...@@ -70,6 +68,30 @@ class BrookStochasticDynamics : public BrookCommon {
~BrookStochasticDynamics(); ~BrookStochasticDynamics();
/**
* Get tau
*
* @return tau
*/
BrookOpenMMFloat getTau( void ) const;
/**
* Get temperature
*
* @return temperature
*/
BrookOpenMMFloat getTemperature( void ) const;
/**
* Get step size
*
* @return step size
*/
BrookOpenMMFloat getStepSize( void ) const;
/** /**
* Get StochasticDynamics atom stream width * Get StochasticDynamics atom stream width
* *
...@@ -143,13 +165,48 @@ class BrookStochasticDynamics : public BrookCommon { ...@@ -143,13 +165,48 @@ class BrookStochasticDynamics : public BrookCommon {
std::string getContentsString( int level = 0 ) const; std::string getContentsString( int level = 0 ) const;
/**
* Get SDPC1 stream
*
* @return SDPC1 stream
*
*/
BrookFloatStreamInternal* getSDPC1( void ) const;
/**
* Get SDPC2 stream
*
* @return SDPC2 stream
*
*/
BrookFloatStreamInternal* getSDPC2( void ) const;
/**
* Get SD2X stream
*
* @return SD2X stream
*
*/
BrookFloatStreamInternal* getSD2X( void ) const;
/**
* Get SD1V stream
*
* @return SD1V stream
*
*/
BrookFloatStreamInternal* getSD1V( void ) const;
private: private:
enum FixedParameters { GDT, EPH, EMH, EP, EM, B, C, D, V, X, Yv, Yx, MaxFixedParameters }; enum DerivedParameters { GDT, EPH, EMH, EP, EM, B, C, D, V, X, Yv, Yx,
enum TwoDArrayIndicies { X2D, V2D, OldV, xPrime2D, vPrime2D, Max2DArrays }; Sd1pc1, Sd1pc2, Sd1pc3, Sd2pc1, Sd2pc2, MaxDerivedParameters };
enum OneDArrayIndicies { InverseMasses, Max1DArrays };
RealOpenMM _fixedParameters[MaxFixedParameters]; BrookOpenMMFloat _derivedParameters[MaxDerivedParameters];
// streams indices // streams indices
...@@ -161,20 +218,99 @@ class BrookStochasticDynamics : public BrookCommon { ...@@ -161,20 +218,99 @@ class BrookStochasticDynamics : public BrookCommon {
LastStreamIndex LastStreamIndex
}; };
// randomNumberSeed
uint32_t _randomNumberSeed;
BrookOpenMMFloat _tau;
BrookOpenMMFloat _temperature;
BrookOpenMMFloat _stepSize;
// Atom stream dimensions // Atom stream dimensions
int _sdAtomStreamWidth; int _sdAtomStreamWidth;
int _sdAtomStreamHeight; int _sdAtomStreamHeight;
int _sdAtomStreamSize; int _sdAtomStreamSize;
// inverse masses /**
* Get derived parameter string
*
* @return string
*
*/
vector<BrookOpenMMFloat>& _inverseMasses; std::string _getDerivedParametersString( BrookStochasticDynamics::DerivedParameters ) const;
/**
* Update derived parameters
*
* @return DefaultReturn
*
*/
int _updateDerivedParameters( void );
/*
* Update streams
*
* @return DefaultReturn
*
*/
int _updateSdStreams( void );
// inverse sqrt masses
BrookOpenMMFloat* _inverseSqrtMasses;
// internal streams // internal streams
BrookFloatStreamInternal* _sdStreams[LastStreamIndex]; BrookFloatStreamInternal* _sdStreams[LastStreamIndex];
/**
* Set tau
*
* @param tau new tau value
*
* @return DefaultReturn
*
*/
int _setTau( BrookOpenMMFloat tau );
/**
* Set friction = 1/tau
*
* @param friction new friction value
*
* @return DefaultReturn
*
*/
int _setFriction( BrookOpenMMFloat friction );
/**
* Set temperature
*
* @parameter temperature
*
* @return DefaultReturn
*
*/
int _setTemperature( BrookOpenMMFloat temperature );
/**
* Set stepSize
*
* @param stepSize
*
* @return DefaultReturn
*
*/
int _setStepSize( BrookOpenMMFloat stepSize );
/* /*
* Setup of stream dimensions * Setup of stream dimensions
* *
...@@ -185,7 +321,7 @@ class BrookStochasticDynamics : public BrookCommon { ...@@ -185,7 +321,7 @@ class BrookStochasticDynamics : public BrookCommon {
* *
* */ * */
int initializeStreamSizes( int atomStreamSize, int atomStreamWidth ); int _initializeStreamSizes( int atomStreamSize, int atomStreamWidth );
/** /**
* Initialize stream dimensions * Initialize stream dimensions
...@@ -197,7 +333,7 @@ class BrookStochasticDynamics : public BrookCommon { ...@@ -197,7 +333,7 @@ class BrookStochasticDynamics : public BrookCommon {
* *
*/ */
int initializeStreamSizes( int numberOfAtoms, const Platform& platform ); int _initializeStreamSizes( int numberOfAtoms, const Platform& platform );
/** /**
* Initialize stream dimensions and streams * Initialize stream dimensions and streams
...@@ -208,7 +344,18 @@ class BrookStochasticDynamics : public BrookCommon { ...@@ -208,7 +344,18 @@ class BrookStochasticDynamics : public BrookCommon {
* *
*/ */
int initializeStreams( const Platform& platform ); int _initializeStreams( const Platform& platform );
/**
* Set masses
*
* @param masses atomic masses
*
*/
int _setInverseSqrtMasses( const std::vector<double>& masses );
}; };
......
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