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Commit 68fd08c3 authored by Peter Eastman's avatar Peter Eastman
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Bug fixes to PME reciprocal space calculation

parent b1712e10
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Showing with 61 additions and 57 deletions
plugins/amoeba/platforms/cuda/src/kernels/AmoebaGpu.cpp
View file @ 68fd08c3
......@@ -2226,6 +2226,8 @@ void gpuSetAmoebaPMEParameters(amoebaGpuContext amoebaGpu, float alpha, int grid
amoebaGpu->amoebaSim.pPhip = amoebaGpu->psPhip->_pDevData;
amoebaGpu->psPhidp = new CUDAStream<float>(20*gpu->natoms, 1, "phidp");
amoebaGpu->amoebaSim.pPhidp = amoebaGpu->psPhidp->_pDevData;
gpu->psPmeAtomRange = new CUDAStream<int>(gridSize.x*gridSize.y*gridSize.z+1, 1, "PmeAtomRange");
gpu->sim.pPmeAtomRange = gpu->psPmeAtomRange->_pDevData;
gpu->psPmeAtomGridIndex = new CUDAStream<int2>(gpu->natoms, 1, "PmeAtomGridIndex");
gpu->sim.pPmeAtomGridIndex = gpu->psPmeAtomGridIndex->_pDevData;
gpu->psPmeBsplineTheta = new CUDAStream<float4>(1, 1, "PmeBsplineTheta"); // Not actually uesd
......@@ -2305,6 +2307,7 @@ void gpuSetAmoebaPMEParameters(amoebaGpuContext amoebaGpu, float alpha, int grid
}
bsmod[i-1] = bsmod[i-1]*zeta*zeta;
}
gpu->psPmeBsplineModuli[dim]->Upload();
}
}
......
plugins/amoeba/platforms/cuda/src/kernels/amoebaCudaKernels.h
View file @ 68fd08c3
......@@ -160,6 +160,7 @@ extern void trackMutualInducedIterations( amoebaGpuContext amoebaGpu, int iterat
// PME
extern void SetCalculateAmoebaPMESim( amoebaGpuContext amoebaGpu );
extern void kCalculateAmoebaPME(amoebaGpuContext amoebaGpu);
#endif //__AMOEBA_GPU_TYPES_H__
plugins/amoeba/platforms/cuda/src/kernels/kCalculateAmoebaCudaPME.cu
View file @ 68fd08c3
......@@ -93,7 +93,7 @@ __device__ void computeBSplinePoint(float4* thetai, float w, float* array)
// copy coefficients from temporary to permanent storage
for (int i = 1; i <= AMOEBA_PME_ORDER; i++)
thetai[i] = make_float4(ARRAY(AMOEBA_PME_ORDER,i), ARRAY(AMOEBA_PME_ORDER-1,i), ARRAY(AMOEBA_PME_ORDER-2,i), ARRAY(AMOEBA_PME_ORDER-3,i));
thetai[i-1] = make_float4(ARRAY(AMOEBA_PME_ORDER,i), ARRAY(AMOEBA_PME_ORDER-1,i), ARRAY(AMOEBA_PME_ORDER-2,i), ARRAY(AMOEBA_PME_ORDER-3,i));
}
/**
......@@ -197,15 +197,15 @@ void kGridSpreadFixedMultipoles_kernel()
int z = atomData.y;
int iz = gridPoint.z-z+(gridPoint.z >= z ? 0 : cSim.pmeGridSize.z);
float atomCharge = cSim.pPosq[atomIndex].w;
float atomDipoleX = cAmoebaSim.pLabFrameDipole[atomIndex+3];
float atomDipoleY = cAmoebaSim.pLabFrameDipole[atomIndex+3+1];
float atomDipoleZ = cAmoebaSim.pLabFrameDipole[atomIndex+3+2];
float atomQuadrupoleXX = cAmoebaSim.pLabFrameQuadrupole[atomIndex+9];
float atomQuadrupoleXY = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+1];
float atomQuadrupoleXZ = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+2];
float atomQuadrupoleYY = cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+4];
float atomQuadrupoleYZ = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+5];
float atomQuadrupoleZZ = cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+8];
float atomDipoleX = cAmoebaSim.pLabFrameDipole[atomIndex*3];
float atomDipoleY = cAmoebaSim.pLabFrameDipole[atomIndex*3+1];
float atomDipoleZ = cAmoebaSim.pLabFrameDipole[atomIndex*3+2];
float atomQuadrupoleXX = cAmoebaSim.pLabFrameQuadrupole[atomIndex*9];
float atomQuadrupoleXY = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+1];
float atomQuadrupoleXZ = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+2];
float atomQuadrupoleYY = cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+4];
float atomQuadrupoleYZ = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+5];
float atomQuadrupoleZZ = cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+8];
float4 t = cAmoebaSim.pThetai1[atomIndex+ix*cSim.atoms];
float4 u = cAmoebaSim.pThetai2[atomIndex+iy*cSim.atoms];
float4 v = cAmoebaSim.pThetai3[atomIndex+iz*cSim.atoms];
......@@ -227,15 +227,15 @@ void kGridSpreadFixedMultipoles_kernel()
int z = atomData.y;
int iz = gridPoint.z-z+(gridPoint.z >= z ? 0 : cSim.pmeGridSize.z);
float atomCharge = cSim.pPosq[atomIndex].w;
float atomDipoleX = cAmoebaSim.pLabFrameDipole[atomIndex+3];
float atomDipoleY = cAmoebaSim.pLabFrameDipole[atomIndex+3+1];
float atomDipoleZ = cAmoebaSim.pLabFrameDipole[atomIndex+3+2];
float atomQuadrupoleXX = cAmoebaSim.pLabFrameQuadrupole[atomIndex+9];
float atomQuadrupoleXY = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+1];
float atomQuadrupoleXZ = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+2];
float atomQuadrupoleYY = cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+4];
float atomQuadrupoleYZ = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+5];
float atomQuadrupoleZZ = cAmoebaSim.pLabFrameQuadrupole[atomIndex+9+8];
float atomDipoleX = cAmoebaSim.pLabFrameDipole[atomIndex*3];
float atomDipoleY = cAmoebaSim.pLabFrameDipole[atomIndex*3+1];
float atomDipoleZ = cAmoebaSim.pLabFrameDipole[atomIndex*3+2];
float atomQuadrupoleXX = cAmoebaSim.pLabFrameQuadrupole[atomIndex*9];
float atomQuadrupoleXY = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+1];
float atomQuadrupoleXZ = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+2];
float atomQuadrupoleYY = cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+4];
float atomQuadrupoleYZ = 2*cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+5];
float atomQuadrupoleZZ = cAmoebaSim.pLabFrameQuadrupole[atomIndex*9+8];
float4 t = cAmoebaSim.pThetai1[atomIndex+ix*cSim.atoms];
float4 u = cAmoebaSim.pThetai2[atomIndex+iy*cSim.atoms];
float4 v = cAmoebaSim.pThetai3[atomIndex+iz*cSim.atoms];
......@@ -290,12 +290,12 @@ void kGridSpreadInducedDipoles_kernel()
int atomIndex = atomData.x;
int z = atomData.y;
int iz = gridPoint.z-z+(gridPoint.z >= z ? 0 : cSim.pmeGridSize.z);
float inducedDipoleX = cAmoebaSim.pInducedDipole[atomIndex+3];
float inducedDipoleY = cAmoebaSim.pInducedDipole[atomIndex+3+1];
float inducedDipoleZ = cAmoebaSim.pInducedDipole[atomIndex+3+2];
float inducedDipolePolarX = cAmoebaSim.pInducedDipolePolar[atomIndex+3];
float inducedDipolePolarY = cAmoebaSim.pInducedDipolePolar[atomIndex+3+1];
float inducedDipolePolarZ = cAmoebaSim.pInducedDipolePolar[atomIndex+3+2];
float inducedDipoleX = cAmoebaSim.pInducedDipole[atomIndex*3];
float inducedDipoleY = cAmoebaSim.pInducedDipole[atomIndex*3+1];
float inducedDipoleZ = cAmoebaSim.pInducedDipole[atomIndex*3+2];
float inducedDipolePolarX = cAmoebaSim.pInducedDipolePolar[atomIndex*3];
float inducedDipolePolarY = cAmoebaSim.pInducedDipolePolar[atomIndex*3+1];
float inducedDipolePolarZ = cAmoebaSim.pInducedDipolePolar[atomIndex*3+2];
float4 t = cAmoebaSim.pThetai1[atomIndex+ix*cSim.atoms];
float4 u = cAmoebaSim.pThetai2[atomIndex+iy*cSim.atoms];
float4 v = cAmoebaSim.pThetai3[atomIndex+iz*cSim.atoms];
......@@ -318,12 +318,12 @@ void kGridSpreadInducedDipoles_kernel()
int atomIndex = atomData.x;
int z = atomData.y;
int iz = gridPoint.z-z+(gridPoint.z >= z ? 0 : cSim.pmeGridSize.z);
float inducedDipoleX = cAmoebaSim.pInducedDipole[atomIndex+3];
float inducedDipoleY = cAmoebaSim.pInducedDipole[atomIndex+3+1];
float inducedDipoleZ = cAmoebaSim.pInducedDipole[atomIndex+3+2];
float inducedDipolePolarX = cAmoebaSim.pInducedDipolePolar[atomIndex+3];
float inducedDipolePolarY = cAmoebaSim.pInducedDipolePolar[atomIndex+3+1];
float inducedDipolePolarZ = cAmoebaSim.pInducedDipolePolar[atomIndex+3+2];
float inducedDipoleX = cAmoebaSim.pInducedDipole[atomIndex*3];
float inducedDipoleY = cAmoebaSim.pInducedDipole[atomIndex*3+1];
float inducedDipoleZ = cAmoebaSim.pInducedDipole[atomIndex*3+2];
float inducedDipolePolarX = cAmoebaSim.pInducedDipolePolar[atomIndex*3];
float inducedDipolePolarY = cAmoebaSim.pInducedDipolePolar[atomIndex*3+1];
float inducedDipolePolarZ = cAmoebaSim.pInducedDipolePolar[atomIndex*3+2];
float4 t = cAmoebaSim.pThetai1[atomIndex+ix*cSim.atoms];
float4 u = cAmoebaSim.pThetai2[atomIndex+iy*cSim.atoms];
float4 v = cAmoebaSim.pThetai3[atomIndex+iz*cSim.atoms];
......@@ -720,15 +720,15 @@ void kComputeFixedMultipoleForceAndEnergy_kernel()
// Compute the force and energy.
multipole[0] = cSim.pPosq[i].w;
multipole[1] = cAmoebaSim.pLabFrameDipole[i+3];
multipole[2] = cAmoebaSim.pLabFrameDipole[i+3+1];
multipole[3] = cAmoebaSim.pLabFrameDipole[i+3+2];
multipole[4] = cAmoebaSim.pLabFrameQuadrupole[i+9];
multipole[5] = 2*cAmoebaSim.pLabFrameQuadrupole[i+9+1];
multipole[6] = 2*cAmoebaSim.pLabFrameQuadrupole[i+9+2];
multipole[7] = cAmoebaSim.pLabFrameQuadrupole[i+9+4];
multipole[8] = 2*cAmoebaSim.pLabFrameQuadrupole[i+9+5];
multipole[9] = cAmoebaSim.pLabFrameQuadrupole[i+9+8];
multipole[1] = cAmoebaSim.pLabFrameDipole[i*3];
multipole[2] = cAmoebaSim.pLabFrameDipole[i*3+1];
multipole[3] = cAmoebaSim.pLabFrameDipole[i*3+2];
multipole[4] = cAmoebaSim.pLabFrameQuadrupole[i*9];
multipole[5] = 2*cAmoebaSim.pLabFrameQuadrupole[i*9+1];
multipole[6] = 2*cAmoebaSim.pLabFrameQuadrupole[i*9+2];
multipole[7] = cAmoebaSim.pLabFrameQuadrupole[i*9+4];
multipole[8] = 2*cAmoebaSim.pLabFrameQuadrupole[i*9+5];
multipole[9] = cAmoebaSim.pLabFrameQuadrupole[i*9+8];
float4 f = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
for (int k = 0; k < 10; k++) {
energy += multipole[k]*cAmoebaSim.pPhi[20*i+k];
......@@ -755,7 +755,7 @@ void kComputeFixedMultipoleForceAndEnergy_kernel()
+ 2.0f*(multipole[4]-multipole[6])*cAmoebaSim.pPhi[9]
+ multipole[7]*cAmoebaSim.pPhi[9] + multipole[8]*cAmoebaSim.pPhi[6]
- multipole[8]*cAmoebaSim.pPhi[4] - multipole[9]*cAmoebaSim.pPhi[7];
cAmoebaSim.pTorque[3*i+1] = multipole[2]*cAmoebaSim.pPhi[1] - multipole[1]*cAmoebaSim.pPhi[2]
cAmoebaSim.pTorque[3*i+2] = multipole[2]*cAmoebaSim.pPhi[1] - multipole[1]*cAmoebaSim.pPhi[2]
+ 2.0f*(multipole[5]-multipole[4])*cAmoebaSim.pPhi[7]
+ multipole[7]*cAmoebaSim.pPhi[4] + multipole[9]*cAmoebaSim.pPhi[8]
- multipole[7]*cAmoebaSim.pPhi[5] - multipole[8]*cAmoebaSim.pPhi[9];
......@@ -784,21 +784,21 @@ void kComputeInducedDipoleForceAndEnergy_kernel()
// Compute the force and energy.
multipole[0] = cSim.pPosq[i].w;
multipole[1] = cAmoebaSim.pLabFrameDipole[i+3];
multipole[2] = cAmoebaSim.pLabFrameDipole[i+3+1];
multipole[3] = cAmoebaSim.pLabFrameDipole[i+3+2];
multipole[4] = cAmoebaSim.pLabFrameQuadrupole[i+9];
multipole[5] = 2*cAmoebaSim.pLabFrameQuadrupole[i+9+1];
multipole[6] = 2*cAmoebaSim.pLabFrameQuadrupole[i+9+2];
multipole[7] = cAmoebaSim.pLabFrameQuadrupole[i+9+4];
multipole[8] = 2*cAmoebaSim.pLabFrameQuadrupole[i+9+5];
multipole[9] = cAmoebaSim.pLabFrameQuadrupole[i+9+8];
inducedDipole[0] = cAmoebaSim.pInducedDipole[i+3];
inducedDipole[1] = cAmoebaSim.pInducedDipole[i+3+1];
inducedDipole[2] = cAmoebaSim.pInducedDipole[i+3+2];
inducedDipolePolar[0] = cAmoebaSim.pInducedDipolePolar[i+3];
inducedDipolePolar[1] = cAmoebaSim.pInducedDipolePolar[i+3+1];
inducedDipolePolar[2] = cAmoebaSim.pInducedDipolePolar[i+3+2];
multipole[1] = cAmoebaSim.pLabFrameDipole[i*3];
multipole[2] = cAmoebaSim.pLabFrameDipole[i*3+1];
multipole[3] = cAmoebaSim.pLabFrameDipole[i*3+2];
multipole[4] = cAmoebaSim.pLabFrameQuadrupole[i*9];
multipole[5] = 2*cAmoebaSim.pLabFrameQuadrupole[i*9+1];
multipole[6] = 2*cAmoebaSim.pLabFrameQuadrupole[i*9+2];
multipole[7] = cAmoebaSim.pLabFrameQuadrupole[i*9+4];
multipole[8] = 2*cAmoebaSim.pLabFrameQuadrupole[i*9+5];
multipole[9] = cAmoebaSim.pLabFrameQuadrupole[i*9+8];
inducedDipole[0] = cAmoebaSim.pInducedDipole[i*3];
inducedDipole[1] = cAmoebaSim.pInducedDipole[i*3+1];
inducedDipole[2] = cAmoebaSim.pInducedDipole[i*3+2];
inducedDipolePolar[0] = cAmoebaSim.pInducedDipolePolar[i*3];
inducedDipolePolar[1] = cAmoebaSim.pInducedDipolePolar[i*3+1];
inducedDipolePolar[2] = cAmoebaSim.pInducedDipolePolar[i*3+2];
float4 f = make_float4(0.0f, 0.0f, 0.0f, 0.0f);
for (int k = 0; k < 3; k++) {
int j1 = deriv1[k+1];
......@@ -833,7 +833,7 @@ void kComputeInducedDipoleForceAndEnergy_kernel()
+ 2.0f*(multipole[4]-multipole[6])*cAmoebaSim.pPhi[9]
+ multipole[7]*cAmoebaSim.pPhi[9] + multipole[8]*cAmoebaSim.pPhi[6]
- multipole[8]*cAmoebaSim.pPhi[4] - multipole[9]*cAmoebaSim.pPhi[7];
cAmoebaSim.pTorque[3*i+1] = multipole[2]*cAmoebaSim.pPhi[1] - multipole[1]*cAmoebaSim.pPhi[2]
cAmoebaSim.pTorque[3*i+2] = multipole[2]*cAmoebaSim.pPhi[1] - multipole[1]*cAmoebaSim.pPhi[2]
+ 2.0f*(multipole[5]-multipole[4])*cAmoebaSim.pPhi[7]
+ multipole[7]*cAmoebaSim.pPhi[4] + multipole[9]*cAmoebaSim.pPhi[8]
- multipole[7]*cAmoebaSim.pPhi[5] - multipole[8]*cAmoebaSim.pPhi[9];
......
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