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kernels.cu
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kernels.cu
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__global__
void GPU_SetAllCurrentsToZero(GPUCell **cells)
{
unsigned int nx = blockIdx.x;
unsigned int ny = blockIdx.y;
unsigned int nz = blockIdx.z;
//int i,l,k;
Cell *c,*c0 = cells[0],nc;
//double t;
__shared__ extern CellDouble fd[9];
//double *src;//,*dst;
c = cells[ c0->getGlobalCellNumber(nx,ny,nz)];
nc = *c;
nc.SetAllCurrentsToZero(threadIdx);
}
__global__
void GPU_SetFieldsToCells(GPUCell **cells,
double *Ex,double *Ey,double *Ez,
double *Hx,double *Hy,double *Hz
)
{
unsigned int nx = blockIdx.x;
unsigned int ny = blockIdx.y;
unsigned int nz = blockIdx.z;
//int i,l,k;
Cell *c,*c0 = cells[0];
//double t;
c = cells[ c0->getGlobalCellNumber(nx,ny,nz)];
c->readFieldsFromArrays(Ex,Ey,Ez,Hx,Hy,Hz,threadIdx);
}
__host__ __device__
double CheckArraySize(double* a, double* dbg_a,int size)
{
// Cell<Particle> c = (*AllCells)[0];
int wrong = 0;
#ifdef CHECK_ARRAY_SIZE_DEBUG_PRINTS
printf("begin array checking1=============================\n");
#endif
for(int n = 0;n < size;n++)
{
//double t = a[n];
// double dt = dbg_a[n];
if(fabs(a[n] - dbg_a[n]) > SIZE_TOLERANCE)
{
//int3 i = c.getCellTripletNumber(n);
#ifdef CHECK_ARRAY_SIZE_DEBUG_PRINTS
printf("n %5d %15.5e dbg %15.5e diff %15.5e wrong %10d \n",
n,a[n],dbg_a[n],fabs(a[n] - dbg_a[n]),wrong++);
#endif
}
}
#ifdef CHECK_ARRAY_SIZE_DEBUG_PRINTS
printf(" end array checking=============================\n");
#endif
return (1.0-((double)wrong/(size)));
}
__global__ void GPU_WriteAllCurrents(GPUCell **cells,int n0,
double *jx,double *jy,double *jz,double *rho)
{
unsigned int nx = blockIdx.x;
unsigned int ny = blockIdx.y;
unsigned int nz = blockIdx.z;
Cell *c,*c0 = cells[0];
__shared__ extern CellDouble fd[9];
c = cells[ c0->getGlobalCellNumber(nx,ny,nz)];
int i1,l1,k1;
i1 = threadIdx.x;
l1 = threadIdx.y;
k1 = threadIdx.z;
int n = c->getFortranCellNumber(c->i+i1-1,c->l+l1-1,c->k+k1-1);
if (n < 0 ) n = -n;
double t,t_x,t_y;
t_x = c->Jx->M[i1][l1][k1];
int3 i3 = c->getCellTripletNumber(n);
cuda_atomicAdd(&(jx[n]),t_x);
t_y= c->Jy->M[i1][l1][k1];
cuda_atomicAdd(&(jy[n]),t_y);
t = c->Jz->M[i1][l1][k1];
cuda_atomicAdd(&(jz[n]),t);
}
__global__ void GPU_WriteControlSystem(Cell **cells)
{
unsigned int nx = blockIdx.x;
unsigned int ny = blockIdx.y;
unsigned int nz = blockIdx.z;
// int i,l,k;
Cell *c,*c0 = cells[0],nc;
//double t;
__shared__ extern CellDouble fd[9];
//double *src; //,*dst;
// int pqr2;
//CurrentTensor t1,t2;
c = cells[ c0->getGlobalCellNumber(nx,ny,nz)];
// c = cells[ n ];
nc = *c;
nc.SetControlSystemToParticles();
}
//TODO : 1. 3 separate kernels :
// A. form 3x3x3 array with number how many to fly and departure list with start positions in 3x3x3 array
// B. func to get 3x3x3 indexes from a pair of cell numbers, to and from function
// C. 2nd kernel to write arrival 3x3x3 matrices
/// D. 3rd kernel to form arrival positions in the particle list
// E. 4th to write arriving particles
__global__ void GPU_MakeDepartureLists(GPUCell **cells,int nt,int *d_stage)
{
unsigned int nx = blockIdx.x;
unsigned int ny = blockIdx.y;
unsigned int nz = blockIdx.z;
int ix,iy,iz;//,n;
Particle p;
Cell *c,*c0 = cells[0],nc;//,*new_c;
c = cells[c0->getGlobalCellNumber(nx,ny,nz)];
#ifdef FLY_PRINTS
// printf("GPU_MakeDepartureDim gridDim %3u %3u %3u nx %3u ny %3u nz %3u \n",
// gridDim.x,gridDim.y,gridDim.z,
// nx,ny,nz);
// d_stage[n] = 1;
#endif
#ifdef FLY_PRINTS
// printf("GPU_MakeDepartureLists %5d %3d %3d nx %3u ny %3u nz %3u n %5d\n",c->i,c->l,c->k,nx,ny,nz,n);
// c->printCellParticles("Make-BEGIN",nt);
#endif
c->departureListLength = 0;
for(ix = 0;ix < 3;ix++)
{
for(iy = 0;iy < 3;iy++)
{
for(iz = 0;iz < 3;iz++)
{
c->departure[ix][iy][iz] = 0;
// c->departureIndex[ix][iy][iz] = 0;
}
}
}
// d_stage[n] = 2;
c->departureListLength = 0;
//printf("GPU_MakeDepartureLists nt %d number %d \n",nt,c->number_of_particles);
//return;
for(int num = 0;num < c->number_of_particles; num++)
{
p = c->readParticleFromSurfaceDevice(num);
#ifdef FLY_PRINTS
// printf("resident-begin step %3d %5d %3d %3d p %10d sort %2d num %5d size %5d nx %3u ny %3u nz %3u\n",nt,
// c->i,c->l,c->k,
// p.fortran_number,
// (int)p.sort,
// num,
// c->number_of_particles,
// nx,ny,nz
// );
#endif
// c->readParticleFromSurfaceDevice(num,&p);
#ifdef FLY_PRINTS
// printf("RESIDENT STEP %d %5d %3d %3d p %10d sort %2d num %5d size %5d %15.5e < %15.5e < %15.5e\n",
// nt,
// c->i,c->l,c->k,
// p.fortran_number,
// (int)p.sort,
// num,
// c->number_of_particles,
//
// c->x0,p.x,c->x0+c->hx
// );
#endif
if(!c->isPointInCell(p.GetX())) //check Paricle = operator !!!!!!!!!!!!!!!!!!!!!!!!!!!
{
c->removeParticleFromSurfaceDevice(num,&p,&(c->number_of_particles));
c->flyDirection(&p,&ix,&iy,&iz);
if(p.fortran_number == 325041 && p.sort == 2) {
d_stage[0] = ix;
d_stage[1] = iy;
d_stage[2] = iz;
}
#ifdef FLY_PRINTS
// printf("%5d %3d %3d resident-remove step %3d fn %10d sort %d x %25.15e count %3d length %3d num %3d number %5d ix %2d iy %2d iz %2d\n",
// c->i,c->l,c->k,
// nt,
// p.fortran_number,
// p.sort,
// p.x,
// c->departure[ix][iy][iz],
// // c->departureIndex[ix][iy][iz],
// c->departureListLength,
// num,c->number_of_particles,
// ix,iy,iz
// );
#endif
//TODO: mke FINAL print at STRAY function.
// Make 3x3x3x20(50) particle fly array at each cell
//departureList[departureListLength++] = p;
#ifdef FLY_PRINTS
#endif
// if(c->i == 1 && c->l == 1 && c->k == 1)
// {
#ifdef FLY_PRINTS
// printf("cell %5d %2d %2d part %3d fn %10d fly %d%d%d x:%15.5e < %15.5e < %15.5e y:%15.5e < %15.5e < %15.5e z::%15.5e < %15.5e < %15.5e\n",
// c->i,c->l,c->k,num,p.fortran_number,ix,iy,iz,
// c->x0,p.x,c->x0+c->hx,
// c->y0,p.y,c->y0+c->hy,
// c->z0,p.z,c->z0+c->hz
// );
#endif
// }
//if(c->departure[ix][iy][iz] == 0) c->departureIndex[ix][iy][iz] = c->departureListLength;
if(c->departureListLength == PARTICLES_FLYING_ONE_DIRECTION)
{
d_stage[0] = TOO_MANY_PARTICLES;
d_stage[1] = c->i;
d_stage[2] = c->l;
d_stage[3] = c->k;
d_stage[1] = ix;
d_stage[2] = iy;
d_stage[3] = iz;
return;
}
c->departureListLength++;
int num1 = c->departure[ix][iy][iz];
c->departureList[ix][iy][iz][num1] = p;
if(p.fortran_number == 325041 && p.sort == 2) {
d_stage[4] = num1;
d_stage[5] = c->departureList[ix][iy][iz][num1].fortran_number;
}
c->departure[ix][iy][iz] += 1;
#ifdef FLY_PRINTS
// Particle new_p;
//
// new_p = c->departureList[ix][iy][iz][num1];
// printf(" %5d %2d %2d departureC fn %10d count %3d length %3d num %3d number %5d\n",
// c->i,c->l,c->k,new_p.fortran_number,c->departure[ix][iy][iz],
// //c->departureIndex[ix][iy][iz],
// c->departureListLength,
// num1,c->number_of_particles);
#endif
num--;
}
#ifdef FLY_PRINTS
// printf("resident-final %5d %3d %3d fn %10d length %3d num %3d number %5d\n",
// c->i,c->l,c->k,p.fortran_number,
// c->departureListLength,
// num,c->number_of_particles);
//
#endif
}
// d_stage[n] = 3;
#ifdef FLY_PRINTS
//printf("resident-end\n");
#endif
//char s[1000],s1[10];
//printf(s,"DEPARTURE cell %5d %2d %2d ",c->i,c->l,c->k);
for(ix = 0;ix < 3;ix++)
for(iy = 0;iy < 3;iy++)
for(iz = 0;iz < 3;iz++)
{
#ifdef FLY_PRINTS
// printf("DEPARTURE step %d cell %5d %2d %2d %d%d%d num %3d \n",nt,c->i,c->l,c->k,ix,iy,iz,
// c->departure[ix][iy][iz]);//,c->departureIndex[ix][iy][iz]);
// int num = c->departure[ix][iy][iz];
// for(int ip = 0;ip < num;ip++)
// {
// p = c->departureList[ix][iy][iz][ip];
// printf("%10d ",p.fortran_number);
// }
// printf("\n");
#endif
// strcat(s,s1);
}
//printf("%s \n",s);
// d_stage[n] = 5;
}
__global__ void GPU_ArrangeFlights(GPUCell **cells,int nt, int *d_stage)
{
unsigned int nx = blockIdx.x;
unsigned int ny = blockIdx.y;
unsigned int nz = blockIdx.z;
int ix,iy,iz,snd_ix,snd_iy,snd_iz,num,n;
Particle p;
Cell *c,*c0 = cells[0],nc,*snd_c;
//int first = 1;
//printf("GPU_ArrangeFlights \n");
// return;
c = cells[ n = c0->getGlobalCellNumber(nx,ny,nz)];
for(ix = 0;ix < 3;ix++)
for(iy = 0;iy < 3;iy++)
for(iz = 0;iz < 3;iz++)
{
int index = ix*9 +iy*3 +iz;
n = c0->getWrapCellNumber(nx+ix-1,ny+iy-1,nz+iz-1);
snd_c = cells[ n ];
if(nx == 24 && ny == 2 && nz == 2)
{
d_stage[index*4] = snd_c->i;
d_stage[index*4+1] = snd_c->l;
d_stage[index*4+2] = snd_c->k;
d_stage[index*4+3] = snd_c->departureListLength;
}
//#ifdef FLY_PRINTS
// printf("arrange %5d %2d %2d %d%d%d nx %5d %3d %3d n %5d snd %p \n",c->i,c->l,c->k,ix,iy,iz,nx+ix-1,ny+iy-1,nz+iz-1,n,snd_c);
//#endif
//printf("arrangge %5d %2d %2d %d%d%d snd_c %p \n",c->i,c->l,c->k,ix,iy,iz,snd_c);
// continue;
snd_ix = ix;
snd_iy = iy;
snd_iz = iz;
//printf("arrannge %5d %2d %2d %d%d%d \n",c->i,c->l,c->k,ix,iy,iz);
//printf("arrrange %5d %2d %2d %d%d%d \n",c->i,c->l,c->k,ix,iy,iz);
c->inverseDirection(&snd_ix,&snd_iy,&snd_iz);
// printf("inverse %5d %2d %2d %d%d%d \n",c->i,c->l,c->k,ix,iy,iz);
//#ifdef FLY_PRINTS
//
// printf("cell %5d %2d %2d direction %d%d%d from %5d %2d %2d snd dir %d%d%d \n", //);from %5d %2d %2d snd dir %d%d%d\n",
// c->i,c->l,c->k,ix,iy,iz,
// snd_c->i,snd_c->l,snd_c->k,snd_ix,snd_iy,snd_iz);
//#endif
//continue;
num = snd_c->departure[snd_ix][snd_iy][snd_iz];
// if(nx == 24 && ny == 2 && nz == 2)
// {
// d_stage[index*4+3] = num;
// }
//pos = snd_c->departureIndex[ix][iy][iz];
//#ifdef FLY_PRINTS
// printf("BEFORE_ARR step %d cell %5d %2d %2d num %3d direction %d%d%d from %d%d%d donor %5d %2d %2d\n",nt,
// c->i,c->l,c->k,num,ix,iy,iz,snd_ix,snd_iy,snd_iz,
// snd_c->i,snd_c->l,snd_c->k
// );
//#endif
for(int i = 0;i < num;i++)
{
p = snd_c->departureList[snd_ix][snd_iy][snd_iz][i];
//#ifdef FLY_PRINTS
if(nx == 24 && ny == 2 && nz == 2)
{
// if(snd_c->i == 23 && snd_c->k == 2 && snd_c->l == 1)
// {
// d_stage[0] = num;
// d_stage[1] = p.fortran_number;
// }
}
// printf("step %3d sort %d ARRIVAL cell %5d %2d %2d part %3d (total %3d ) pos %d fn %10d to %d%d%d from %d%d%d numInCell %3d x %15.5e %15.5e %15.5e m %15.5e q_m %15.5e px %15.5e %15.5e %15.5e\n",
// nt,p.sort,
// c->i,c->l,c->k,i,snd_c->departure[snd_ix][snd_iy][snd_iz],
// pos,p.fortran_number,snd_ix,snd_iy,snd_iz,ix,iy,iz,
// c->number_of_particles,
// p.x,p.y,p.z,p.m,p.q_m,p.pu,p.pv,p.pw
// );
//#endif
c->Insert(p);
}
//new_c->arrival[new_ix][new_iy][new_iz] = c->departure[ix][iy][iz];
}
//#ifdef FLY_PRINTS
// c->printCellParticles("FINAL",nt);
//#endif
}
__global__ void GPU_CollectStrayParticles(Cell **cells,int nt
// int n,
// int i,
// double mass,
// double q_mass,
// double *p_control,
// int jmp
)
{
unsigned int nx = blockIdx.x;
unsigned int ny = blockIdx.y;
unsigned int nz = blockIdx.z;
// int busy;
Particle p;
int n;
// int i,l,k;
Cell *c,*c0 = cells[0],nc,*new_c;
//int first = 1;
c = cells[ n = c0->getGlobalCellNumber(nx,ny,nz)];
for(int i = 0;i < c->number_of_particles; i++)
{
p = c->readParticleFromSurfaceDevice(i);
#ifdef STRAY_DEBUG_PRINTS
//if((p.fortran_number == 2498) && (p.sort == BEAM_ELECTRON))
// {
printf("STRAY-BASIC step %d cell %3d %d %d sort %d particle %d FORTRAN %5d X: %15.5e < %15.5e < %15.5e Y: %15.5e < %15.5e < %15.5e Z: %15.5e < %15.5e < %15.5e \n",
nt,c->i,c->l,c->k,(int)p.sort,i,p.fortran_number,
c->x0,p.x,c->x0+c->hx,
c->y0,p.y,c->y0+c->hy,
c->z0,p.z,c->z0+c->hz
);
//}
#endif
if(!c->isPointInCell(p.GetX()))// || (p.fortran_number == 753) )//|| (p.fortran_number == 10572))
{
#ifdef STRAY_DEBUG_PRINTS
printf("STRAY-OUT step %3d cell %3d %d %d sort %d particle %d FORTRAN %5d X: %15.5e < %25.17e < %15.5e \n",
nt,c->i,c->l,c->k,(int)p.sort,i,p.fortran_number,c->x0,p.x,c->x0+c->hx);
#endif
int new_n = c->getPointCell(p.GetX());
new_c = cells[new_n];
if(c->i == 99 && c->l == 0 && c->k == 3)
{
// c->printCellParticles();
// if(c->i >= c->Nx-1)
// {
#ifdef STRAY_DEBUG_PRINTS
// if((p.fortran_number == 2498) && (p.sort == BEAM_ELECTRON))
// {
// printf("c %3d (%d,%d,%d)->(%d,%d,%d) s %d p %d FN %5d X: %15.5e<%23.16e<%15.5e \n",n,c->i,c->l,c->k,new_c->i,new_c->l,new_c->k,(int)p.sort,i,p.fortran_number,c->x0,p.x,c->x0+c->hx);
// printf("c %3d (%d,%d,%d)->(%d,%d,%d) s %d p %d FN %5d Y: %15.5e<%23.16e<%15.5e \n",n,c->i,c->l,c->k,new_c->i,new_c->l,new_c->k,(int)p.sort,i,p.fortran_number,c->y0,p.y,c->y0+c->hy);
// printf("c %3d (%d,%d,%d)->(%d,%d,%d) s %d p %d FN %5d Z: %15.5e<%23.16e<%15.5e \n",n,c->i,c->l,c->k,new_c->i,new_c->l,new_c->k,(int)p.sort,i,p.fortran_number,c->z0,p.z,c->z0+c->hz);
// }
#endif
// }
}
// if(first == 1)
// {
// do{
// busy = atomicCAS(&(c->busyParticleArray),0,1);
// busy = ((c->busyParticleArra == 0 )? 1: c->busyParticleArra)
// busy = ((c->busyParticleArra == 1 )? 0: c->busyParticleArra)
// }while(busy == 1);
while (atomicCAS(&(c->busyParticleArray),0,1)) {}
c->removeParticleFromSurfaceDevice(i,&p,&(c->number_of_particles));
//c->busyParticleArray = 0;
atomicExch(&(c->busyParticleArray),0u);
i--;
// first = 0;
// }
// if(c->i == 99 && c->l == 0 && c->k == 3)
// {
// c->printCellParticles();
// }
//do{
// busy = atomicCAS(&(new_c->busyParticleArray),0,1);
//}while(busy == 1);
while (atomicCAS(&(new_c->busyParticleArray),0,1)) {}
new_c->Insert(p);
#ifdef STRAY_DEBUG_PRINTS
printf("STRAY-INSERT step %d %3d %d %d sort %d particle %d FORTRAN %5d X: %15.5e < %25.17e < %15.5e \n",
nt,
new_c->i,new_c->l,new_c->k,(int)p.sort,i,p.fortran_number,new_c->x0,p.x,new_c->x0+new_c->hx);
#endif
//new_c->busyParticleArray = 0;
atomicExch(&(new_c->busyParticleArray),0u);
if((p.fortran_number == 2498) && (p.sort == BEAM_ELECTRON))
{
// new_c->printCellParticles();
}
if(c->i == 99 && c->l == 0 && c->k == 3)
{
// new_c->printCellParticles();
}
}
}
// c->printCellParticles("STRAY-FINAL",nt);
}
__device__ double checkCurrentComponentImpact(
CurrentTensorComponent *t1,CurrentTensorComponent *t2,
int i,int l, int k,int pqr2
)
{
double res = 0;
if((t1->i11 == i && t1->i12 == l && t1->i13 == k && (fabs(t1->t[0]) > 1e-15))) res = t1->t[0];
if((t1->i21 == i && t1->i22 == l && t1->i23 == k && (fabs(t1->t[1]) > 1e-15))) res = t1->t[1];
if((t1->i31 == i && t1->i32 == l && t1->i33 == k && (fabs(t1->t[2]) > 1e-15))) res = t1->t[2];
if((t1->i41 == i && t1->i42 == l && t1->i43 == k && (fabs(t1->t[3]) > 1e-15))) res = t1->t[3];
if(pqr2 == 2)
{
if((t2->i11 == i && t2->i12 == l && t2->i13 == k && (fabs(t2->t[0]) > 1e-15))) res = t2->t[0];
if((t2->i21 == i && t2->i22 == l && t2->i23 == k && (fabs(t2->t[1]) > 1e-15))) res = t2->t[1];
if((t2->i31 == i && t2->i32 == l && t2->i33 == k && (fabs(t2->t[2]) > 1e-15))) res = t2->t[2];
if((t2->i41 == i && t2->i42 == l && t2->i43 == k && (fabs(t2->t[3]) > 1e-15))) res = t2->t[3];
}
return res;
}
__device__ void writeCurrentComponent(CellDouble *J,
CurrentTensorComponent *t1,CurrentTensorComponent *t2,int pqr2)
{
cuda_atomicAdd(&(J->M[t1->i11][t1->i12][t1->i13]),t1->t[0]);
cuda_atomicAdd(&(J->M[t1->i21][t1->i22][t1->i23]),t1->t[1]);
cuda_atomicAdd(&(J->M[t1->i31][t1->i32][t1->i33]),t1->t[2]);
cuda_atomicAdd(&(J->M[t1->i41][t1->i42][t1->i43]),t1->t[3]);
if(pqr2 == 2)
{
cuda_atomicAdd(&(J->M[t2->i11][t2->i12][t2->i13]),t2->t[0]);
cuda_atomicAdd(&(J->M[t2->i21][t2->i22][t2->i23]),t2->t[1]);
cuda_atomicAdd(&(J->M[t2->i31][t2->i32][t2->i33]),t2->t[2]);
cuda_atomicAdd(&(J->M[t2->i41][t2->i42][t2->i43]),t2->t[3]);
}
}
__device__ void multiWriteCurrentComponent(CellDouble *J,
CurrentTensorComponent *t1,CurrentTensorComponent *t2,int pqr2,int i)
{
writeCurrentComponent(&(J[i % 3]),t1,t2,pqr2);
// if(i % 3 == 0)
// {
// writeCurrentComponent(&(J[0]),t1,t2,pqr2);
// }
//
// if(i %3 == 1)
// {
// writeCurrentComponent(&(J[1]),t1,t2,pqr2);
// }
//
// if(i %3 == 2)
// {
// writeCurrentComponent(&(J[2]),t1,t2,pqr2);
// }
}
__device__ void copyCellDouble(CellDouble *dst,CellDouble *src,unsigned int n,uint3 block)
{
if(n < CellExtent*CellExtent*CellExtent)
{
double *d_dst,*d_src;//,t;
d_dst = (double *)(dst->M);
d_src = (double *)(src->M);
// t = d_dst[n];
//
// if(fabs(d_dst[n] - d_src[n]) > 1e-15)
// {
// printf("block %5d %3d %3d thread %5d CCD t %15.5e dst %15.5e src %15.5e dst %p src %p d_dst[n] %p d_src[n] %p \n",
// block.x,block.y,block.z,threadIdx.x,t,d_dst[n],d_src[n],dst,src,&(d_dst[n]),&(d_src[n]));
// }
d_dst[n] = d_src[n];
}
}
__global__ void GPU_GetCellNumbers(Cell **cells,
int *numbers)
{
Cell *c;//,nc;
c = cells[blockIdx.x];
numbers[blockIdx.x] = (*c).number_of_particles;
}
__device__ void assignSharedWithLocal(
CellDouble **c_jx,
CellDouble **c_jy,
CellDouble **c_jz,
CellDouble **c_ex,
CellDouble **c_ey,
CellDouble **c_ez,
CellDouble **c_hx,
CellDouble **c_hy,
CellDouble **c_hz,
CellDouble *fd)
{
*c_ex = &(fd[0]);
*c_ey = &(fd[1]);
*c_ez = &(fd[2]);
*c_hx = &(fd[3]);
*c_hy = &(fd[4]);
*c_hz = &(fd[5]);
*c_jx = &(fd[6]);
*c_jy = &(fd[7]);
*c_jz = &(fd[8]);
}
__device__ void copyFieldsToSharedMemory(
CellDouble *c_jx,
CellDouble *c_jy,
CellDouble *c_jz,
CellDouble *c_ex,
CellDouble *c_ey,
CellDouble *c_ez,
CellDouble *c_hx,
CellDouble *c_hy,
CellDouble *c_hz,
Cell *c,
int index,
dim3 blockId,
int blockDimX
)
{
//int index = threadIdx.x;
while(index < CellExtent*CellExtent*CellExtent)
{
// if(index < 125) {
copyCellDouble(c_ex,c->Ex,index,blockId);
copyCellDouble(c_ey,c->Ey,index,blockId);
copyCellDouble(c_ez,c->Ez,index,blockId);
copyCellDouble(c_hx,c->Hx,index,blockId);
copyCellDouble(c_hy,c->Hy,index,blockId);
copyCellDouble(c_hz,c->Hz,index,blockId);
copyCellDouble(c_jx,c->Jx,index,blockId);
copyCellDouble(c_jy,c->Jy,index,blockId);
copyCellDouble(c_jz,c->Jz,index,blockId);
//}
index += blockDimX;
}
__syncthreads();
}
__device__ void set_cell_double_array_to_zero(CurrentTensorComponent *ca,int length)
{
for(int i = 0; i<= 100;i++)
{
ca[i].t[0] = 0.0;
}
}
__device__ void MoveParticlesInCell(
CellDouble *c_ex,
CellDouble *c_ey,
CellDouble *c_ez,
CellDouble *c_hx,
CellDouble *c_hy,
CellDouble *c_hz,
Cell *c,
int index,
int blockDimX//,
// double mass,
// double q_mass
)
{
// CurrentTensor t1,t2;
int pqr2;
// Particle p;
CellTotalField cf;
while(index < c->number_of_particles)
{
cf.Ex = c->Ex;
cf.Ey = c->Ey;
cf.Ez = c->Ez;
cf.Hx = c->Hx;
cf.Hy = c->Hy;
cf.Hz = c->Hz;
c->MoveSingleParticle(index,cf);
index += blockDimX;
}
__syncthreads();
}
__device__ void assign_cell_double(CellDouble *a,CellDouble *b)
{
int i,l,k;
for(i = 0;i < CellExtent;i++)
{
for(l = 0;l < CellExtent;l++)
{
for(k = 0;k < CellExtent;k++)
{
a->M[i][l][k] = b->M[i][l][k];
}
}
}
}
__device__ void add_cell_double(CellDouble *a,CellDouble *b)
{
int i,l,k;
for(i = 0;i < CellExtent;i++)
{
for(l = 0;l < CellExtent;l++)
{
for(k = 0;k < CellExtent;k++)
{
a->M[i][l][k] += b->M[i][l][k];
}
}
}
}
__device__ void set_cell_double_array_to_zero(CellDouble *arr,int size)
{
int i,l,k;
CellDouble *a;
for(int num = 0;num < size;num++)
{
a = &(arr[num]);
for(i = 0;i < CellExtent;i++)
{
for(l = 0;l < CellExtent;l++)
{
for(k = 0;k < CellExtent;k++)
{
a->M[i][l][k] = 0.0;
}
}
}
}
}
__device__ void AccumulateCurrentWithParticlesInCell(
CellDouble *c_jx,
CellDouble *c_jy,
CellDouble *c_jz,
Cell *c,
int index,
int blockDimX,
int nt
)
{
DoubleCurrentTensor dt;
int pqr2;
__shared__ CellDouble cd[CURRENT_SUM_BUFFER_LENGTH];
set_cell_double_array_to_zero(cd,CURRENT_SUM_BUFFER_LENGTH);
while(index < c->number_of_particles)
{
c->AccumulateCurrentSingleParticle (index,&pqr2,&dt);
multiWriteCurrentComponent(cd,&(dt.t1.Jx),&(dt.t2.Jx),pqr2,index);
writeCurrentComponent(c_jy,&(dt.t1.Jy),&(dt.t2.Jy),pqr2);
writeCurrentComponent(c_jz,&(dt.t1.Jz),&(dt.t2.Jz),pqr2);
index += blockDimX;
}
__syncthreads();
for(int i = 0;i < CURRENT_SUM_BUFFER_LENGTH;i++)
{
add_cell_double(c_jx,&(cd[i]));
}
}
__device__ void copyFromSharedMemoryToCell(
CellDouble *c_jx,
CellDouble *c_jy,
CellDouble *c_jz,
Cell *c,
int index,
int blockDimX,
dim3 blockId
)
{
while(index < CellExtent*CellExtent*CellExtent)
{
copyCellDouble(c->Jx,c_jx,index,blockIdx);
copyCellDouble(c->Jy,c_jy,index,blockIdx);
copyCellDouble(c->Jz,c_jz,index,blockIdx);
index += blockDim.x;
}
c->busyParticleArray = 0;
}
__global__ void GPU_StepAllCells(GPUCell **cells//,
// int i,
// double *global_jx
// double mass,
// double q_mass
)
{
Cell *c,*c0 = cells[0];
__shared__ extern CellDouble fd[9];
CellDouble *c_jx,*c_jy,*c_jz,*c_ex,*c_ey,*c_ez,*c_hx,*c_hy,*c_hz;
// CurrentTensor t1,t2;
// int pqr2;
Particle p;
c = cells[ c0->getGlobalCellNumber(blockIdx.x,blockIdx.y,blockIdx.z)];
assignSharedWithLocal(&c_jx,&c_jy,&c_jz,&c_ex,&c_ey,&c_ez,&c_hx,&c_hy,&c_hz,fd);
copyFieldsToSharedMemory(c_jx,c_jy,c_jz,c_ex,c_ey,c_ez,c_hx,c_hy,c_hz,c,
threadIdx.x,blockIdx,blockDim.x);
MoveParticlesInCell(c_ex,c_ey,c_ez,c_hx,c_hy,c_hz,
c,threadIdx.x,blockDim.x);//,mass,q_mass);
// MoveAccCurrent(c_ex,c_ey,c_ez,c_hx,c_hy,c_hz,c_jx,c_jy,c_jz,
// c,threadIdx.x,blockDim.x,mass,q_mass);
// WriteCurrents(c_jx,c_jy,c_jz,c_jx,c_jy,c_jz,
// c,threadIdx.x,blockDim.x,mass,q_mass);
copyFromSharedMemoryToCell(c_jx,c_jy,c_jz,c,threadIdx.x,blockDim.x,blockIdx);
}
__global__ void GPU_CurrentsAllCells(GPUCell **cells,int nt
// int i,
// double *global_jx,
// double mass,
// double q_mass
)
{
Cell *c,*c0 = cells[0];
__shared__ extern CellDouble fd[9];
CellDouble *c_jx,*c_jy,*c_jz,*c_ex,*c_ey,*c_ez,*c_hx,*c_hy,*c_hz;
// CurrentTensor t1,t2;
// int pqr2;
// Particle p;
c = cells[ c0->getGlobalCellNumber(blockIdx.x,blockIdx.y,blockIdx.z)];
assignSharedWithLocal(&c_jx,&c_jy,&c_jz,&c_ex,&c_ey,&c_ez,&c_hx,&c_hy,&c_hz,fd);
copyFieldsToSharedMemory(c_jx,c_jy,c_jz,c_ex,c_ey,c_ez,c_hx,c_hy,c_hz,c,
threadIdx.x,blockIdx,blockDim.x);
AccumulateCurrentWithParticlesInCell(c_jx,c_jy,c_jz,
c,threadIdx.x,blockDim.x,nt);
copyFromSharedMemoryToCell(c_jx,c_jy,c_jz,c,threadIdx.x,blockDim.x,blockIdx);
if((c->i == 28) && (c->l == 3) && (c->k == 2) && (nt == 1))
{
for(int i = 0;i < CellExtent;i++)
{
for(int l = 0;l < CellExtent;l++)
{
for(int k = 0;k < CellExtent;k++)
{
if(fabs(c_jx->M[i][l][k]) > 1e-15)
{
printf("c_jx %5d %3d %3d %25.15e thread %5d %3d %3d block %5d %3d %3d nt %3d\n",
i,l,k,
c_jx->M[i][l][k],
threadIdx.x,threadIdx.y, threadIdx.z,
blockIdx.x,blockIdx.y,blockIdx.z,nt);
}
}
}
}
}
}
__global__ void GPU_ControlAllCellsCurrents(Cell **cells,int n,int i,CellDouble *jx,CellDouble *jy,CellDouble *jz)
{
// unsigned int nx = blockIdx.x;
// unsigned int ny = blockIdx.y;
// unsigned int nz = blockIdx.z;
// int i,l,k;
Cell *c,*c0 = cells[0],nc;
//double t;
__shared__ extern CellDouble fd[9];
//double *src;
//int pqr2;
// CurrentTensor t1,t2;
// c = cells[ c0->getGlobalCellNumber(nx,ny,nz)];
c = cells[ n ];
nc = *c;