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git-svn-id: svn://svn.icms.temple.edu/lammps-ro/trunk@6053 f3b2605a-c512-4ea7-a41b-209d697bcdaa

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sjplimp
2011-05-02 15:02:52 +00:00
parent 2be078632d
commit 5f799182b3
70 changed files with 4489 additions and 2253 deletions
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197
lib/gpu/lj96_cut_gpu_kernel.cu
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@ -18,8 +18,6 @@
#ifndef LJ96_GPU_KERNEL
#define LJ96_GPU_KERNEL
#define MAX_SHARED_TYPES 8
#ifdef _DOUBLE_DOUBLE
#define numtyp double
#define numtyp2 double2
@ -46,7 +44,7 @@
#ifdef NV_KERNEL
#include "geryon/ucl_nv_kernel.h"
#include "nv_kernel_def.h"
texture<float4> pos_tex;
#ifdef _DOUBLE_DOUBLE
@ -72,6 +70,8 @@ __inline float4 fetch_pos(const int& i, const float4 *pos)
#define __inline inline
#define fetch_pos(i,y) x_[i]
#define BLOCK_PAIR 64
#define MAX_SHARED_TYPES 8
#endif
@ -82,40 +82,55 @@ __inline int sbmask(int j) { return j >> SBBITS & 3; }
__kernel void kernel_pair(__global numtyp4 *x_, __global numtyp4 *lj1,
__global numtyp4* lj3, const int lj_types,
__global numtyp *sp_lj_in, __global int *dev_nbor,
__global acctyp4 *ans, __global acctyp *engv,
const int eflag, const int vflag, const int inum,
const int nall, const int nbor_pitch) {
// ii indexes the two interacting particles in gi
int ii=GLOBAL_ID_X;
__global int *dev_packed, __global acctyp4 *ans,
__global acctyp *engv, const int eflag,
const int vflag, const int inum, const int nall,
const int nbor_pitch, const int t_per_atom) {
int tid=THREAD_ID_X;
int ii=mul24((int)BLOCK_ID_X,(int)(BLOCK_SIZE_X)/t_per_atom);
ii+=tid/t_per_atom;
int offset=tid%t_per_atom;
__local numtyp sp_lj[4];
sp_lj[0]=sp_lj_in[0];
sp_lj[1]=sp_lj_in[1];
sp_lj[2]=sp_lj_in[2];
sp_lj[3]=sp_lj_in[3];
acctyp energy=(acctyp)0;
acctyp4 f;
f.x=(acctyp)0;
f.y=(acctyp)0;
f.z=(acctyp)0;
acctyp virial[6];
for (int i=0; i<6; i++)
virial[i]=(acctyp)0;
if (ii<inum) {
acctyp energy=(acctyp)0;
acctyp4 f;
f.x=(acctyp)0;
f.y=(acctyp)0;
f.z=(acctyp)0;
acctyp virial[6];
for (int i=0; i<6; i++)
virial[i]=(acctyp)0;
__global int *nbor=dev_nbor+ii;
int i=*nbor;
nbor+=nbor_pitch;
int numj=*nbor;
nbor+=nbor_pitch;
__global int *list_end=nbor+mul24(numj,nbor_pitch);
int n_stride;
__global int *list_end;
if (dev_nbor==dev_packed) {
list_end=nbor+mul24(numj,nbor_pitch);
nbor+=mul24(offset,nbor_pitch);
n_stride=mul24(t_per_atom,nbor_pitch);
} else {
nbor=dev_packed+*nbor;
list_end=nbor+numj;
n_stride=t_per_atom;
nbor+=offset;
}
numtyp4 ix=fetch_pos(i,x_); //x_[i];
int itype=ix.w;
numtyp factor_lj;
for ( ; nbor<list_end; nbor+=nbor_pitch) {
for ( ; nbor<list_end; nbor+=n_stride) {
int j=*nbor;
factor_lj = sp_lj[sbmask(j)];
@ -157,8 +172,47 @@ __kernel void kernel_pair(__global numtyp4 *x_, __global numtyp4 *lj1,
}
} // for nbor
} // if ii
// Reduce answers
if (t_per_atom>1) {
__local acctyp red_acc[6][BLOCK_PAIR];
red_acc[0][tid]=f.x;
red_acc[1][tid]=f.y;
red_acc[2][tid]=f.z;
red_acc[3][tid]=energy;
// Store answers
for (unsigned int s=t_per_atom/2; s>0; s>>=1) {
if (offset < s) {
for (int r=0; r<4; r++)
red_acc[r][tid] += red_acc[r][tid+s];
}
}
f.x=red_acc[0][tid];
f.y=red_acc[1][tid];
f.z=red_acc[2][tid];
energy=red_acc[3][tid];
if (vflag>0) {
for (int r=0; r<6; r++)
red_acc[r][tid]=virial[r];
for (unsigned int s=t_per_atom/2; s>0; s>>=1) {
if (offset < s) {
for (int r=0; r<6; r++)
red_acc[r][tid] += red_acc[r][tid+s];
}
}
for (int r=0; r<6; r++)
virial[r]=red_acc[r][tid];
}
}
// Store answers
if (ii<inum && offset==0) {
__global acctyp *ap1=engv+ii;
if (eflag>0) {
*ap1=energy;
@ -176,49 +230,65 @@ __kernel void kernel_pair(__global numtyp4 *x_, __global numtyp4 *lj1,
__kernel void kernel_pair_fast(__global numtyp4 *x_, __global numtyp4 *lj1_in,
__global numtyp4* lj3_in,
__global numtyp* sp_lj_in, __global int *dev_nbor,
__global numtyp* sp_lj_in,
__global int *dev_nbor, __global int *dev_packed,
__global acctyp4 *ans, __global acctyp *engv,
const int eflag, const int vflag, const int inum,
const int nall, const int nbor_pitch) {
// ii indexes the two interacting particles in gi
int ii=THREAD_ID_X;
const int nall, const int nbor_pitch,
const int t_per_atom) {
int tid=THREAD_ID_X;
int ii=mul24((int)BLOCK_ID_X,(int)(BLOCK_SIZE_X)/t_per_atom);
ii+=tid/t_per_atom;
int offset=tid%t_per_atom;
__local numtyp4 lj1[MAX_SHARED_TYPES*MAX_SHARED_TYPES];
__local numtyp4 lj3[MAX_SHARED_TYPES*MAX_SHARED_TYPES];
__local numtyp sp_lj[4];
if (ii<4)
sp_lj[ii]=sp_lj_in[ii];
if (ii<MAX_SHARED_TYPES*MAX_SHARED_TYPES) {
lj1[ii]=lj1_in[ii];
if (tid<4)
sp_lj[tid]=sp_lj_in[tid];
if (tid<MAX_SHARED_TYPES*MAX_SHARED_TYPES) {
lj1[tid]=lj1_in[tid];
if (eflag>0)
lj3[ii]=lj3_in[ii];
lj3[tid]=lj3_in[tid];
}
ii+=mul24((int)BLOCK_ID_X,(int)BLOCK_SIZE_X);
acctyp energy=(acctyp)0;
acctyp4 f;
f.x=(acctyp)0;
f.y=(acctyp)0;
f.z=(acctyp)0;
acctyp virial[6];
for (int i=0; i<6; i++)
virial[i]=(acctyp)0;
__syncthreads();
if (ii<inum) {
acctyp energy=(acctyp)0;
acctyp4 f;
f.x=(acctyp)0;
f.y=(acctyp)0;
f.z=(acctyp)0;
acctyp virial[6];
for (int i=0; i<6; i++)
virial[i]=(acctyp)0;
__global int *nbor=dev_nbor+ii;
int i=*nbor;
nbor+=nbor_pitch;
int numj=*nbor;
nbor+=nbor_pitch;
__global int *list_end=nbor+mul24(numj,nbor_pitch);
int n_stride;
__global int *list_end;
if (dev_nbor==dev_packed) {
list_end=nbor+mul24(numj,nbor_pitch);
nbor+=mul24(offset,nbor_pitch);
n_stride=mul24(t_per_atom,nbor_pitch);
} else {
nbor=dev_packed+*nbor;
list_end=nbor+numj;
n_stride=t_per_atom;
nbor+=offset;
}
numtyp4 ix=fetch_pos(i,x_); //x_[i];
int iw=ix.w;
int itype=mul24((int)MAX_SHARED_TYPES,iw);
numtyp factor_lj;
for ( ; nbor<list_end; nbor+=nbor_pitch) {
for ( ; nbor<list_end; nbor+=n_stride) {
int j=*nbor;
factor_lj = sp_lj[sbmask(j)];
@ -258,8 +328,47 @@ __kernel void kernel_pair_fast(__global numtyp4 *x_, __global numtyp4 *lj1_in,
}
} // for nbor
} // if ii
// Reduce answers
if (t_per_atom>1) {
__local acctyp red_acc[6][BLOCK_PAIR];
red_acc[0][tid]=f.x;
red_acc[1][tid]=f.y;
red_acc[2][tid]=f.z;
red_acc[3][tid]=energy;
// Store answers
for (unsigned int s=t_per_atom/2; s>0; s>>=1) {
if (offset < s) {
for (int r=0; r<4; r++)
red_acc[r][tid] += red_acc[r][tid+s];
}
}
f.x=red_acc[0][tid];
f.y=red_acc[1][tid];
f.z=red_acc[2][tid];
energy=red_acc[3][tid];
if (vflag>0) {
for (int r=0; r<6; r++)
red_acc[r][tid]=virial[r];
for (unsigned int s=t_per_atom/2; s>0; s>>=1) {
if (offset < s) {
for (int r=0; r<6; r++)
red_acc[r][tid] += red_acc[r][tid+s];
}
}
for (int r=0; r<6; r++)
virial[r]=red_acc[r][tid];
}
}
// Store answers
if (ii<inum && offset==0) {
__global acctyp *ap1=engv+ii;
if (eflag>0) {
*ap1=energy;