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mirror of https://gitlab.com/scemama/qp_plugins_scemama.git synced 2024-11-07 06:33:40 +01:00
This commit is contained in:
Anthony Scemama 2023-07-16 17:27:14 +02:00
parent 5cec1b8a0c
commit ed440c16a2

View File

@ -1,9 +1,10 @@
#include <stdio.h> #include <stdio.h>
#include <stdlib.h> #include <stdlib.h>
#include <omp.h>
#include <cublas_v2.h> #include <cublas_v2.h>
#include <cuda_runtime.h> #include <cuda_runtime.h>
#define NGPUS 2
#define BLOCK_SIZE 16 #define BLOCK_SIZE 16
void dgemm_(char*, char*, int*, int*, int*, double*, double*, int*, double*, int*, void dgemm_(char*, char*, int*, int*, int*, double*, double*, int*, double*, int*,
@ -65,134 +66,175 @@ void compute_r2_space_chol_gpu(const int nO, const int nV, const int cholesky_mo
double* cc_space_v_vv_chol, double* cc_space_v_vv_chol,
double* r2) double* r2)
{ {
int m,n,k, lda, ldb, ldc; int m,n,k, lda, ldb, ldc;
double alpha, beta; double alpha, beta;
double* A; double* A;
double* B; double* B;
double* C; double* C;
cublasHandle_t handle; double* d_taus[NGPUS];
cublasCreate(&handle); double* d_r2s[NGPUS];
double* d_cc_space_v_vv_chols[NGPUS];
double* d_tau; double* d_cc_space_v_vo_chols[NGPUS];
lda = nO * nO; double* d_t1s[NGPUS];
cudaMalloc((void **)&d_tau, lda * nV * nV * sizeof(double)); double* d_tmp_ccs[NGPUS];
cublasSetMatrix(nO*nO, nV*nV, sizeof(double), tau, lda, d_tau, lda);
double* d_r2;
lda = nO * nO;
cudaMalloc((void **)&d_r2, lda * nV * nV * sizeof(double));
double* d_cc_space_v_vv_chol;
lda = cholesky_mo_num * nV;
cudaMalloc((void **)&d_cc_space_v_vv_chol, lda * nV * sizeof(double));
cublasSetMatrix(cholesky_mo_num*nV, nV, sizeof(double), cc_space_v_vv_chol, lda, d_cc_space_v_vv_chol, lda);
double* d_cc_space_v_vo_chol;
lda = cholesky_mo_num * nV;
cudaMalloc((void **)&d_cc_space_v_vo_chol, lda * nO * sizeof(double));
cublasSetMatrix(cholesky_mo_num*nV, nO, sizeof(double), cc_space_v_vo_chol, lda, d_cc_space_v_vo_chol, lda);
double* d_t1;
lda = nO;
cudaMalloc((void **)&d_t1, nO * nV * sizeof(double));
cublasSetMatrix(nO, nV, sizeof(double), t1, lda, d_t1, lda);
double* d_tmp_cc;
lda = cholesky_mo_num * nV;
cudaMalloc((void **)&d_tmp_cc, lda * nV * sizeof(double));
alpha=1.0; beta=0.0;
m=cholesky_mo_num*nV; n=nV; k=nO;
A = d_cc_space_v_vo_chol; B = d_t1; C = d_tmp_cc;
cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, m, B, k, &beta, C, m);
cublasDestroy(handle);
cublasHandle_t handles[NGPUS];
#pragma omp parallel #pragma omp parallel
{ {
cublasHandle_t handle;
cublasCreate(&handle);
double* d_tmp_cc2; int ithread = omp_get_thread_num();
cudaMalloc((void **)&d_tmp_cc2, cholesky_mo_num*nV*sizeof(double)); int igpu = ithread % NGPUS;
cudaSetDevice(igpu);
double* d_B1; if (ithread < NGPUS) {
cudaMalloc((void**)&d_B1, nV*nV*BLOCK_SIZE*sizeof(double)); cublasCreate(&handles[ithread]);
}
double* d_tmpB1; #pragma omp barrier
cudaMalloc((void**)&d_tmpB1, nV*BLOCK_SIZE*nV*sizeof(double));
#pragma omp for cublasHandle_t handle = handles[igpu];
for (size_t gam=0 ; gam<nV ; ++gam)
double* d_tau;
double* d_r2;
double* d_cc_space_v_vv_chol;
double* d_cc_space_v_vo_chol;
double* d_t1;
double* d_tmp_cc;
if (ithread < NGPUS) {
lda = nO * nO;
cudaMalloc((void **)&d_tau, lda * nV * nV * sizeof(double));
cublasSetMatrix(nO*nO, nV*nV, sizeof(double), tau, lda, d_tau, lda);
d_taus[igpu] = d_tau;
lda = nO * nO;
cudaMalloc((void **)&d_r2, lda * nV * nV * sizeof(double));
d_r2s[igpu] = d_r2;
lda = cholesky_mo_num * nV;
cudaMalloc((void **)&d_cc_space_v_vv_chol, lda * nV * sizeof(double));
cublasSetMatrix(cholesky_mo_num*nV, nV, sizeof(double), cc_space_v_vv_chol, lda, d_cc_space_v_vv_chol, lda);
d_cc_space_v_vv_chols[igpu] = d_cc_space_v_vv_chol;
lda = cholesky_mo_num * nV;
cudaMalloc((void **)&d_cc_space_v_vo_chol, lda * nO * sizeof(double));
cublasSetMatrix(cholesky_mo_num*nV, nO, sizeof(double), cc_space_v_vo_chol, lda, d_cc_space_v_vo_chol, lda);
d_cc_space_v_vo_chols[igpu] = d_cc_space_v_vo_chol;
lda = nO;
cudaMalloc((void **)&d_t1, nO * nV * sizeof(double));
cublasSetMatrix(nO, nV, sizeof(double), t1, lda, d_t1, lda);
d_t1s[igpu] = d_t1;
lda = cholesky_mo_num * nV;
cudaMalloc((void **)&d_tmp_cc, lda * nV * sizeof(double));
d_tmp_ccs[igpu] = d_tmp_cc;
alpha=1.0; beta=0.0;
m=cholesky_mo_num*nV; n=nV; k=nO;
A = d_cc_space_v_vo_chol; B = d_t1; C = d_tmp_cc;
cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, m, B, k, &beta, C, m);
}
#pragma omp barrier
d_tau = d_taus[igpu] ;
d_r2 = d_r2s[igpu] ;
d_cc_space_v_vv_chol = d_cc_space_v_vv_chols[igpu] ;
d_cc_space_v_vo_chol = d_cc_space_v_vo_chols[igpu] ;
d_t1 = d_t1s[igpu] ;
d_tmp_cc = d_tmp_ccs[igpu] ;
double* d_tmp_cc2;
cudaMalloc((void **)&d_tmp_cc2, cholesky_mo_num*nV*sizeof(double));
double* d_B1;
cudaMalloc((void**)&d_B1, nV*nV*BLOCK_SIZE*sizeof(double));
double* d_tmpB1;
cudaMalloc((void**)&d_tmpB1, nV*BLOCK_SIZE*nV*sizeof(double));
#pragma omp for
for (size_t gam=0 ; gam<nV ; ++gam)
{
double* d_tmp_cc_ = &(d_tmp_cc[gam*nV*cholesky_mo_num]);
double* d_cc_space_v_vv_chol_ = &(d_cc_space_v_vv_chol[gam*nV*cholesky_mo_num]);
alpha = 1.0;
beta = -1.0;
A = d_cc_space_v_vv_chol_; lda = cholesky_mo_num;
B = d_tmp_cc_; ldb = cholesky_mo_num;
C = d_tmp_cc2 ; ldc = cholesky_mo_num;
cublasDgeam(handle, CUBLAS_OP_N, CUBLAS_OP_N, cholesky_mo_num, nV, &alpha, A, lda, &beta, B, ldb, C, ldc);
for (size_t iblock=0 ; iblock<nV ; iblock += BLOCK_SIZE)
{
const size_t mbs = BLOCK_SIZE < nV-iblock ? BLOCK_SIZE : nV-iblock;
alpha=-1.0; beta=0.0;
m=nV*mbs; n=nV; k=cholesky_mo_num;
A=&(d_tmp_cc[iblock*cholesky_mo_num*nV]); lda=cholesky_mo_num;
B=d_cc_space_v_vv_chol_; ldb=cholesky_mo_num;
C=d_tmpB1 ; ldc=nV*BLOCK_SIZE;
cublasDgemm(handle, CUBLAS_OP_T, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, lda, &beta, C, ldc);
alpha=1.0; beta=1.0;
m=nV*mbs; n=nV; k=cholesky_mo_num;
A=&(d_cc_space_v_vv_chol[iblock*cholesky_mo_num*nV]); lda=cholesky_mo_num;
B=d_tmp_cc2; ldb=cholesky_mo_num;
C=d_tmpB1 ; ldc=nV*BLOCK_SIZE;
cublasDgemm(handle, CUBLAS_OP_T, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, lda, &beta, C, ldc);
for (size_t bet=iblock ; bet<(nV < iblock+BLOCK_SIZE ? nV : iblock+BLOCK_SIZE) ; ++bet)
{
alpha = 1.0;
beta = 0.0;
A = &(d_tmpB1[nV*(bet-iblock)]); lda = nV*BLOCK_SIZE;
B = d_tmpB1; ldb = nV;
C = &(d_B1[nV*nV*(bet-iblock)]) ; ldc = nV;
cublasDgeam(handle, CUBLAS_OP_N, CUBLAS_OP_N, nV, nV, &alpha, A, lda, &beta, B, ldb, C, ldc);
}
alpha=1.0; beta=1.0;
m=nO*nO; n=mbs; k=nV*nV;
A=d_tau; lda=nO*nO;
B=d_B1 ; ldb=nV*nV;
C=&(d_r2[nO*nO*(iblock + nV*gam)]); ldc=nO*nO;
cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, ldb, &beta, C, ldc);
}
}
cudaFree(d_tmpB1);
cudaFree(d_B1);
cudaFree(d_tmp_cc2);
if (igpu < NGPUS) {
cudaFree(d_cc_space_v_vo_chol);
cudaFree(d_cc_space_v_vv_chol);
cudaFree(d_tau);
cudaFree(d_t1);
cudaFree(d_tmp_cc);
double * r2_tmp = malloc(nO*nO*nV*nV*sizeof(double));
lda=nO*nO;
cublasGetMatrix(nO*nO, nV*nV, sizeof(double), d_r2, lda, r2_tmp, lda);
#pragma omp critical
{ {
double* d_tmp_cc_ = &(d_tmp_cc[gam*nV*cholesky_mo_num]); for (size_t i=0 ; i<nO*nO*nV*nV ; ++i) {
double* d_cc_space_v_vv_chol_ = &(d_cc_space_v_vv_chol[gam*nV*cholesky_mo_num]); r2[i] += r2_tmp[i];
alpha = 1.0;
beta = -1.0;
A = d_cc_space_v_vv_chol_; lda = cholesky_mo_num;
B = d_tmp_cc_; ldb = cholesky_mo_num;
C = d_tmp_cc2 ; ldc = cholesky_mo_num;
cublasDgeam(handle, CUBLAS_OP_N, CUBLAS_OP_N, cholesky_mo_num, nV, &alpha, A, lda, &beta, B, ldb, C, ldc);
for (size_t iblock=0 ; iblock<nV ; iblock += BLOCK_SIZE)
{
const size_t mbs = BLOCK_SIZE < nV-iblock ? BLOCK_SIZE : nV-iblock;
alpha=-1.0; beta=0.0;
m=nV*mbs; n=nV; k=cholesky_mo_num;
A=&(d_tmp_cc[iblock*cholesky_mo_num*nV]); lda=cholesky_mo_num;
B=d_cc_space_v_vv_chol_; ldb=cholesky_mo_num;
C=d_tmpB1 ; ldc=nV*BLOCK_SIZE;
cublasDgemm(handle, CUBLAS_OP_T, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, lda, &beta, C, ldc);
alpha=1.0; beta=1.0;
m=nV*mbs; n=nV; k=cholesky_mo_num;
A=&(d_cc_space_v_vv_chol[iblock*cholesky_mo_num*nV]); lda=cholesky_mo_num;
B=d_tmp_cc2; ldb=cholesky_mo_num;
C=d_tmpB1 ; ldc=nV*BLOCK_SIZE;
cublasDgemm(handle, CUBLAS_OP_T, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, lda, &beta, C, ldc);
for (size_t bet=iblock ; bet<(nV < iblock+BLOCK_SIZE ? nV : iblock+BLOCK_SIZE) ; ++bet)
{
alpha = 1.0;
beta = 0.0;
A = &(d_tmpB1[nV*(bet-iblock)]); lda = nV*BLOCK_SIZE;
B = d_tmpB1; ldb = nV;
C = &(d_B1[nV*nV*(bet-iblock)]) ; ldc = nV;
cublasDgeam(handle, CUBLAS_OP_N, CUBLAS_OP_N, nV, nV, &alpha, A, lda, &beta, B, ldb, C, ldc);
}
alpha=1.0; beta=1.0;
m=nO*nO; n=mbs; k=nV*nV;
A=d_tau; lda=nO*nO;
B=d_B1 ; ldb=nV*nV;
C=&(d_r2[nO*nO*(iblock + nV*gam)]); ldc=nO*nO;
cublasDgemm(handle, CUBLAS_OP_N, CUBLAS_OP_N, m, n, k, &alpha, A, lda, B, ldb, &beta, C, ldc);
} }
} }
free(r2_tmp);
cudaFree(d_r2);
cublasDestroy(handle); cublasDestroy(handle);
} }
cudaFree(d_cc_space_v_vo_chol);
cudaFree(d_cc_space_v_vv_chol);
cudaFree(d_tau);
cudaFree(d_t1);
cudaFree(d_tmp_cc);
double * r2_tmp = malloc(nO*nO*nV*nV*sizeof(double)); }
lda=nO*nO;
cublasGetMatrix(nO*nO, nV*nV, sizeof(double), d_r2, lda, r2_tmp, lda);
for (size_t i=0 ; i<nO*nO*nV*nV ; ++i) {
r2[i] += r2_tmp[i];
}
free(r2_tmp);
cudaFree(d_r2);
} }