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Prepared for recursive

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This commit is contained in:
Anthony Scemama 2021-04-26 10:40:43 +02:00
parent c532c8b6d8
commit 412dba6b92
3 changed files with 96 additions and 20 deletions
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15
el_nuc_el_blas.irp.f
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@ -10,36 +10,35 @@
! dtmp_c:
! dr_{ij}^k . R_{ja}^l -> dtmp_c_{ia}^{kl}
END_DOC
integer :: k, l, m, icount
integer*8 :: gemms(6*ncord*(ncord+1))
integer :: k, l, m
integer*8 :: tasks(100000), ntasks
icount = 0
ntasks = 0_8
! r_{ij}^k . R_{ja}^l -> tmp_c_{ia}^{kl}
do k=0,ncord-1
do l=0,ncord
icount += 1
call qmckl_dgemm('N','N', nelec, nnuc, nelec, 1.d0, &
rescale_een_e(1,1,k), size(rescale_een_e,1), &
rescale_een_n(1,1,l), size(rescale_een_n,1), 0.d0, &
tmp_c(1,1,l,k), size(tmp_c,1), gemms(icount))
tmp_c(1,1,l,k), size(tmp_c,1), tasks, ntasks)
enddo
enddo
! dr_{ij}^k . R_{ja}^l -> dtmp_c_{ia}^{kl}
do k=0,ncord-1
do l=0,ncord
icount += 1
call qmckl_dgemm('N','N', nelec_8*4, nnuc, nelec, 1.d0, &
rescale_een_e_deriv_e(1,1,1,k), &
size(rescale_een_e_deriv_e,1)*size(rescale_een_e_deriv_e,2), &
rescale_een_n(1,1,l), &
size(rescale_een_n,1), 0.d0, &
dtmp_c(1,1,1,l,k), size(dtmp_c,1)*size(dtmp_c,2), &
gemms(icount))
tasks, ntasks)
enddo
enddo
call qmckl_tasks_run(gemms, icount)
print *, ntasks, ' tasks'
call qmckl_tasks_run(tasks, ntasks)
END_PROVIDER

11
qmckl_blas_f.f90
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@ -5,23 +5,24 @@ module qmckl_blas
interface
subroutine qmckl_dgemm(transa, transb, m, n, k, &
alpha, A, lda, B, ldb, beta, C, ldc, res) bind(C)
alpha, A, lda, B, ldb, beta, C, ldc, tasks, ntasks) bind(C)
use :: iso_c_binding
implicit none
character(kind=c_char ), value :: transa, transb
integer (kind=c_int ), value :: m, n, k, lda, ldb, ldc
real (kind=c_double), value :: alpha, beta
real (kind=c_double) :: A(lda,*), B(ldb,*), C(ldc,*)
integer (kind=c_int64_t) :: res
integer (kind=c_int64_t) :: tasks(*)
integer (kind=c_int64_t) :: ntasks
end subroutine qmckl_dgemm
end interface
interface
subroutine qmckl_tasks_run(gemms, ngemms) bind(C)
subroutine qmckl_tasks_run(tasks, ntasks) bind(C)
use :: iso_c_binding
implicit none
integer (kind=c_int32_t), value :: ngemms
integer (kind=c_int64_t) :: gemms(ngemms)
integer (kind=c_int64_t), value :: ntasks
integer (kind=c_int64_t) :: tasks(ntasks)
end subroutine qmckl_tasks_run
end interface

90
qmckl_dgemm.c
View File

@ -59,18 +59,16 @@ void qmckl_dgemm_cl(struct dgemm_args args, double* A, double* B, double* C) {
args.beta, C, args.ldc);
}
void qmckl_dgemm(char transa, char transb,
static struct dgemm_args* qmckl_dgemm_to_struct(char transa, char transb,
int m, int n, int k,
double alpha,
double* A, int lda,
double* B, int ldb,
double beta,
double* C, int ldc,
int64_t* result)
double* C, int ldc)
{
struct dgemm_args* args = (struct dgemm_args*) malloc (sizeof(struct dgemm_args));
assert (args != NULL);
*result = (int64_t) args;
args->alpha = alpha;
args->beta = beta ;
@ -95,14 +93,29 @@ void qmckl_dgemm(char transa, char transb,
} else {
args->transb = CblasNoTrans;
}
return args;
}
void qmckl_dgemm(char transa, char transb,
int m, int n, int k,
double alpha,
double* A, int lda,
double* B, int ldb,
double beta,
double* C, int ldc,
int64_t* tasks, int64_t* ntasks)
{
tasks[*ntasks] = (int64_t) qmckl_dgemm_to_struct (transa, transb,
m, n, k, alpha, A, lda, B, ldb, beta, C, ldc);
*ntasks += 1L;
}
void qmckl_tasks_run(struct dgemm_args** gemms, int ngemms)
{
starpu_init(NULL);
int rc = starpu_init(NULL);
assert (rc == 0);
starpu_data_handle_t matrix_handle[ngemms][3];
for (int i=0 ; i<ngemms ; ++i)
{
@ -138,7 +151,8 @@ void qmckl_tasks_run(struct dgemm_args** gemms, int ngemms)
task->handles[0] = matrix_handle[i][0];
task->handles[1] = matrix_handle[i][1];
task->handles[2] = matrix_handle[i][2];
starpu_task_submit(task);
rc = starpu_task_submit(task);
assert (rc == 0);
}
starpu_task_wait_for_all();
@ -150,3 +164,65 @@ void qmckl_tasks_run(struct dgemm_args** gemms, int ngemms)
}
starpu_shutdown();
}
#define MIN_SIZE 512
static void qmckl_dgemm_rec(struct dgemm_args args) {
// printf("%5d %5d\n", args.m, args.n);
if ( (args.m <= MIN_SIZE) || (args.n <= MIN_SIZE)) {
#pragma omp task
{
printf("BLAS %5d %5d %5d\n", args.m, args.n, args.k);
cblas_dgemm(CblasColMajor, args.transa, args.transb,
args.m, args.n, args.k, args.alpha,
args.A, args.lda, args.B, args.ldb,
args.beta, args.C, args.ldc);
}
} else {
int m1 = args.m / 2;
int m2 = args.m - m1;
int n1 = args.n / 2;
int n2 = args.n - n1;
{
struct dgemm_args args_1 = args;
args_1.m = m1;
args_1.n = n1;
qmckl_dgemm_rec(args_1);
}
{
// TODO: assuming 'N', 'N' here
struct dgemm_args args_2 = args;
args_2.B = args.B + args.ldb*n1;
args_2.C = args.C + args.ldc*n1;
args_2.m = m1;
args_2.n = n2;
qmckl_dgemm_rec(args_2);
}
{
struct dgemm_args args_3 = args;
args_3.A = args.A + m1;
args_3.C = args.C + m1;
args_3.m = m2;
args_3.n = n1;
qmckl_dgemm_rec(args_3);
}
{
struct dgemm_args args_4 = args;
args_4.A = args.A + m1;
args_4.B = args.B + args.ldb*n1;
args_4.C = args.C + m1 + args.ldc*n1;
args_4.m = m2;
args_4.n = n2;
qmckl_dgemm_rec(args_4);
}
}
}