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Transition to GPU
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2
Makefile
2
Makefile
@ -10,7 +10,7 @@ RANLIB = ranlib
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SRC= qmckl_blas_f.f90 qmckl_dgemm.c
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OBJ= IRPF90_temp/qmckl_blas_f.o IRPF90_temp/qmckl_dgemm.o
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LIB= -mkl=sequential $(shell pkg-config --libs $(STARPU) )
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LIB= -mkl=sequential $(shell pkg-config --libs $(STARPU) magma)
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-include irpf90.make
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export
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@ -25,5 +25,17 @@ module qmckl_blas
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integer (kind=c_int64_t) :: tasks(ntasks)
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end subroutine qmckl_tasks_run
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end interface
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end module qmckl_blas
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subroutine f_dgemm(TRANSA, TRANSB, M, N, K, ALPHA, A, LDA, B, LDB, BETA, C, LDC) &
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bind(C, name='f_dgemm')
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use iso_c_binding
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implicit none
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character, intent(in), value :: TRANSA, TRANSB
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integer, intent(in), value :: M,N,K,LDA,LDB,LDC
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double precision, intent(in), value :: ALPHA, BETA
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double precision, intent(in) :: A(LDA,*), B(LDB,*)
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double precision, intent(out) :: C(LDC,*)
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call dgemm(TRANSA, TRANSB, M, N, K, ALPHA, A, LDA, B, LDB, BETA, C, LDC)
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end subroutine
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@ -2,12 +2,22 @@
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#include <starpu.h>
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#include <mkl_cblas.h>
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#include <stdint.h>
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#include <assert.h>
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#include <stdlib.h>
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#include <stdio.h>
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//#define CPU_ENABLED 1
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#ifdef CPU_ENABLED
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#include <cuda.h>
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#include <starpu_cublas_v2.h>
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#endif
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void f_dgemm(const char transa, const char transb, const int m, const int n, const int k,
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const double alpha, const double* A, const int lda, const double* B,
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const int ldb, const double beta, double* C, const int ldc);
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struct dgemm_args {
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@ -22,28 +32,38 @@ struct dgemm_args {
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int lda;
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int ldb;
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int ldc;
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CBLAS_LAYOUT transa;
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CBLAS_LAYOUT transb;
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char transa;
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char transb;
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};
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void qmckl_dgemm_cl(struct dgemm_args args, double* A, double* B, double* C);
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void dgemm_codelet(void *buffers[], void* cl_arg)
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void dgemm_codelet_cpu(void *buffers[], void* cl_arg)
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{
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struct dgemm_args *args = cl_arg;
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double* A = (double*) STARPU_MATRIX_GET_PTR(buffers[0]);
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double* B = (double*) STARPU_MATRIX_GET_PTR(buffers[1]);
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double* C = (double*) STARPU_MATRIX_GET_PTR(buffers[2]);
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qmckl_dgemm_cl(*args, A, B, C);
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int lda = STARPU_MATRIX_GET_LD(buffers[0]);
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int ldb = STARPU_MATRIX_GET_LD(buffers[1]);
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int ldc = STARPU_MATRIX_GET_LD(buffers[2]);
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int m = STARPU_MATRIX_GET_NX(buffers[2]);
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int n = STARPU_MATRIX_GET_NY(buffers[2]);
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int k = STARPU_MATRIX_GET_NY(buffers[0]);
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f_dgemm(args->transa, args->transb,
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m, n, k, args->alpha,
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A, lda, B, ldb, args->beta, C, ldc);
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free(args);
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}
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struct starpu_codelet dgemm_cl =
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{
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.where = STARPU_CPU,
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.cpu_funcs = { dgemm_codelet },
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.cpu_funcs_name = { "dgemm_codelet" },
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.cpu_funcs = { dgemm_codelet_cpu },
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.cpu_funcs_name = { "dgemm_codelet_cpu" },
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.nbuffers = 3,
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.max_parallelism = 1,
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.modes = {STARPU_R, STARPU_R, STARPU_RW},
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@ -52,13 +72,6 @@ struct starpu_codelet dgemm_cl =
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#include<stdio.h>
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void qmckl_dgemm_cl(struct dgemm_args args, double* A, double* B, double* C) {
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cblas_dgemm(CblasColMajor, args.transa, args.transb,
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args.m, args.n, args.k, args.alpha,
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A, args.lda, B, args.ldb,
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args.beta, C, args.ldc);
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}
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static struct dgemm_args* qmckl_dgemm_to_struct(char transa, char transb,
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int m, int n, int k,
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double alpha,
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@ -70,6 +83,25 @@ static struct dgemm_args* qmckl_dgemm_to_struct(char transa, char transb,
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struct dgemm_args* args = (struct dgemm_args*) malloc (sizeof(struct dgemm_args));
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assert (args != NULL);
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int dima = (transa == 'T' || transa == 't') ? m : k;
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int dimb = (transb == 'T' || transb == 't') ? k : n;
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/*
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double* A2;
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double* B2;
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double* C2;
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starpu_malloc_flags((void **)&A2,
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lda*dima*sizeof(double),
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STARPU_MALLOC_PINNED);
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starpu_malloc_flags((void **)&B2,
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lda*dima*sizeof(double),
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STARPU_MALLOC_PINNED);
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starpu_malloc_flags((void **)&C2,
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lda*dima*sizeof(double),
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STARPU_MALLOC_PINNED);
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*/
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args->alpha = alpha;
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args->beta = beta ;
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args->A = A;
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@ -81,18 +113,8 @@ static struct dgemm_args* qmckl_dgemm_to_struct(char transa, char transb,
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args->lda = lda;
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args->ldb = ldb;
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args->ldc = ldc;
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if (transa == 'T' || transa == 't') {
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args->transa = CblasTrans;
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} else {
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args->transa = CblasNoTrans;
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}
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if (transa == 'T' || transa == 't') {
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args->transb = CblasTrans;
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} else {
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args->transb = CblasNoTrans;
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}
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args->transa = transa;
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args->transb = transb;
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return args;
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}
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@ -177,7 +199,6 @@ void qmckl_tasks_run(struct dgemm_args** gemms, int ngemms)
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int rc = starpu_init(NULL);
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assert (rc == 0);
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starpu_data_handle_t matrix_handle[ngemms][3];
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for (int i=0 ; i<ngemms ; ++i)
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{
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@ -224,6 +245,7 @@ void qmckl_tasks_run(struct dgemm_args** gemms, int ngemms)
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starpu_data_unregister(matrix_handle[i][1]);
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starpu_data_unregister(matrix_handle[i][2]);
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}
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starpu_shutdown();
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}
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