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/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@precisions normal z -> c d s
@author Mark Gates
*/
// includes, system
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
// includes, project
#include "magma_v2.h"
#include "magma_lapack.h"
#include "testings.h"
/* ////////////////////////////////////////////////////////////////////////////
-- Testing zgeadd_batched
Code is very similar to testing_zlacpy_batched.cpp
*/
int main( int argc, char** argv)
{
TESTING_CHECK( magma_init() );
magma_print_environment();
real_Double_t gflops, gpu_perf, gpu_time, cpu_perf, cpu_time;
double error, norm, work[1];
magmaDoubleComplex c_neg_one = MAGMA_Z_NEG_ONE;
magmaDoubleComplex *h_A, *h_B;
magmaDoubleComplex_ptr d_A, d_B;
magmaDoubleComplex **hAarray, **hBarray, **dAarray, **dBarray;
magmaDoubleComplex alpha = MAGMA_Z_MAKE( 3.1415, 2.718 );
magma_int_t j, M, N, mb, nb, size, lda, ldda, mstride, nstride, ntile, offset, tile;
magma_int_t ione = 1;
magma_int_t ISEED[4] = {0,0,0,1};
int status = 0;
magma_opts opts( MagmaOptsBatched );
opts.parse_opts( argc, argv );
double tol = opts.tolerance * lapackf77_dlamch("E");
mb = (opts.nb == 0 ? 32 : opts.nb);
nb = (opts.nb == 0 ? 64 : opts.nb);
mstride = 2*mb;
nstride = 3*nb;
printf("%% mb=%lld, nb=%lld, mstride=%lld, nstride=%lld\n", (long long) mb, (long long) nb, (long long) mstride, (long long) nstride );
printf("%% M N ntile CPU Gflop/s (ms) GPU Gflop/s (ms) error \n");
printf("%%===================================================================\n");
for( int itest = 0; itest < opts.ntest; ++itest ) {
for( int iter = 0; iter < opts.niter; ++iter ) {
M = opts.msize[itest];
N = opts.nsize[itest];
lda = M;
ldda = magma_roundup( M, opts.align ); // multiple of 32 by default
size = lda*N;
if ( N < nb || M < nb ) {
ntile = 0;
} else {
ntile = min( (M - nb)/mstride + 1,
(N - nb)/nstride + 1 );
}
gflops = 2.*mb*nb*ntile / 1e9;
TESTING_CHECK( magma_zmalloc_cpu( &h_A, lda *N ));
TESTING_CHECK( magma_zmalloc_cpu( &h_B, lda *N ));
TESTING_CHECK( magma_zmalloc( &d_A, ldda*N ));
TESTING_CHECK( magma_zmalloc( &d_B, ldda*N ));
TESTING_CHECK( magma_malloc_cpu( (void**) &hAarray, ntile * sizeof(magmaDoubleComplex*) ));
TESTING_CHECK( magma_malloc_cpu( (void**) &hBarray, ntile * sizeof(magmaDoubleComplex*) ));
TESTING_CHECK( magma_malloc( (void**) &dAarray, ntile * sizeof(magmaDoubleComplex*) ));
TESTING_CHECK( magma_malloc( (void**) &dBarray, ntile * sizeof(magmaDoubleComplex*) ));
lapackf77_zlarnv( &ione, ISEED, &size, h_A );
lapackf77_zlarnv( &ione, ISEED, &size, h_B );
/* ====================================================================
Performs operation using MAGMA
=================================================================== */
magma_zsetmatrix( M, N, h_A, lda, d_A, ldda, opts.queue );
magma_zsetmatrix( M, N, h_B, lda, d_B, ldda, opts.queue );
// setup pointers
for( tile = 0; tile < ntile; ++tile ) {
offset = tile*mstride + tile*nstride*ldda;
hAarray[tile] = &d_A[offset];
hBarray[tile] = &d_B[offset];
}
magma_setvector( ntile, sizeof(magmaDoubleComplex*), hAarray, 1, dAarray, 1, opts.queue );
magma_setvector( ntile, sizeof(magmaDoubleComplex*), hBarray, 1, dBarray, 1, opts.queue );
gpu_time = magma_sync_wtime( opts.queue );
magmablas_zgeadd_batched( mb, nb, alpha, dAarray, ldda, dBarray, ldda, ntile, opts.queue );
gpu_time = magma_sync_wtime( opts.queue ) - gpu_time;
gpu_perf = gflops / gpu_time;
/* =====================================================================
Performs operation using LAPACK
=================================================================== */
cpu_time = magma_wtime();
for( tile = 0; tile < ntile; ++tile ) {
offset = tile*mstride + tile*nstride*lda;
for( j = 0; j < nb; ++j ) {
blasf77_zaxpy( &mb, &alpha,
&h_A[offset + j*lda], &ione,
&h_B[offset + j*lda], &ione );
}
}
cpu_time = magma_wtime() - cpu_time;
cpu_perf = gflops / cpu_time;
/* =====================================================================
Check the result
=================================================================== */
magma_zgetmatrix( M, N, d_B, ldda, h_A, lda, opts.queue );
norm = lapackf77_zlange( "F", &M, &N, h_B, &lda, work );
blasf77_zaxpy(&size, &c_neg_one, h_A, &ione, h_B, &ione);
error = lapackf77_zlange("f", &M, &N, h_B, &lda, work) / norm;
bool okay = (error < tol);
status += ! okay;
printf("%5lld %5lld %5lld %7.2f (%7.2f) %7.2f (%7.2f) %8.2e %s\n",
(long long) M, (long long) N, (long long) ntile,
cpu_perf, cpu_time*1000., gpu_perf, gpu_time*1000.,
error, (okay ? "ok" : "failed"));
magma_free_cpu( h_A );
magma_free_cpu( h_B );
magma_free( d_A );
magma_free( d_B );
magma_free_cpu( hAarray );
magma_free_cpu( hBarray );
magma_free( dAarray );
magma_free( dBarray );
fflush( stdout );
}
if ( opts.niter > 1 ) {
printf( "\n" );
}
}
opts.cleanup();
TESTING_CHECK( magma_finalize() );
return status;
}
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