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/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@author Azzam Haidar
@author Tingxing Dong
@generated from testing/testing_zpotrf_batched.cpp, normal z -> c, Wed Jan 22 14:40:45 2025
*/
// includes, system
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
// includes, project
#include "flops.h"
#include "magma_v2.h"
#include "magma_lapack.h"
#include "testings.h"
#if defined(_OPENMP)
#include <omp.h>
#endif
#include "../control/magma_threadsetting.h" // internal header
/* ////////////////////////////////////////////////////////////////////////////
-- Testing cpotrf_batched
*/
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;
magmaFloatComplex *h_A, *h_R;
magmaFloatComplex *d_A;
magma_int_t N, n2, lda, ldda, info;
magmaFloatComplex c_neg_one = MAGMA_C_NEG_ONE;
magma_int_t ione = 1;
magma_int_t ISEED[4] = {0,0,0,1};
float work[1], error;
int status = 0;
magmaFloatComplex **d_A_array = NULL;
magma_int_t *dinfo_magma;
magma_int_t *hinfo_magma;
magma_int_t batchCount;
magma_opts opts( MagmaOptsBatched );
opts.parse_opts( argc, argv );
opts.lapack |= opts.check; // check (-c) implies lapack (-l)
batchCount = opts.batchcount;
float tol = opts.tolerance * lapackf77_slamch("E");
magma_queue_t queue = opts.queue;
printf("%% BatchCount N CPU Gflop/s (ms) GPU Gflop/s (ms) ||R_magma - R_lapack||_F / ||R_lapack||_F\n");
printf("%%===================================================================================================\n");
for( int itest = 0; itest < opts.ntest; ++itest ) {
for( int iter = 0; iter < opts.niter; ++iter ) {
N = opts.nsize[itest];
lda = N;
ldda = magma_roundup( N, opts.align ); // multiple of 32 by default
n2 = lda* N * batchCount;
gflops = batchCount * FLOPS_CPOTRF( N ) / 1e9;
TESTING_CHECK( magma_imalloc_cpu( &hinfo_magma, batchCount ));
TESTING_CHECK( magma_cmalloc_cpu( &h_A, n2 ));
TESTING_CHECK( magma_cmalloc_pinned( &h_R, n2 ));
TESTING_CHECK( magma_cmalloc( &d_A, ldda * N * batchCount ));
TESTING_CHECK( magma_imalloc( &dinfo_magma, batchCount ));
TESTING_CHECK( magma_malloc( (void**) &d_A_array, batchCount * sizeof(magmaFloatComplex*) ));
/* Initialize the matrix */
lapackf77_clarnv( &ione, ISEED, &n2, h_A );
for (int i=0; i < batchCount; i++)
{
magma_cmake_hpd( N, h_A + i * lda * N, lda ); // need modification
}
magma_int_t columns = N * batchCount;
lapackf77_clacpy( MagmaFullStr, &N, &(columns), h_A, &lda, h_R, &lda );
magma_csetmatrix( N, columns, h_A, lda, d_A, ldda, opts.queue );
/* ====================================================================
Performs operation using MAGMA
=================================================================== */
magma_memset( dinfo_magma, 0, batchCount * sizeof(magma_int_t) );
magma_cset_pointer( d_A_array, d_A, ldda, 0, 0, ldda * N, batchCount, queue );
gpu_time = magma_sync_wtime( opts.queue );
info = magma_cpotrf_batched( opts.uplo, N, d_A_array, ldda, dinfo_magma, batchCount, queue);
gpu_time = magma_sync_wtime( opts.queue ) - gpu_time;
gpu_perf = gflops / gpu_time;
magma_getvector( batchCount, sizeof(magma_int_t), dinfo_magma, 1, hinfo_magma, 1, opts.queue );
for (int i=0; i < batchCount; i++)
{
if (hinfo_magma[i] != 0 ) {
printf("magma_cpotrf_batched matrix %lld returned diag error %lld\n",
(long long) i, (long long) hinfo_magma[i] );
status = -1;
}
}
if (info != 0) {
//printf("magma_cpotrf_batched returned argument error %lld: %s.\n", (long long) info, magma_strerror( info ));
status = -1;
}
if (status == -1)
goto cleanup;
/* =====================================================================
Performs operation using LAPACK
=================================================================== */
if ( opts.lapack ) {
cpu_time = magma_wtime();
// #define BATCHED_DISABLE_PARCPU
#if !defined (BATCHED_DISABLE_PARCPU) && defined(_OPENMP)
magma_int_t nthreads = magma_get_lapack_numthreads();
magma_set_lapack_numthreads(1);
magma_set_omp_numthreads(nthreads);
#pragma omp parallel for schedule(dynamic)
#endif
for (magma_int_t s=0; s < batchCount; s++)
{
magma_int_t locinfo;
lapackf77_cpotrf( lapack_uplo_const(opts.uplo), &N, h_A + s * lda * N, &lda, &locinfo );
if (locinfo != 0) {
printf("lapackf77_cpotrf matrix %lld returned error %lld: %s.\n",
(long long) s, (long long) locinfo, magma_strerror( locinfo ));
}
}
#if !defined (BATCHED_DISABLE_PARCPU) && defined(_OPENMP)
magma_set_lapack_numthreads(nthreads);
#endif
cpu_time = magma_wtime() - cpu_time;
cpu_perf = gflops / cpu_time;
/* =====================================================================
Check the result compared to LAPACK
=================================================================== */
magma_cgetmatrix( N, columns, d_A, ldda, h_R, lda, opts.queue );
magma_int_t NN = lda*N;
const char* uplo = lapack_uplo_const(opts.uplo);
error = 0;
for (int i=0; i < batchCount; i++)
{
float Anorm, err;
blasf77_caxpy(&NN, &c_neg_one, h_A + i * lda*N, &ione, h_R + i * lda*N, &ione);
Anorm = safe_lapackf77_clanhe("f", uplo, &N, h_A + i * lda*N, &lda, work);
err = safe_lapackf77_clanhe("f", uplo, &N, h_R + i * lda*N, &lda, work)
/ Anorm;
if (std::isnan(err) || std::isinf(err)) {
error = err;
break;
}
error = max( err, error );
}
bool okay = (error < tol);
status += ! okay;
printf("%10lld %5lld %7.2f (%7.2f) %7.2f (%7.2f) %8.2e %s\n",
(long long) batchCount, (long long) N, cpu_perf, cpu_time*1000., gpu_perf, gpu_time*1000.,
error, (okay ? "ok" : "failed"));
}
else {
printf("%10lld %5lld --- ( --- ) %7.2f (%7.2f) ---\n",
(long long) batchCount, (long long) N, gpu_perf, gpu_time*1000. );
}
cleanup:
magma_free_cpu( hinfo_magma );
magma_free_cpu( h_A );
magma_free_pinned( h_R );
magma_free( d_A );
magma_free( d_A_array );
magma_free( dinfo_magma );
if (status == -1)
break;
fflush( stdout );
}
if (status == -1)
break;
if ( opts.niter > 1 ) {
printf( "\n" );
}
}
opts.cleanup();
TESTING_CHECK( magma_finalize() );
return status;
}
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