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/*
-- MAGMA (version 2.9.0) --
Univ. of Tennessee, Knoxville
Univ. of California, Berkeley
Univ. of Colorado, Denver
@date January 2025
@generated from testing/testing_zgglse.cpp, normal z -> c, Wed Jan 22 14:40:35 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"
/* ////////////////////////////////////////////////////////////////////////////
-- Testing cgels
*/
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;
float gpu_err1, gpu_err2, cpu_err1, cpu_err2, work[1];
magmaFloatComplex c_one = MAGMA_C_ONE;
magmaFloatComplex c_neg_one = MAGMA_C_NEG_ONE;
magmaFloatComplex *h_A, *h_A2, *h_B, *h_B2, *h_R, *h_work, tmp[1], unused[1];
magmaFloatComplex *h_c, *h_d, *h_x, *h_c2, *h_d2, *h_x2;
magma_int_t M, N, size, P, lda, ldb, nb, info;
magma_int_t lhwork;
magma_int_t ione = 1;
magma_int_t ISEED[4] = {0,0,0,1};
magma_opts opts;
opts.parse_opts( argc, argv );
int status = 0;
printf("%% ||c-Ax||/||d-Bx|| ||c-Ax||/||d-Bx|| \n");
printf("%% M N P CPU Gflop/s (sec) GPU Gflop/s (sec) CPU GPU \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];
P = opts.ksize[itest];
if ( !( P<=N && N <=M+P) ) {
printf( "%5lld %5lld %5lld skipping because we don't have P <= N <= M+P.\n",
(long long) M, (long long) N, (long long) P );
continue;
}
lda = M;
ldb = P;
nb = magma_get_cgeqrf_nb( M, N );
gflops = (FLOPS_CGEQRF( M, N ) + FLOPS_CGEQRS( M, N, P )) / 1e9;
// query for workspace size
lhwork = -1;
lapackf77_cgglse( &M, &N, &P,
unused, &lda,
unused, &ldb,
unused, unused, unused,
tmp, &lhwork, &info );
lhwork = (magma_int_t) MAGMA_C_REAL( tmp[0] );
lhwork = max(lhwork, M*nb + P + min(M,N));
lhwork = max(lhwork, 2*nb*nb );
TESTING_CHECK( magma_cmalloc_cpu( &h_A, lda*N ));
TESTING_CHECK( magma_cmalloc_pinned( &h_A2, lda*N ));
TESTING_CHECK( magma_cmalloc_cpu( &h_B, ldb*N ));
TESTING_CHECK( magma_cmalloc_cpu( &h_B2, ldb*N ));
TESTING_CHECK( magma_cmalloc_cpu( &h_R, ldb*N ));
TESTING_CHECK( magma_cmalloc_cpu( &h_work, lhwork ));
TESTING_CHECK( magma_cmalloc_cpu( &h_c , M ));
TESTING_CHECK( magma_cmalloc_cpu( &h_d , P ));
TESTING_CHECK( magma_cmalloc_cpu( &h_x , N ));
TESTING_CHECK( magma_cmalloc_cpu( &h_c2, M ));
TESTING_CHECK( magma_cmalloc_cpu( &h_d2, P ));
TESTING_CHECK( magma_cmalloc_cpu( &h_x2, N ));
/* Initialize the matrices */
magma_generate_matrix( opts, M, N, h_A, lda );
lapackf77_clacpy( MagmaFullStr, &M, &N, h_A, &lda, h_A2, &lda );
// make random RHS
size = ldb*N;
lapackf77_clarnv( &ione, ISEED, &size, h_B );
lapackf77_clacpy( MagmaFullStr, &P, &N, h_B, &ldb, h_R , &ldb );
lapackf77_clacpy( MagmaFullStr, &P, &N, h_B, &ldb, h_B2, &ldb );
lapackf77_clarnv( &ione, ISEED, &M, h_c );
lapackf77_clarnv( &ione, ISEED, &P, h_d );
lapackf77_clarnv( &ione, ISEED, &N, h_x );
lapackf77_clacpy( MagmaFullStr, &M, &ione, h_c, &M, h_c2, &M );
lapackf77_clacpy( MagmaFullStr, &P, &ione, h_d, &P, h_d2, &P );
lapackf77_clacpy( MagmaFullStr, &N, &ione, h_x, &N, h_x2, &N );
/* ====================================================================
Performs operation using MAGMA
=================================================================== */
gpu_time = magma_wtime();
magma_cgglse( M, N, P,
h_A2, lda,
h_B2, ldb,
h_c2, h_d2, h_x2,
h_work, lhwork, &info );
gpu_time = magma_wtime() - gpu_time;
gpu_perf = gflops / gpu_time;
if (info != 0) {
printf("magma_cgglse returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
// compute the residual
lapackf77_clacpy( MagmaFullStr, &M, &ione, h_c, &M, h_c2, &M );
blasf77_cgemm( MagmaNoTransStr, MagmaNoTransStr, &M, &ione, &N,
&c_neg_one, h_A, &lda,
h_x2, &N,
&c_one, h_c2, &M );
gpu_err1 = lapackf77_clange("f", &M, &ione, h_c2, &M, work);
lapackf77_clacpy( MagmaFullStr, &P, &ione, h_d, &P, h_d2, &P );
blasf77_cgemm( MagmaNoTransStr, MagmaNoTransStr, &P, &ione, &N,
&c_neg_one, h_B, &ldb,
h_x2, &N,
&c_one, h_d2, &P );
gpu_err2 = lapackf77_clange("f", &P, &ione, h_d2, &P, work);
/* =====================================================================
Performs operation using LAPACK
=================================================================== */
lapackf77_clacpy( MagmaFullStr, &M, &N, h_A, &lda, h_A2, &lda );
lapackf77_clacpy( MagmaFullStr, &P, &N, h_B, &ldb, h_B2, &ldb );
lapackf77_clacpy( MagmaFullStr, &M, &ione, h_c, &M, h_c2, &M );
lapackf77_clacpy( MagmaFullStr, &P, &ione, h_d, &P, h_d2, &P );
lapackf77_clacpy( MagmaFullStr, &N, &ione, h_x, &N, h_x2, &N );
cpu_time = magma_wtime();
lapackf77_cgglse( &M, &N, &P,
h_A2, &lda,
h_B2, &ldb,
h_c2, h_d2, h_x2,
h_work, &lhwork, &info );
cpu_time = magma_wtime() - cpu_time;
cpu_perf = gflops / cpu_time;
if (info != 0) {
printf("lapackf77_cgels returned error %lld: %s.\n",
(long long) info, magma_strerror( info ));
}
// compute the residual
lapackf77_clacpy( MagmaFullStr, &M, &ione, h_c, &M, h_c2, &M );
blasf77_cgemm( MagmaNoTransStr, MagmaNoTransStr, &M, &ione, &N,
&c_neg_one, h_A, &lda,
h_x2, &N,
&c_one, h_c2, &M );
cpu_err1 = lapackf77_clange("f", &M, &ione, h_c2, &M, work);
lapackf77_clacpy( MagmaFullStr, &P, &ione, h_d, &P, h_d2, &P );
blasf77_cgemm( MagmaNoTransStr, MagmaNoTransStr, &P, &ione, &N,
&c_neg_one, h_B, &ldb,
h_x2, &N,
&c_one, h_d2, &P );
cpu_err2 = lapackf77_clange("f", &P, &ione, h_d2, &P, work);
printf("%5lld %5lld %5lld %7.2f (%7.2f) %7.2f (%7.2f) %8.2e/%8.2e %8.2e/%8.2e",
(long long) M, (long long) N, (long long) P,
cpu_perf, cpu_time, gpu_perf, gpu_time, cpu_err1, cpu_err2, gpu_err1, gpu_err2);
printf( " %s\n", (0.9*gpu_err1 < cpu_err1 && 0.5*gpu_err2 < cpu_err2 ? "ok" : "failed"));
status += ! (0.9*gpu_err1 < cpu_err1 && 0.9*gpu_err2 < cpu_err2);
magma_free_cpu( h_A );
magma_free_pinned( h_A2 );
magma_free_cpu( h_B );
magma_free_cpu( h_B2 );
magma_free_cpu( h_R );
magma_free_cpu( h_work );
magma_free_cpu( h_c );
magma_free_cpu( h_d );
magma_free_cpu( h_x );
magma_free_cpu( h_c2 );
magma_free_cpu( h_d2 );
magma_free_cpu( h_x2 );
fflush( stdout );
}
if ( opts.niter > 1 ) {
printf( "\n" );
}
}
opts.cleanup();
TESTING_CHECK( magma_finalize() );
return status;
}
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