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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 sparse/testing/testing_zpreconditioner.cpp, normal z -> s, Wed Jan 22 14:42:52 2025
@author Hartwig Anzt
*/
// includes, system
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
// includes, project
#include "magma_v2.h"
#include "magmasparse.h"
#include "testings.h"
/* ////////////////////////////////////////////////////////////////////////////
-- testing any solver
*/
int main( int argc, char** argv )
{
magma_int_t info = 0;
TESTING_CHECK( magma_init() );
magma_print_environment();
magma_sopts zopts;
magma_queue_t queue=NULL;
magma_queue_create( 0, &queue );
float one = MAGMA_S_MAKE(1.0, 0.0);
float zero = MAGMA_S_MAKE(0.0, 0.0);
magma_s_matrix A={Magma_CSR}, B={Magma_CSR}, dB={Magma_CSR};
magma_s_matrix x={Magma_CSR}, b={Magma_CSR}, t={Magma_CSR};
magma_s_matrix x1={Magma_CSR}, x2={Magma_CSR};
//Chronometry
real_Double_t tempo1, tempo2;
int i=1;
TESTING_CHECK( magma_sparse_opts( argc, argv, &zopts, &i, queue ));
B.blocksize = zopts.blocksize;
B.alignment = zopts.alignment;
TESTING_CHECK( magma_ssolverinfo_init( &zopts.solver_par, &zopts.precond_par, queue ));
while( i < argc ) {
if ( strcmp("LAPLACE2D", argv[i]) == 0 && i+1 < argc ) { // Laplace test
i++;
magma_int_t laplace_size = atoi( argv[i] );
TESTING_CHECK( magma_sm_5stencil( laplace_size, &A, queue ));
} else { // file-matrix test
TESTING_CHECK( magma_s_csr_mtx( &A, argv[i], queue ));
}
printf( "\n%% matrix info: %lld-by-%lld with %lld nonzeros\n\n",
(long long) A.num_rows, (long long) A.num_cols, (long long) A.nnz );
// for the eigensolver case
zopts.solver_par.ev_length = A.num_rows;
TESTING_CHECK( magma_seigensolverinfo_init( &zopts.solver_par, queue ));
// scale matrix
TESTING_CHECK( magma_smscale( &A, zopts.scaling, queue ));
TESTING_CHECK( magma_smconvert( A, &B, Magma_CSR, zopts.output_format, queue ));
TESTING_CHECK( magma_smtransfer( B, &dB, Magma_CPU, Magma_DEV, queue ));
// vectors and initial guess
TESTING_CHECK( magma_svinit( &b, Magma_DEV, A.num_cols, 1, one, queue ));
TESTING_CHECK( magma_svinit( &x, Magma_DEV, A.num_cols, 1, zero, queue ));
TESTING_CHECK( magma_svinit( &t, Magma_DEV, A.num_cols, 1, zero, queue ));
TESTING_CHECK( magma_svinit( &x1, Magma_DEV, A.num_cols, 1, zero, queue ));
TESTING_CHECK( magma_svinit( &x2, Magma_DEV, A.num_cols, 1, zero, queue ));
//preconditioner
TESTING_CHECK( magma_s_precondsetup( dB, b, &zopts.solver_par, &zopts.precond_par, queue ) );
float residual;
TESTING_CHECK( magma_sresidual( dB, b, x, &residual, queue ));
zopts.solver_par.init_res = residual;
printf("data = [\n");
printf("%%runtime left preconditioner:\n");
tempo1 = magma_sync_wtime( queue );
info = magma_s_applyprecond_left( MagmaNoTrans, dB, b, &x1, &zopts.precond_par, queue );
tempo2 = magma_sync_wtime( queue );
if( info != 0 ){
printf("error: preconditioner returned: %s (%lld).\n",
magma_strerror( info ), (long long) info );
}
TESTING_CHECK( magma_sresidual( dB, b, x1, &residual, queue ));
printf("%.8e %.8e\n", tempo2-tempo1, residual );
printf("%%runtime right preconditioner:\n");
tempo1 = magma_sync_wtime( queue );
info = magma_s_applyprecond_right( MagmaNoTrans, dB, b, &x2, &zopts.precond_par, queue );
tempo2 = magma_sync_wtime( queue );
if( info != 0 ){
printf("error: preconditioner returned: %s (%lld).\n",
magma_strerror( info ), (long long) info );
}
TESTING_CHECK( magma_sresidual( dB, b, x2, &residual, queue ));
printf("%.8e %.8e\n", tempo2-tempo1, residual );
printf("];\n");
info = magma_s_applyprecond_left( MagmaNoTrans, dB, b, &t, &zopts.precond_par, queue );
info = magma_s_applyprecond_right( MagmaNoTrans, dB, t, &x, &zopts.precond_par, queue );
TESTING_CHECK( magma_sresidual( dB, b, x, &residual, queue ));
zopts.solver_par.final_res = residual;
magma_ssolverinfo( &zopts.solver_par, &zopts.precond_par, queue );
magma_smfree(&dB, queue );
magma_smfree(&B, queue );
magma_smfree(&A, queue );
magma_smfree(&x, queue );
magma_smfree(&x1, queue );
magma_smfree(&x2, queue );
magma_smfree(&b, queue );
magma_smfree(&t, queue );
i++;
}
magma_queue_destroy( queue );
TESTING_CHECK( magma_finalize() );
return info;
}
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