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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_zsolver_rhs_scaling.cpp, normal z -> d, Wed Jan 22 14:42:52 2025
@author Hartwig Anzt
@author Stephen Wood
*/
// 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_dopts zopts;
magma_queue_t queue=NULL;
magma_queue_create( 0, &queue );
//Chronometry
real_Double_t tempo1, tempo2, t_transfer = 0.0;
double one = MAGMA_D_MAKE(1.0, 0.0);
double zero = MAGMA_D_MAKE(0.0, 0.0);
double negone = MAGMA_D_MAKE(-1.0, 0.0);
magma_d_matrix A={Magma_CSR}, B={Magma_CSR}, B_d={Magma_CSR};
magma_d_matrix x={Magma_CSR}, x_h={Magma_CSR}, b_h={Magma_DENSE}, b={Magma_DENSE};
magma_d_matrix A_org={Magma_CSR};
magma_d_matrix b_org={Magma_DENSE};
magma_d_matrix scaling_factors={Magma_DENSE};
magma_d_matrix y_check={Magma_DENSE};
double residual = 0.0;
int i=1;
TESTING_CHECK( magma_dparse_opts( argc, argv, &zopts, &i, queue ));
// TODO: integrate option to specify which sides diagonal matrices
// of scaling factors are applied to the orginal matrix into the
// command line options
//magma_side_t side = MagmaLeft;
//magma_side_t side = MagmaRight;
magma_side_t side = MagmaBothSides;
B.blocksize = zopts.blocksize;
B.alignment = zopts.alignment;
// make sure preconditioner is NONE for unpreconditioned systems
if ( zopts.solver_par.solver != Magma_PCG &&
zopts.solver_par.solver != Magma_PCGMERGE &&
zopts.solver_par.solver != Magma_PGMRES &&
zopts.solver_par.solver != Magma_PBICGSTAB &&
zopts.solver_par.solver != Magma_ITERREF &&
zopts.solver_par.solver != Magma_PIDR &&
zopts.solver_par.solver != Magma_PCGS &&
zopts.solver_par.solver != Magma_PCGSMERGE &&
zopts.solver_par.solver != Magma_PTFQMR &&
zopts.solver_par.solver != Magma_PTFQMRMERGE &&
zopts.solver_par.solver != Magma_LOBPCG )
{
zopts.precond_par.solver = Magma_NONE;
}
TESTING_CHECK( magma_dsolverinfo_init( &zopts.solver_par, &zopts.precond_par, queue ));
// more iterations
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_dm_5stencil( laplace_size, &A, queue ));
TESTING_CHECK( magma_dvinit( &b_h, Magma_CPU, A.num_cols, 1, one, queue ));
} else { // file-matrix test
TESTING_CHECK( magma_d_csr_mtx( &A, argv[i], queue ));
if ( strcmp("ONES", argv[i+1]) == 0 ) {
TESTING_CHECK( magma_dvinit( &b_h, Magma_CPU, A.num_cols, 1, one, queue ));
}
else {
TESTING_CHECK( magma_dvread( &b_h, A.num_cols, argv[i+1], queue ));
}
i++;
}
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 );
printf("matrixinfo = [\n");
printf("%% size (m x n) || nonzeros (nnz) || nnz/m\n");
printf("%%=============================================================%%\n");
printf(" %8lld %8lld %10lld %10lld\n",
(long long) A.num_rows, (long long) A.num_cols, (long long) A.nnz,
(long long) (A.nnz/A.num_rows) );
printf("%%=============================================================%%\n");
printf("];\n");
// for the eigensolver case
zopts.solver_par.ev_length = A.num_cols;
TESTING_CHECK( magma_deigensolverinfo_init( &zopts.solver_par, queue ));
fflush(stdout);
t_transfer = 0.0;
zopts.precond_par.setuptime = 0.0;
zopts.precond_par.runtime = 0.0;
// copy the original system before scaling
TESTING_CHECK( magma_dmtransfer( A, &A_org, Magma_CPU, Magma_DEV, queue ));
TESTING_CHECK( magma_dmtransfer( b_h, &b_org, Magma_CPU, Magma_DEV, queue ));
// scale matrix
if ( zopts.scaling != Magma_NOSCALE ) {
TESTING_CHECK( magma_dvinit( &scaling_factors, Magma_CPU, A.num_rows, 1, zero, queue ));
// magma_dmscale_matrix_rhs to be deprecated
//TESTING_CHECK( magma_dmscale_matrix_rhs( &A, &b_h, &scaling_factors, zopts.scaling, queue ));
TESTING_CHECK( magma_dmscale_generate( 1, &zopts.scaling, &side,
&A, &scaling_factors, queue ) );
TESTING_CHECK( magma_dmscale_apply( 1, &side,
&scaling_factors, &A, queue ) );
TESTING_CHECK( magma_ddimv( &scaling_factors, &b_h, queue ) );
}
i++;
tempo1 = magma_sync_wtime( queue );
magma_d_vtransfer(b_h, &b, Magma_CPU, Magma_DEV, queue);
tempo2 = magma_sync_wtime( queue );
t_transfer += tempo2-tempo1;
// preconditioner
if ( zopts.solver_par.solver != Magma_ITERREF ) {
TESTING_CHECK( magma_d_precondsetup( A, b, &zopts.solver_par, &zopts.precond_par, queue ) );
}
// make sure alignment is 1 for SELLP
B.alignment = 1;
B.blocksize = 256;
TESTING_CHECK( magma_dmconvert( A, &B, Magma_CSR, zopts.output_format, queue ));
tempo1 = magma_sync_wtime( queue );
TESTING_CHECK( magma_dmtransfer( B, &B_d, Magma_CPU, Magma_DEV, queue ));
tempo2 = magma_sync_wtime( queue );
t_transfer += tempo2-tempo1;
TESTING_CHECK( magma_dvinit( &x, Magma_DEV, A.num_cols, 1, zero, queue ));
info = magma_d_solver( B_d, b, &x, &zopts, queue );
if( info != 0 ) {
printf("%% error: solver returned: %s (%lld).\n",
magma_strerror( info ), (long long) info );
}
TESTING_CHECK( magma_dvinit( &y_check, Magma_DEV, A.num_rows, 1, zero, queue ));
TESTING_CHECK( magma_d_spmv( one, B_d, x, zero, y_check, queue ) );
magma_daxpy( A.num_rows, negone, b.val, 1, y_check.val, 1, queue );
residual = magma_dnrm2( A.num_rows, y_check.val, 1, queue );
printf("%% scaled system residual check = %e\n", residual);
TESTING_CHECK( magma_dvinit( &y_check, Magma_DEV, A.num_rows, 1, zero, queue ));
TESTING_CHECK( magma_d_spmv( one, A_org, x, zero, y_check, queue ) );
magma_daxpy( A_org.num_rows, negone, b_org.val, 1, y_check.val, 1, queue );
residual = magma_dnrm2( A_org.num_rows, y_check.val, 1, queue );
printf("%% original system residual check = %e\n", residual);
if ( ( zopts.scaling != Magma_NOSCALE ) &&
( ( side == MagmaRight ) // Magma_UNITROWCOL and Magma_UNITDIAGCOL to be deprecated
|| ( side == MagmaBothSides )
|| ( zopts.scaling == Magma_UNITROWCOL )
|| ( zopts.scaling == Magma_UNITDIAGCOL ) ) ) {
printf("%% rescaling computed solution for scaling %d\n", zopts.scaling);
//magma_dmfree(&x_h, queue );
//magma_d_vtransfer(x, &x_h, Magma_DEV, Magma_CPU, queue);
//TESTING_CHECK( magma_ddimv( &scaling_factors, &x_h, queue ) );
TESTING_CHECK( magma_ddimv( &scaling_factors, &x, queue ) );
//magma_dmfree(&x, queue );
//magma_d_vtransfer(x_h, &x, Magma_CPU, Magma_DEV, queue);
TESTING_CHECK( magma_dvinit( &y_check, Magma_DEV, A.num_rows, 1, zero, queue ));
TESTING_CHECK( magma_d_spmv( one, A_org, x, zero, y_check, queue ) );
magma_daxpy( A_org.num_rows, negone, b_org.val, 1, y_check.val, 1, queue );
residual = magma_dnrm2( A_org.num_rows, y_check.val, 1, queue );
printf("%% original system residual check = %e\n", residual);
}
magma_dmfree(&x_h, queue );
tempo1 = magma_sync_wtime( queue );
magma_d_vtransfer(x, &x_h, Magma_DEV, Magma_CPU, queue);
tempo2 = magma_sync_wtime( queue );
t_transfer += tempo2-tempo1;
printf("data = [\n");
magma_dsolverinfo( &zopts.solver_par, &zopts.precond_par, queue );
printf("];\n\n");
printf("precond_info = [\n");
printf("%% setup runtime\n");
printf(" %.6f %.6f\n",
zopts.precond_par.setuptime, zopts.precond_par.runtime );
printf("];\n\n");
printf("transfer_time = %.6f;\n\n", t_transfer);
magma_dmfree(&x, queue );
magma_dmfree(&b, queue );
magma_dmfree(&B_d, queue );
magma_dmfree(&B, queue );
magma_dsolverinfo_free( &zopts.solver_par, &zopts.precond_par, queue );
fflush(stdout);
magma_dmfree(&B_d, queue );
magma_dmfree(&B, queue );
magma_dmfree(&A, queue );
magma_dmfree(&x, queue );
magma_dmfree(&x_h, queue );
magma_dmfree(&A_org, queue );
magma_dmfree(&b_org, queue );
magma_dmfree(&scaling_factors, queue );
magma_dmfree(&y_check, queue );
i++;
}
magma_queue_destroy( queue );
TESTING_CHECK( magma_finalize() );
return info;
}
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