extern "C" magma_int_t
magma_d_solver(
magma_d_sparse_matrix A, magma_d_vector b,
magma_d_vector *x, magma_dopts *zopts,
magma_queue_t queue )
{
// preconditioner
if ( zopts->solver_par.solver != Magma_ITERREF ) {
magma_d_precondsetup( A, b, &zopts->precond_par, queue );
}
switch( zopts->solver_par.solver ) {
case Magma_CG:
magma_dcg_res( A, b, x, &zopts->solver_par, queue );break;
case Magma_CGMERGE:
magma_dcg_merge( A, b, x, &zopts->solver_par, queue );break;
case Magma_PCG:
magma_dpcg( A, b, x, &zopts->solver_par, &zopts->precond_par, queue );break;
case Magma_BICGSTAB:
magma_dbicgstab( A, b, x, &zopts->solver_par, queue );break;
case Magma_BICGSTABMERGE:
magma_dbicgstab_merge( A, b, x, &zopts->solver_par, queue );break;
case Magma_PBICGSTAB:
magma_dpbicgstab( A, b, x, &zopts->solver_par, &zopts->precond_par, queue );break;
case Magma_GMRES:
magma_dfgmres( A, b, x, &zopts->solver_par, &zopts->precond_par, queue );break;
case Magma_PGMRES:
magma_dfgmres( A, b, x, &zopts->solver_par, &zopts->precond_par, queue );break;
case Magma_LOBPCG:
magma_dlobpcg( A, &zopts->solver_par, queue );break;
case Magma_ITERREF:
magma_diterref( A, b, x, &zopts->solver_par, &zopts->precond_par, queue );break;
case Magma_JACOBI:
magma_djacobi( A, b, x, &zopts->solver_par, queue );break;
case Magma_BAITER:
magma_dbaiter( A, b, x, &zopts->solver_par, queue );break;
}
return MAGMA_SUCCESS;
}
/* ////////////////////////////////////////////////////////////////////////////
-- Debugging file
*/
int main( int argc, char** argv)
{
TESTING_INIT();
magma_d_solver_par solver_par;
magma_d_preconditioner precond_par;
solver_par.epsilon = 10e-16;
solver_par.maxiter = 1000;
solver_par.verbose = 0;
solver_par.restart = 30;
solver_par.num_eigenvalues = 0;
solver_par.ortho = Magma_CGS;
double one = MAGMA_D_MAKE(1.0, 0.0);
double zero = MAGMA_D_MAKE(0.0, 0.0);
magma_d_sparse_matrix A, B, B_d;
magma_d_vector x, b;
// generate matrix of desired structure and size
magma_int_t n=100; // size is n*n
magma_int_t nn = n*n;
magma_int_t offdiags = 2;
magma_index_t *diag_offset;
double *diag_vals;
magma_dmalloc_cpu( &diag_vals, offdiags+1 );
magma_index_malloc_cpu( &diag_offset, offdiags+1 );
diag_offset[0] = 0;
diag_offset[1] = 1;
diag_offset[2] = n;
diag_vals[0] = MAGMA_D_MAKE( 4.1, 0.0 );
diag_vals[1] = MAGMA_D_MAKE( -1.0, 0.0 );
diag_vals[2] = MAGMA_D_MAKE( -1.0, 0.0 );
magma_dmgenerator( nn, offdiags, diag_offset, diag_vals, &A );
// convert marix into desired format
B.storage_type = Magma_SELLC;
B.blocksize = 8;
B.alignment = 8;
// scale matrix
magma_dmscale( &A, Magma_UNITDIAG );
magma_d_mconvert( A, &B, Magma_CSR, B.storage_type );
magma_d_mtransfer( B, &B_d, Magma_CPU, Magma_DEV );
// test CG ####################################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// solver
magma_dcg_res( B_d, b, &x, &solver_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
// test PCG Jacobi ############################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// Preconditioner
precond_par.solver = Magma_JACOBI;
magma_d_precondsetup( B_d, b, &precond_par );
// solver
magma_dpcg( B_d, b, &x, &solver_par, &precond_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
// test PCG IC ################################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// Preconditioner
precond_par.solver = Magma_ICC;
magma_d_precondsetup( B_d, b, &precond_par );
// solver
magma_dpcg( B_d, b, &x, &solver_par, &precond_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
// test PCG IC ################################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// Preconditioner
precond_par.solver = Magma_ICC;
magma_d_precondsetup( B_d, b, &precond_par );
// solver
magma_dpcg( B_d, b, &x, &solver_par, &precond_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
// test BICGSTAB ####################################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// solver
magma_dbicgstab( B_d, b, &x, &solver_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
// test PBICGSTAB Jacobi ############################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// Preconditioner
precond_par.solver = Magma_JACOBI;
magma_d_precondsetup( B_d, b, &precond_par );
// solver
magma_dpbicgstab( B_d, b, &x, &solver_par, &precond_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
/*
// test PBICGSTAB ILU ###############################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// Preconditioner
precond_par.solver = Magma_ILU;
magma_d_precondsetup( B_d, b, &precond_par );
// solver
magma_dpbicgstab( B_d, b, &x, &solver_par, &precond_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
// test PBICGSTAB ILU ###############################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);printf("here\n");
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// Preconditioner
precond_par.solver = Magma_ILU;
magma_d_precondsetup( B_d, b, &precond_par );
// solver
magma_dpbicgstab( B_d, b, &x, &solver_par, &precond_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
// test GMRES ####################################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// solver
magma_dgmres( B_d, b, &x, &solver_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
// test PGMRES Jacobi ############################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// Preconditioner
precond_par.solver = Magma_JACOBI;
magma_d_precondsetup( B_d, b, &precond_par );
// solver
magma_dpgmres( B_d, b, &x, &solver_par, &precond_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);*/
// test PGMRES ILU ###############################
// vectors and initial guess
magma_d_vinit( &b, Magma_DEV, A.num_cols, one );
magma_d_vinit( &x, Magma_DEV, A.num_cols, one );
magma_d_spmv( one, B_d, x, zero, b ); // b = A x
magma_d_vfree(&x);
magma_d_vinit( &x, Magma_DEV, A.num_cols, zero );
magma_dsolverinfo_init( &solver_par, &precond_par );
// Preconditioner
precond_par.solver = Magma_ILU;
magma_d_precondsetup( B_d, b, &precond_par );
// solver
magma_dpgmres( B_d, b, &x, &solver_par, &precond_par );
// solverinfo
magma_dsolverinfo( &solver_par, &precond_par );
if( solver_par.numiter > 150 ){
printf("error: test not passed!\n"); exit(-1);
}
magma_dsolverinfo_free( &solver_par, &precond_par );
magma_d_vfree(&x);
magma_d_vfree(&b);
printf("all tests passed.\n");
magma_d_mfree(&B_d);
magma_d_mfree(&B);
magma_d_mfree(&A);
TESTING_FINALIZE();
return 0;
}