136 lines
4.2 KiB
C
136 lines
4.2 KiB
C
/*BHEADER**********************************************************************
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* (c) 1997 The Regents of the University of California
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*
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* See the file COPYRIGHT_and_DISCLAIMER for a complete copyright
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* notice, contact person, and disclaimer.
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*
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* $Revision$
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*********************************************************************EHEADER*/
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/******************************************************************************
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*
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* Member functions for hypre_DistributedMatrix class for PETSc storage scheme.
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*
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*****************************************************************************/
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#include "./distributed_matrix.h"
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/* Public headers and prototypes for PETSc matrix library */
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#ifdef PETSC_AVAILABLE
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#include "sles.h"
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#endif
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/*--------------------------------------------------------------------------
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* hypre_DistributedMatrixDestroyPETSc
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* Internal routine for freeing a matrix stored in PETSc form.
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*--------------------------------------------------------------------------*/
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int
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hypre_DistributedMatrixDestroyPETSc( hypre_DistributedMatrix *distributed_matrix )
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{
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#ifdef PETSC_AVAILABLE
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Mat PETSc_matrix = (Mat) hypre_DistributedMatrixLocalStorage(distributed_matrix);
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MatDestroy( PETSc_matrix );
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#endif
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return(0);
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}
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/*--------------------------------------------------------------------------
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* Optional routines that depend on underlying storage type
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*--------------------------------------------------------------------------*/
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/*--------------------------------------------------------------------------
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* hypre_DistributedMatrixPrintPETSc
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* Internal routine for printing a matrix stored in PETSc form.
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*--------------------------------------------------------------------------*/
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int
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hypre_DistributedMatrixPrintPETSc( hypre_DistributedMatrix *matrix )
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{
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int ierr=0;
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#ifdef PETSC_AVAILABLE
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Mat PETSc_matrix = (Mat) hypre_DistributedMatrixLocalStorage(matrix);
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ierr = MatView( PETSc_matrix, VIEWER_STDOUT_WORLD );
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#endif
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return(ierr);
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}
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/*--------------------------------------------------------------------------
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* hypre_DistributedMatrixGetLocalRangePETSc
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*--------------------------------------------------------------------------*/
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int
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hypre_DistributedMatrixGetLocalRangePETSc( hypre_DistributedMatrix *matrix,
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int *start,
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int *end )
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{
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int ierr=0;
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#ifdef PETSC_AVAILABLE
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Mat PETSc_matrix = (Mat) hypre_DistributedMatrixLocalStorage(matrix);
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if (!PETSc_matrix) return(-1);
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ierr = MatGetOwnershipRange( PETSc_matrix, start, end ); CHKERRA(ierr);
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/*
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Since PETSc's MatGetOwnershipRange actually returns
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end = "one more than the global index of the last local row",
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we need to subtract one; hypre assumes we return the index
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of the last row itself.
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*/
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*end = *end - 1;
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#endif
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return(ierr);
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}
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/*--------------------------------------------------------------------------
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* hypre_DistributedMatrixGetRowPETSc
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*--------------------------------------------------------------------------*/
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int
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hypre_DistributedMatrixGetRowPETSc( hypre_DistributedMatrix *matrix,
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int row,
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int *size,
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int **col_ind,
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double **values )
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{
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int ierr=0;
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#ifdef PETSC_AVAILABLE
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Mat PETSc_matrix = (Mat) hypre_DistributedMatrixLocalStorage(matrix);
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if (!PETSc_matrix) return(-1);
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ierr = MatGetRow( PETSc_matrix, row, size, col_ind, values); CHKERRA(ierr);
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#endif
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return(ierr);
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}
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/*--------------------------------------------------------------------------
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* hypre_DistributedMatrixRestoreRowPETSc
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*--------------------------------------------------------------------------*/
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int
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hypre_DistributedMatrixRestoreRowPETSc( hypre_DistributedMatrix *matrix,
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int row,
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int *size,
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int **col_ind,
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double **values )
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{
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int ierr=0;
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#ifdef PETSC_AVAILABLE
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Mat PETSc_matrix = (Mat) hypre_DistributedMatrixLocalStorage(matrix);
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if (PETSc_matrix == NULL) return(-1);
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ierr = MatRestoreRow( PETSc_matrix, row, size, col_ind, values); CHKERRA(ierr);
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#endif
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return(ierr);
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}
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