84 lines
2.3 KiB
C
84 lines
2.3 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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* Routine for building a DistributedMatrix from a ParCSRMatrix
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*
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*****************************************************************************/
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#ifdef HYPRE_DEBUG
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#include <gmalloc.h>
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#endif
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#include <HYPRE_config.h>
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#include "general.h"
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#include "HYPRE.h"
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#include "HYPRE_utilities.h"
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/* Prototypes for DistributedMatrix */
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#include "HYPRE_distributed_matrix_types.h"
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#include "HYPRE_distributed_matrix_protos.h"
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/* Matrix prototypes for ParCSR */
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#include "HYPRE_parcsr_mv.h"
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/*--------------------------------------------------------------------------
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* HYPRE_ConvertParCSRMatrixToDistributedMatrix
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*--------------------------------------------------------------------------*/
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int
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HYPRE_ConvertParCSRMatrixToDistributedMatrix(
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HYPRE_ParCSRMatrix parcsr_matrix,
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HYPRE_DistributedMatrix *DistributedMatrix )
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{
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int ierr;
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MPI_Comm comm;
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int M, N;
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#ifdef HYPRE_TIMING
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int timer;
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timer = hypre_InitializeTiming( "ConvertParCSRMatrisToDistributedMatrix");
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hypre_BeginTiming( timer );
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#endif
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if (!parcsr_matrix) return(-1);
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ierr = HYPRE_ParCSRMatrixGetComm( parcsr_matrix, &comm);
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ierr = HYPRE_DistributedMatrixCreate( comm, DistributedMatrix );
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ierr = HYPRE_DistributedMatrixSetLocalStorageType( *DistributedMatrix,
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HYPRE_PARCSR );
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if(ierr) return(ierr);
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ierr = HYPRE_DistributedMatrixInitialize( *DistributedMatrix );
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if(ierr) return(ierr);
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ierr = HYPRE_DistributedMatrixSetLocalStorage( *DistributedMatrix, parcsr_matrix );
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if(ierr) return(ierr);
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ierr = HYPRE_ParCSRMatrixGetDims( parcsr_matrix, &M, &N); if(ierr) return(ierr);
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ierr = HYPRE_DistributedMatrixSetDims( *DistributedMatrix, M, N);
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ierr = HYPRE_DistributedMatrixAssemble( *DistributedMatrix );
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if(ierr) return(ierr);
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#ifdef HYPRE_TIMING
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hypre_EndTiming( timer );
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/* hypre_FinalizeTiming( timer ); */
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#endif
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return(0);
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}
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