179 lines
5.2 KiB
C
179 lines
5.2 KiB
C
/*BHEADER**********************************************************************
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* (c) 1998 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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* Struct matrix-vector implementation of PCG interface routines.
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*
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*****************************************************************************/
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#include "headers.h"
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/*--------------------------------------------------------------------------
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* hypre_PCGCAlloc
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*--------------------------------------------------------------------------*/
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char *
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hypre_PCGCAlloc( int count,
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int elt_size )
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{
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return( hypre_CAlloc( count, elt_size ) );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGFree
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*--------------------------------------------------------------------------*/
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int
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hypre_PCGFree( char *ptr )
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{
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int ierr = 0;
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hypre_Free( ptr );
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return ierr;
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGCreateVector
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*--------------------------------------------------------------------------*/
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void *
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hypre_PCGCreateVector( void *vvector )
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{
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hypre_StructVector *vector = vvector;
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hypre_StructVector *new_vector;
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new_vector = hypre_StructVectorCreate( hypre_StructVectorComm(vector),
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hypre_StructVectorGrid(vector) );
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hypre_StructVectorInitialize(new_vector);
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hypre_StructVectorAssemble(new_vector);
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return ( (void *) new_vector );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGDestroyVector
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*--------------------------------------------------------------------------*/
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int
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hypre_PCGDestroyVector( void *vvector )
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{
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hypre_StructVector *vector = vvector;
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return( hypre_StructVectorDestroy( vector ) );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGMatvecCreate
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*--------------------------------------------------------------------------*/
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void *
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hypre_PCGMatvecCreate( void *A,
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void *x )
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{
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void *matvec_data;
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matvec_data = hypre_StructMatvecCreate();
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hypre_StructMatvecSetup(matvec_data, A, x);
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return ( matvec_data );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGMatvec
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*--------------------------------------------------------------------------*/
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int
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hypre_PCGMatvec( void *matvec_data,
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double alpha,
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void *A,
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void *x,
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double beta,
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void *y )
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{
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return ( hypre_StructMatvecCompute( matvec_data,
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alpha,
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(hypre_StructMatrix *) A,
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(hypre_StructVector *) x,
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beta,
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(hypre_StructVector *) y ) );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGMatvecDestroy
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*--------------------------------------------------------------------------*/
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int
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hypre_PCGMatvecDestroy( void *matvec_data )
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{
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return ( hypre_StructMatvecDestroy( matvec_data ) );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGInnerProd
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*--------------------------------------------------------------------------*/
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double
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hypre_PCGInnerProd( void *x,
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void *y )
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{
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return ( hypre_StructInnerProd( (hypre_StructVector *) x,
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(hypre_StructVector *) y ) );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGCopyVector
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*--------------------------------------------------------------------------*/
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int
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hypre_PCGCopyVector( void *x,
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void *y )
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{
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return ( hypre_StructCopy( (hypre_StructVector *) x,
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(hypre_StructVector *) y ) );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGClearVector
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*--------------------------------------------------------------------------*/
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int
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hypre_PCGClearVector( void *x )
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{
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return ( hypre_StructVectorSetConstantValues( (hypre_StructVector *) x,
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0.0 ) );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGScaleVector
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*--------------------------------------------------------------------------*/
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int
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hypre_PCGScaleVector( double alpha,
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void *x )
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{
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return ( hypre_StructScale( alpha, (hypre_StructVector *) x ) );
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}
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/*--------------------------------------------------------------------------
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* hypre_PCGAxpy
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*--------------------------------------------------------------------------*/
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int
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hypre_PCGAxpy( double alpha,
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void *x,
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void *y )
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{
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return ( hypre_StructAxpy( alpha, (hypre_StructVector *) x,
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(hypre_StructVector *) y ) );
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}
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