| 1 | /*BHEADER**********************************************************************
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| 2 | * Copyright (c) 2008, Lawrence Livermore National Security, LLC.
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| 3 | * Produced at the Lawrence Livermore National Laboratory.
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| 4 | * This file is part of HYPRE. See file COPYRIGHT for details.
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| 5 | *
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| 6 | * HYPRE is free software; you can redistribute it and/or modify it under the
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| 7 | * terms of the GNU Lesser General Public License (as published by the Free
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| 8 | * Software Foundation) version 2.1 dated February 1999.
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| 9 | *
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| 10 | * $Revision: 2.4 $
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| 11 | ***********************************************************************EHEADER*/
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| 12 |
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| 13 |
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| 14 |
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| 15 | /******************************************************************************
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| 16 | *
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| 17 | * SStruct scale routine
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| 18 | *
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| 19 | *****************************************************************************/
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| 20 |
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| 21 | #include "headers.h"
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| 22 |
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| 23 | /*--------------------------------------------------------------------------
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| 24 | * hypre_SStructPScale
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| 25 | *--------------------------------------------------------------------------*/
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| 26 |
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| 27 | int
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| 28 | hypre_SStructPScale( double alpha,
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| 29 | hypre_SStructPVector *py )
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| 30 | {
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| 31 | int ierr = 0;
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| 32 | int nvars = hypre_SStructPVectorNVars(py);
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| 33 | int var;
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| 34 |
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| 35 | for (var = 0; var < nvars; var++)
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| 36 | {
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| 37 | hypre_StructScale(alpha, hypre_SStructPVectorSVector(py, var));
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| 38 | }
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| 39 |
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| 40 | return ierr;
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| 41 | }
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| 42 |
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| 43 | /*--------------------------------------------------------------------------
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| 44 | * hypre_SStructScale
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| 45 | *--------------------------------------------------------------------------*/
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| 46 |
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| 47 | int
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| 48 | hypre_SStructScale( double alpha,
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| 49 | hypre_SStructVector *y )
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| 50 | {
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| 51 | int ierr = 0;
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| 52 | int nparts = hypre_SStructVectorNParts(y);
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| 53 | int part;
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| 54 | int y_object_type= hypre_SStructVectorObjectType(y);
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| 55 |
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| 56 | if (y_object_type == HYPRE_SSTRUCT)
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| 57 | {
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| 58 | for (part = 0; part < nparts; part++)
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| 59 | {
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| 60 | hypre_SStructPScale(alpha, hypre_SStructVectorPVector(y, part));
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| 61 | }
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| 62 | }
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| 63 |
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| 64 | else if (y_object_type == HYPRE_PARCSR)
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| 65 | {
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| 66 | hypre_ParVector *y_par;
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| 67 |
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| 68 | hypre_SStructVectorConvert(y, &y_par);
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| 69 | hypre_ParVectorScale(alpha, y_par);
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| 70 | }
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| 71 |
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| 72 | return ierr;
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| 73 | }
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