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/* Copyright 2004,2007 ENSEIRB, INRIA & CNRS
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** This file is part of the Scotch software package for static mapping,
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** graph partitioning and sparse matrix ordering.
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** This software is governed by the CeCILL-C license under French law
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** and abiding by the rules of distribution of free software. You can
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** use, modify and/or redistribute the software under the terms of the
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** CeCILL-C license as circulated by CEA, CNRS and INRIA at the following
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** URL: "http://www.cecill.info".
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** As a counterpart to the access to the source code and rights to copy,
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** modify and redistribute granted by the license, users are provided
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** only with a limited warranty and the software's author, the holder of
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** the economic rights, and the successive licensors have only limited
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** In this respect, the user's attention is drawn to the risks associated
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** with loading, using, modifying and/or developing or reproducing the
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** software by the user in light of its specific status of free software,
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** that may mean that it is complicated to manipulate, and that also
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** therefore means that it is reserved for developers and experienced
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** professionals having in-depth computer knowledge. Users are therefore
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** encouraged to load and test the software's suitability as regards
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** their requirements in conditions enabling the security of their
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** systems and/or data to be ensured and, more generally, to use and
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** operate it in the same conditions as regards security.
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** The fact that you are presently reading this means that you have had
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** knowledge of the CeCILL-C license and that you accept its terms.
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/************************************************************/
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/** NAME : vgraph_store.c **/
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/** AUTHOR : Francois PELLEGRINI **/
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/** FUNCTION : This module contains the save data **/
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/** structure handling routines for separa- **/
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/** DATES : # Version 3.3 : from : 17 oct 1998 **/
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/** to 17 oct 1998 **/
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/** # Version 3.4 : from : 11 dec 2001 **/
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/** to : 11 dec 2001 **/
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/** # Version 4.0 : from : 01 jan 2002 **/
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/** to : 06 jan 2002 **/
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/************************************************************/
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** The defines and includes.
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/**********************************/
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/* Store graph handling routines. */
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/**********************************/
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/* This routine builds a save structure
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** for the given active graph.
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** - 0 : if allocation succeeded.
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const Vgraph * restrict const grafptr,
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VgraphStore * restrict const storptr)
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savsize = grafptr->s.vertnbr * (sizeof (GraphPart) + sizeof (Gnum)); /* Compute size for frontier and part arrays */
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if ((storptr->datatab = (byte *) memAlloc (savsize)) == NULL) { /* Allocate save structure */
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errorPrint ("vgraphStoreInit: out of memory");
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/* This routine frees a save structure.
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** - VOID : in all cases.
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VgraphStore * const storptr)
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memFree (storptr->datatab);
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#ifdef SCOTCH_DEBUG_VGRAPH2
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storptr->datatab = NULL;
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#endif /* SCOTCH_DEBUG_VGRAPH2 */
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/* This routine saves partition data from the
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** given active graph to the given save structure.
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** - VOID : in all cases.
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const Vgraph * const grafptr,
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VgraphStore * const storptr)
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byte * parttab; /* Pointer to part data save area */
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byte * frontab; /* Pointer to frontier data save area */
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storptr->fronnbr = grafptr->fronnbr; /* Save partition parameters */
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storptr->comploaddlt = grafptr->comploaddlt;
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storptr->compload[0] = grafptr->compload[0];
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storptr->compload[1] = grafptr->compload[1];
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storptr->compsize0 = grafptr->compsize[0];
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frontab = storptr->datatab; /* Compute data offsets within save structure */
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parttab = frontab + grafptr->fronnbr * sizeof (Gnum);
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memCpy (frontab, grafptr->frontab, grafptr->fronnbr * sizeof (Gnum));
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memCpy (parttab, grafptr->parttax + grafptr->s.baseval, grafptr->s.vertnbr * sizeof (GraphPart));
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/* This routine updates partition data of the
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** given active graph, using the given save graph.
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** - VOID : in all cases.
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Vgraph * const grafptr,
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const VgraphStore * const storptr)
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byte * frontab; /* Pointer to frontier data save area */
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byte * parttab; /* Pointer to part data save area */
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grafptr->compload[0] = storptr->compload[0]; /* Load partition parameters */
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grafptr->compload[1] = storptr->compload[1];
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grafptr->compload[2] = grafptr->s.velosum - (storptr->compload[0] + storptr->compload[1]);
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grafptr->comploaddlt = storptr->comploaddlt;
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grafptr->compsize[0] = storptr->compsize0;
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grafptr->compsize[1] = grafptr->s.vertnbr - (storptr->compsize0 + storptr->fronnbr);
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grafptr->fronnbr = storptr->fronnbr;
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frontab = storptr->datatab; /* Compute data offsets within save structure */
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parttab = frontab + grafptr->fronnbr * sizeof (Gnum);
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memCpy (grafptr->frontab, frontab, grafptr->fronnbr * sizeof (Gnum));
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memCpy (grafptr->parttax + grafptr->s.baseval, parttab, grafptr->s.vertnbr * sizeof (GraphPart));
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#ifdef SCOTCH_DEBUG_VGRAPH2
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if (vgraphCheck (grafptr) != 0)
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errorPrint ("vgraphStoreUpdt: inconsistent graph data");
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#endif /* SCOTCH_DEBUG_VGRAPH2 */
added
removed
src/libscotch/vgraph_store.c
