/* Copyright 2007,2012,2019 IPB, Universite de Bordeaux, INRIA & CNRS
**
** This file is part of the Scotch software package for static mapping,
** graph partitioning and sparse matrix ordering.
**
** This software is governed by the CeCILL-C license under French law
** and abiding by the rules of distribution of free software. You can
** use, modify and/or redistribute the software under the terms of the
** CeCILL-C license as circulated by CEA, CNRS and INRIA at the following
** URL: "http://www.cecill.info".
**
** As a counterpart to the access to the source code and rights to copy,
** modify and redistribute granted by the license, users are provided
** only with a limited warranty and the software's author, the holder of
** the economic rights, and the successive licensors have only limited
** liability.
**
** In this respect, the user's attention is drawn to the risks associated
** with loading, using, modifying and/or developing or reproducing the
** software by the user in light of its specific status of free software,
** that may mean that it is complicated to manipulate, and that also
** therefore means that it is reserved for developers and experienced
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**
** The fact that you are presently reading this means that you have had
** knowledge of the CeCILL-C license and that you accept its terms.
*/
/************************************************************/
/**                                                        **/
/**   NAME       : library_dgraph_order_tree_dist.c        **/
/**                                                        **/
/**   AUTHOR     : Francois PELLEGRINI                     **/
/**                                                        **/
/**   FUNCTION   : This module is the API for the distri-  **/
/**                buted ordering distributed tree         **/
/**                building routine of the libSCOTCH       **/
/**                library.                                **/
/**                                                        **/
/**   DATES      : # Version 5.1  : from : 30 nov 2007     **/
/**                                 to   : 30 nov 2007     **/
/**                # Version 6.0  : from : 29 nov 2012     **/
/**                                 to   : 29 nov 2012     **/
/**                # Version 7.0  : from : 20 sep 2019     **/
/**                                 to   : 20 sep 2019     **/
/**                                                        **/
/************************************************************/

/*
**  The defines and includes.
*/

#define LIBRARY

#include "module.h"
#include "common.h"
#include "context.h"
#include "dgraph.h"
#include "dorder.h"
#include "ptscotch.h"

/************************************/
/*                                  */
/* These routines are the C API for */
/* the distributed ordering         */
/* handling routines.               */
/*                                  */
/************************************/

/*+ This routine returns the number of
*** distributed column blocks contained
*** in the given distributed ordering.
*** It returns:
*** - >=0  : on success.
*** - <0   : on error.
+*/

SCOTCH_Num
SCOTCH_dgraphOrderCblkDist (
const SCOTCH_Dgraph * const     grafptr,          /*+ Graph to order    +*/
const SCOTCH_Dordering * const  ordeptr)          /*+ Computed ordering +*/
{
  return (dorderCblkDist ((Dorder *) ordeptr));
}

/*+ This routine fills the given distributed
*** permutation array with the permutation
*** stored in the given distributed ordering.
*** It returns:
*** - 0   : on success.
*** - !0  : on error.
+*/

int
SCOTCH_dgraphOrderTreeDist (
const SCOTCH_Dgraph * const     grafptr,          /*+ Graph to order    +*/
const SCOTCH_Dordering * const  ordeptr,          /*+ Computed ordering +*/
SCOTCH_Num * const              treeglbtab,       /*+ Father array      +*/
SCOTCH_Num * const              sizeglbtab)       /*+ Size array        +*/
{
  return (dorderTreeDist ((Dorder *) ordeptr, (Dgraph *) CONTEXTOBJECT (grafptr), treeglbtab, sizeglbtab));
}
