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/*
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 * -- High Performance Computing Linpack Benchmark (HPL)
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 *    HPL - 2.0 - September 10, 2008
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 *    Antoine P. Petitet
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 *    University of Tennessee, Knoxville
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 *    Innovative Computing Laboratory
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 *    (C) Copyright 2000-2008 All Rights Reserved
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 *
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 * -- Copyright notice and Licensing terms:
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 *
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 * Redistribution  and  use in  source and binary forms, with or without
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 * modification, are  permitted provided  that the following  conditions
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 * are met:
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 *
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 * 1. Redistributions  of  source  code  must retain the above copyright
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 * notice, this list of conditions and the following disclaimer.
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 *
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 * 2. Redistributions in binary form must reproduce  the above copyright
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 * notice, this list of conditions,  and the following disclaimer in the
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 * documentation and/or other materials provided with the distribution.
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 *
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 * 3. All  advertising  materials  mentioning  features  or  use of this
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 * software must display the following acknowledgement:
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 * This  product  includes  software  developed  at  the  University  of
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 * Tennessee, Knoxville, Innovative Computing Laboratory.
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 *
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 * 4. The name of the  University,  the name of the  Laboratory,  or the
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 * names  of  its  contributors  may  not  be used to endorse or promote
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 * products  derived   from   this  software  without  specific  written
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 * permission.
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 *
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 * -- Disclaimer:
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 *
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 * THIS  SOFTWARE  IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,  INCLUDING,  BUT NOT
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY
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 * OR  CONTRIBUTORS  BE  LIABLE FOR ANY  DIRECT,  INDIRECT,  INCIDENTAL,
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 * SPECIAL,  EXEMPLARY,  OR  CONSEQUENTIAL DAMAGES  (INCLUDING,  BUT NOT
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 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA OR PROFITS; OR BUSINESS INTERRUPTION)  HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT,  STRICT LIABILITY,  OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * ---------------------------------------------------------------------
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 */
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/*
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 * Include files
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 */
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#include "hpl.h"
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#ifdef STDC_HEADERS
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int HPL_grid_exit
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(
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   HPL_T_grid *                     GRID
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)
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#else
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int HPL_grid_exit
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( GRID )
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   HPL_T_grid *                     GRID;
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#endif
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{
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/*
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 * Purpose
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 * =======
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 *
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 * HPL_grid_exit marks  the process  grid object for  deallocation.  The
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 * returned  error  code  MPI_SUCCESS  indicates  successful completion.
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 * Other error codes are (MPI) implementation dependent.
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 *
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 * Arguments
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 * =========
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 *
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 * GRID    (local input/output)          HPL_T_grid *
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 *         On entry,  GRID  points  to the data structure containing the
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 *         process grid to be released.
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 *
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 * ---------------------------------------------------------------------
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 */
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/*
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 * .. Local Variables ..
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 */
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   int                        hplerr = MPI_SUCCESS, mpierr;
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/* ..
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 * .. Executable Statements ..
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 */
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   if( GRID->all_comm != MPI_COMM_NULL )
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   {
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      mpierr = MPI_Comm_free( &(GRID->row_comm) );
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      if( mpierr != MPI_SUCCESS ) hplerr = mpierr;
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      mpierr = MPI_Comm_free( &(GRID->col_comm) );
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      if( mpierr != MPI_SUCCESS ) hplerr = mpierr;
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      mpierr = MPI_Comm_free( &(GRID->all_comm) );
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      if( mpierr != MPI_SUCCESS ) hplerr = mpierr;
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   }
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   GRID->order   = HPL_COLUMN_MAJOR;
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   GRID->iam     = GRID->myrow    = GRID->mycol     = -1;
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   GRID->nprow   = GRID->npcol    = GRID->nprocs    = -1;
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   GRID->row_ip2 = GRID->row_hdim = GRID->row_ip2m1 = GRID->row_mask = -1;
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   GRID->col_ip2 = GRID->col_hdim = GRID->col_ip2m1 = GRID->col_mask = -1;
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   return( hplerr );
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/*
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 * End of HPL_grid_exit
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 */
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}