/usr/share/code_saturne/user_examples/cs_user_performance_tuning-matrix.c is in code-saturne-data 4.3.3+repack-1build1.
This file is owned by root:root, with mode 0o644.
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* Definition of advanced options relative to parallelism.
*============================================================================*/
/* Code_Saturne version 4.3.3 */
/*
This file is part of Code_Saturne, a general-purpose CFD tool.
Copyright (C) 1998-2016 EDF S.A.
This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
details.
You should have received a copy of the GNU General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 51 Franklin
Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/*----------------------------------------------------------------------------*/
#include "cs_defs.h"
/*----------------------------------------------------------------------------
* Standard C library headers
*----------------------------------------------------------------------------*/
#include <assert.h>
#include <math.h>
#include <stdarg.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
/*----------------------------------------------------------------------------
* Local headers
*----------------------------------------------------------------------------*/
#include "bft_error.h"
#include "bft_mem.h"
#include "bft_printf.h"
#include "cs_base.h"
#include "cs_file.h"
#include "cs_grid.h"
#include "cs_matrix.h"
#include "cs_matrix_default.h"
#include "cs_parall.h"
#include "cs_partition.h"
#include "cs_renumber.h"
/*----------------------------------------------------------------------------
* Header for the current file
*----------------------------------------------------------------------------*/
#include "cs_prototypes.h"
/*----------------------------------------------------------------------------*/
BEGIN_C_DECLS
/*----------------------------------------------------------------------------*/
/*!
* \file cs_user_performance_tuning-matrix.c
*
* \brief Matrix tuning example.
*
* See \subpage cs_user_performance_tuning for examples.
*/
/*----------------------------------------------------------------------------*/
/*============================================================================
* User function definitions
*============================================================================*/
/*----------------------------------------------------------------------------*/
/*!
* \brief Define sparse matrix tuning options.
*/
/*----------------------------------------------------------------------------*/
void
cs_user_matrix_tuning(void)
{
BEGIN_EXAMPLE_SCOPE
/*! [performance_tuning_matrix] */
/* Activate tuning of matrix-vector operations */
/* Set tuning runs (defaults) */
cs_matrix_set_tuning_runs(10, /* n_min_products */
0.5); /* t_measure */
/* Activate tuning for selected matrix fill types. */
cs_matrix_set_tuning(CS_MATRIX_SCALAR, 1);
cs_matrix_set_tuning(CS_MATRIX_SCALAR_SYM, 1);
/* Force variant for selected types */
cs_matrix_variant_t *mv
= cs_matrix_variant_create(CS_MATRIX_MSR,
cs_glob_mesh->i_face_numbering);
cs_matrix_variant_set_func(mv,
cs_glob_mesh->i_face_numbering,
CS_MATRIX_BLOCK_D,
2,
"default");
cs_matrix_set_variant(CS_MATRIX_BLOCK_D, mv);
cs_matrix_variant_destroy(&mv);
/* Also allow tuning for multigrid for all expected levels
* (we rarely have more than 10 or 11 levels except for huge meshes). */
cs_grid_set_matrix_tuning(CS_MATRIX_SCALAR_SYM, 12);
/*! [performance_tuning_matrix] */
END_EXAMPLE_SCOPE
}
/*----------------------------------------------------------------------------*/
END_C_DECLS
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