cs_partition.c File Reference

#include "cs_defs.h"
#include <assert.h>
#include <errno.h>
#include <locale.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "bft_error.h"
#include "bft_mem.h"
#include "bft_printf.h"
#include "fvm_io_num.h"
#include "cs_all_to_all.h"
#include "cs_base.h"
#include "cs_block_dist.h"
#include "cs_block_to_part.h"
#include "cs_file.h"
#include "cs_io.h"
#include "cs_log.h"
#include "cs_mesh.h"
#include "cs_mesh_builder.h"
#include "cs_part_to_block.h"
#include "cs_timer.h"
#include "cs_partition.h"

Include dependency graph for cs_partition.c:

Functions
void	cs_partition_external_library_info (void)
	Print information on external libraries. More...
void	cs_partition_set_algorithm (cs_partition_stage_t stage, cs_partition_algorithm_t algorithm, int rank_step, bool ignore_perio)
	Set algorithm for domain partitioning. More...
void	cs_partition_set_write_level (int write_flag)
	Set partitioning write to file option. More...
void	cs_partition_set_preprocess_hints (bool join, bool join_periodic)
	Define hints indicating if initial partitioning fo a preprocessing stage is required. More...
void	cs_partition_set_preprocess (bool active)
	Activate or deactivate initial partitioning for preprocessing. More...
bool	cs_partition_get_preprocess (void)
	Indicate if re-partitiong for the computation stage is required. More...
void	cs_partition_add_partitions (int n_extra_partitions, int extra_partitions_list[])
	Define list of extra partitionings to build. More...
void	cs_partition (cs_mesh_t *mesh, cs_mesh_builder_t *mb, cs_partition_stage_t stage)
	Partition mesh based on current options. More...

Function Documentation

cs_partition()

void cs_partition	(	cs_mesh_t *	mesh,
		cs_mesh_builder_t *	mb,
		cs_partition_stage_t	stage
	)

Partition mesh based on current options.

Parameters

[in]	mesh	pointer to mesh structure
[in,out]	mb	pointer to mesh builder structure
[in]	stage	associated partitioning stage

cs_partition_add_partitions()

void cs_partition_add_partitions	(	int	n_extra_partitions,
		int	extra_partitions_list[]
	)

Define list of extra partitionings to build.

Partitionings in this list will be output to file, and may be used for subsequent calculations.

When partitioning for both preprocessing and calculation stages, output to file of partioning data or generation of additional partitionings (see cs_partition_add_partitions) will only be done for the second stage.

Parameters

[in]	n_extra_partitions	number of extra partitionings to compute
[in]	extra_partitions_list	list of extra partitions to compute

cs_partition_external_library_info()

void cs_partition_external_library_info

(

void

)

Print information on external libraries.

cs_partition_get_preprocess()

bool cs_partition_get_preprocess

(

void

)

Indicate if re-partitiong for the computation stage is required.

Returns

true if initial partitioning for preprocessing is active, false otherwise

cs_partition_set_algorithm()

void cs_partition_set_algorithm	(	cs_partition_stage_t	stage,
		cs_partition_algorithm_t	algorithm,
		int	rank_step,
		bool	ignore_perio
	)

Set algorithm for domain partitioning.

Parameters

[in]	stage	associated partitioning stage
[in]	algorithm	partitioning algorithm choice
[in]	rank_step	if > 1, partitioning done on at most n_ranks / rank_step processes (for graph-based partitioning only)
[in]	ignore_perio	if true, ignore periodicity information when present (for graph-based partitioning only)

cs_partition_set_preprocess()

void cs_partition_set_preprocess

(

bool

active

)

Activate or deactivate initial partitioning for preprocessing.

Parameters

[in]

active

true to activate pre-partitiong for the preprocessing stage, false to de-activate it

cs_partition_set_preprocess_hints()

void cs_partition_set_preprocess_hints	(	bool	join,
		bool	join_periodic
	)

Define hints indicating if initial partitioning fo a preprocessing stage is required.

Parameters

[in]	join	true if a mesh joining operation is planned.
[in]	join_periodic	true if a mesh periodic matching operation is planned

cs_partition_set_write_level()

void cs_partition_set_write_level

(

int

write_flag

)

Set partitioning write to file option.

Partitioning information for subsequent calculations is written to file after the last partitioning stage depending on the output level.

Note that partitioning information for additional partitionings is always written to file, regardless of this option.

Parameters

[in]

write_flag

option to save partitioning information: 0: never 1: for graph-based partitioning only 2: always