al_decomp_.c File Reference

Miscellaneous of functions act to find the processors distribution. More...

#include "al_hidden.h"

Functions
int	AL_Decomp_2d_ (int nproc, int npdim, int *ldims, int *gdims)
int	AL_Decomp_3d_ (int nproc, int npdim, int *ldims, int *gdims)
int	AL_Auto_Decomp_ (int nproc, int npdim, int *ldims, int *gdims)

Detailed Description

Find a "maximally cubic" processors distribution in 1D, 2D and 3D.

Author

A. Malagoli (University of Chicago)

Date

Jul 17, 1999

Function Documentation

int AL_Auto_Decomp_	(	int	nproc,
		int	npdim,
		int *	ldims,
		int *	gdims
	)

Find a "maximally cubic" processors distribution.

Parameters

[in]	nproc	number of processors
[in]	npdim	number of parallel dimensions
[out]	ldims	processor decomposition along directions
[in]	gdims	global array sizes

int AL_Decomp_2d_	(	int	nproc,
		int	npdim,
		int *	ldims,
		int *	gdims
	)

Find a "maximally cubic" processors distribution in 2D.

Parameters

[in]	nproc	number of processors
[in]	npdim	number of parallel dimensions
[out]	ldims	processor decomposition along directions
[in]	gdims	global array sizes

int AL_Decomp_3d_	(	int	nproc,
		int	npdim,
		int *	ldims,
		int *	gdims
	)

Find a "maximally cubic" processors distribution in 3D.

Parameters

[in]	nproc	number of processors
[in]	npdim	number of parallel dimensions
[out]	ldims	processor decomposition along directions
[in]	gdims	global array sizes