ddistribute.c File Reference

Distribute the matrix onto the 2D process mesh. More...

#include "superlu_ddefs.h"

Include dependency graph for ddistribute.c:

Functions
float	ddistribute (superlu_dist_options_t *options, int_t n, SuperMatrix *A, Glu_freeable_t *Glu_freeable, dLUstruct_t *LUstruct, gridinfo_t *grid)

Detailed Description

Distribute the matrix onto the 2D process mesh.

Copyright (c) 2003, The Regents of the University of California, through Lawrence Berkeley National Laboratory (subject to receipt of any required approvals from U.S. Dept. of Energy)

All rights reserved.

The source code is distributed under BSD license, see the file License.txt at the top-level directory.

-- Distributed SuperLU routine (version 2.3) --
Lawrence Berkeley National Lab, Univ. of California Berkeley.
October 15, 2008

January 9, 2023

Function Documentation

ddistribute()

float ddistribute	(	superlu_dist_options_t *	options,
		int_t	n,
		SuperMatrix *	A,
		Glu_freeable_t *	Glu_freeable,
		dLUstruct_t *	LUstruct,
		gridinfo_t *	grid
	)

Purpose
=======
  Distribute the matrix onto the 2D process mesh.

Arguments
=========

options (input) superlu_dist_options_t *
       options->Fact specifies whether or not the L and U structures will be re-used.
       = SamePattern_SameRowPerm: L and U structures are input, and
                                  unchanged on exit.
       = DOFACT or SamePattern: L and U structures are computed and output.

n      (input) int
       Dimension of the matrix.

A      (input) SuperMatrix*
   The original matrix A, permuted by columns, of dimension
       (A->nrow, A->ncol). The type of A can be:
       Stype = SLU_NCP; Dtype = SLU_D; Mtype = SLU_GE.

LUstruct (input) dLUstruct_t*
       Data structures for L and U factors.

grid   (input) gridinfo_t*
       The 2D process mesh.

Return value
============
  > 0, working storage (in bytes) required to perform redistribution.
       (excluding LU factor size)

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