SuperLU Distributed 8.2.1
Distributed memory sparse direct solver
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Driver program for psgssvx_ABglobal example. More...
#include <math.h>
#include "superlu_sdefs.h"
Functions | |
int | main (int argc, char *argv[]) |
int | cpp_defs () |
Driver program for psgssvx_ABglobal example.
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 4.1) -- Lawrence Berkeley National Lab, Univ. of California Berkeley. September 1, 1999 April 5, 2015
int cpp_defs | ( | ) |
int main | ( | int | argc, |
char * | argv[] | ||
) |
Purpose ======= The driver program psdrive3A_ABglobal. This example illustrates how to use psgssvx_ABglobal to solve systems repeatedly with the same sparsity pattern and similar numerical values of matrix A. In this case, the column permutation vector and symbolic factorization are computed only once. The following data structures will be reused in the subsequent call to psgssvx_ABglobal: ScalePermstruct : DiagScale, R, C, perm_r, perm_c LUstruct : etree, Glu_persist, Llu NOTE: The distributed nonzero structures of L and U remain the same, although the numerical values are different. So 'Llu' is set up once in the first call to psgssvx_ABglobal, and reused in the subsequent call. On an IBM SP, the program may be run by typing: poe psdrive3_ABglobal -r <proc rows> -c <proc columns> <input_matrix> -procs