#include <math.h>
#include "superlu_zdefs.h"
Functions | |
main (int argc, char *argv[]) | |
int | cpp_defs () |
-- Distributed SuperLU routine (version 2.0) -- Lawrence Berkeley National Lab, Univ. of California Berkeley. March 15, 2003
int cpp_defs | ( | ) |
main | ( | int | argc, | |
char * | argv[] | |||
) |
Purpose =======
The driver program PZDRIVE3.
This example illustrates how to use PZGSSVX 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 PZGSSVX: 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 PZGSSVX, and reused in the subsequent call.
On an IBM SP, the program may be run by typing: poe pzdrive3 -r <proc rows>=""> -c <proc columns>=""> <input_matrix> -procs