EXAMPLE/pzdrive3_ABglobal.c File Reference

Driver program for pzgssvx_ABglobal example. More...

#include <math.h>
#include "superlu_zdefs.h"

Functions/Subroutines

int main (int argc, char *argv[])
int cpp_defs ()


Detailed Description

 -- Distributed SuperLU routine (version 1.0) --
 Lawrence Berkeley National Lab, Univ. of California Berkeley.
 September 1, 1999
 

Function Documentation

int cpp_defs (  ) 

int main ( int  argc,
char *  argv[] 
)

 Purpose
 =======

 The driver program pzdrive3A_ABglobal.

 This example illustrates how to use pzgssvx_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 pzgssvx_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 pzgssvx_ABglobal, and reused in the subsequent call.

 On an IBM SP, the program may be run by typing:
    poe pzdrive3_ABglobal -r <proc rows>=""> -c <proc columns>=""> <input_matrix>  -procs 

 


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