Actual source code: ex119.c

petsc-3.7.3 2016-08-01
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  1: static char help[] = "Tests binary MatView() for MPIDENSE matrices \n\n";

  3: #include <petscmat.h>


  8: int main(int argc,char **args)
  9: {
 11:   Mat            A;
 12:   PetscViewer    viewer;
 13:   char           inputfile[256],outputfile[256];
 14:   PetscBool      flg;

 16:   PetscInitialize(&argc,&args,(char*)0,help);
 17:   PetscOptionsGetString(NULL,NULL,"-inputfile",inputfile,256,&flg);
 18:   PetscOptionsGetString(NULL,NULL,"-outputfile",outputfile,256,&flg);
 19:   PetscViewerBinaryOpen(PETSC_COMM_WORLD,inputfile,FILE_MODE_READ,&viewer);
 20:   MatCreate(PETSC_COMM_WORLD,&A);
 21:   MatSetType(A,MATDENSE);
 22:   MatLoad(A,viewer);
 23:   PetscViewerDestroy(&viewer);
 24:   PetscViewerBinaryOpen(PETSC_COMM_WORLD,outputfile,FILE_MODE_WRITE,&viewer);
 25:   MatView(A,viewer);
 26:   PetscViewerDestroy(&viewer);
 27:   PetscFinalize();
 28:   return(0);
 29: }