Actual source code: ex119.c

  1: static char help[] = "Tests binary MatView() for MPIDENSE matrices \n\n";

  3: #include <petscmat.h>

  5: int main(int argc,char **args)
  6: {
  7:   Mat            A;
  8:   PetscViewer    viewer;
  9:   char           inputfile[256],outputfile[256];
 10:   PetscBool      flg;

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