2: /* Program usage:  mpiexec -n <procs> ex2 [-help] [all PETSc options] */

  4: static char help[] = "Appends to an ASCII file.\n\n";

  6: /*T
  7:    Concepts: Viewer, append
  8: T*/

 10: #include <petscviewer.h>

 14: int main(int argc,char **args)
 15: {
 16:   PetscViewer    viewer;
 17:   PetscInt       i;

 20:   PetscInitialize(&argc,&args,(char *)0,help);
 21:   PetscViewerCreate(PETSC_COMM_WORLD, &viewer);
 22:   PetscViewerSetType(viewer, PETSCVIEWERASCII);
 23:   PetscViewerFileSetMode(viewer, FILE_MODE_APPEND);
 24:   PetscViewerFileSetName(viewer, "test.txt");
 25:   for(i = 0; i < 10; ++i) {
 26:     PetscViewerASCIIPrintf(viewer, "test line %d\n", i);
 27:   }
 28:   PetscFinalize();
 29:   return 0;
 30: }