1 2 static char help[] = "Demonstrates PetscOptionsGetViewer().\n\n"; 3 4 #include <petscviewer.h> 5 6 int main(int argc, char **args) 7 { 8 PetscViewer viewer; 9 PetscViewerFormat format; 10 11 PetscFunctionBeginUser; 12 PetscCall(PetscInitialize(&argc, &args, (char *)0, help)); 13 PetscCall(PetscOptionsGetViewer(PETSC_COMM_WORLD, NULL, NULL, "-myviewer", &viewer, &format, NULL)); 14 PetscCall(PetscViewerPushFormat(viewer, format)); 15 PetscCall(PetscViewerView(viewer, PETSC_VIEWER_STDOUT_WORLD)); 16 PetscCall(PetscViewerPopFormat(viewer)); 17 PetscCall(PetscViewerDestroy(&viewer)); 18 PetscCall(PetscFinalize()); 19 return 0; 20 } 21 22 /*TEST 23 24 test: 25 args: -myviewer ascii 26 27 testset: 28 args: -myviewer hdf5:my.hdf5:hdf5_xdmf 29 requires: hdf5 30 test: 31 suffix: 2a 32 args: -viewer_hdf5_base_dimension2 false -viewer_hdf5_sp_output true -viewer_hdf5_collective false 33 test: 34 suffix: 2b 35 args: -viewer_hdf5_base_dimension2 true -viewer_hdf5_sp_output false -viewer_hdf5_collective true 36 37 TEST*/ 38