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