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 PetscErrorCode ierr; 10 PetscViewerFormat format; 11 12 ierr = PetscInitialize(&argc,&args,(char*)0,help);if (ierr) return ierr; 13 ierr = PetscOptionsGetViewer(PETSC_COMM_WORLD,NULL,NULL,"-myviewer",&viewer,&format,NULL);CHKERRQ(ierr); 14 ierr = PetscViewerPushFormat(viewer,format);CHKERRQ(ierr); 15 ierr = PetscViewerView(viewer,PETSC_VIEWER_STDOUT_WORLD);CHKERRQ(ierr); 16 ierr = PetscViewerPopFormat(viewer);CHKERRQ(ierr); 17 ierr = PetscViewerDestroy(&viewer);CHKERRQ(ierr); 18 ierr = PetscFinalize(); 19 return ierr; 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