1Warning: PetscViewerHDF5SetCollective(viewer,PETSC_TRUE) is ignored for HDF5 versions prior to 1.10.3 or if built without MPI support 2PetscViewer Object: 1 MPI process 3 type: hdf5 4 Viewer format = HDF5_XDMF 5 Filename: my.hdf5 6 Vectors with blocksize 1 saved as 2D datasets: TRUE 7 Enforce single precision storage: FALSE 8 MPI-IO transfer mode: independent 9