Hi all, I'm wondering what happens internally in parallel HDF5 when two or more procs have overlapping hyperslab selections, e.g. when each proc has a layer of ghost zones for a stencil calculation and it tries to write all of the data including the ghost zones.
Does HDF5 issue redundant read/write requests for the elements in the overlapping region? Or does it try to shrink the regions until they are disjoint? In the MPI-IO VFD, will the behavior depend on collective vs. independent mode? Thanks Mark _______________________________________________ Hdf-forum is for HDF software users discussion. [email protected] http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
