new ROMIO features in MPICH-3.2

by Latham, Robert J.

MPICH-3.2 came out a few days before SC 2015. It’s been over a year since MPICH-3.1.4. Here are the ROMIO highlights from the release:

  • more improvements with IBM-PE compatibility
  • more bug fixes for Blue Gene specific optimizations
  • non-blocking collective I/O implemented
  • fixed an odd bug where on some file systems a file created with MPI_MODE_EXCLUSIVE would fail
  • bug fixes in the Panasas PanFS driver
  • better manage some odd generated types the HDF5 folks found