MPICH2-1.1b1 released (Mar 18th, 2009)

A new version of MPICH2, 1.1b1, has been released. This is a pre-release in the MPICH2-1.1 series, including support for the Myrinet MX network module, improved shared-memory collectives as well as regular collective communication, and support for a new and improved Lustre MPI-IO driver.