Dear all, A new version of MPICH2, 1.0.5, has been released for both Unix and Windows platforms. You can download it from http://www.mcs.anl.gov/mpi/mpich2. We recommend you upgrade to this version if you are running an older version of MPICH2 or MPICH-1. New features in this release include: - A new ch3 channel for SCTP, implemented by Brad Penoff and Mike Tsai (Univ. of British Columbia) - Various bugs related to dynamic processes have been fixed - Performance-related fixes have been added to derived datatypes and collective communication - Improvements to the Nemesis channel - Fixes to thread safety for the ch3:sock channel - Many other bug fixes and code cleanup Details are in the CHANGES file in the distribution. For those interested in details of the code changes, the CVS log summaries are available at http://www.mcs.anl.gov/mpi/mpich2/ mpich2_1_0_5changes.htm Regards, The MPICH2 Team