June 2001: A new version of Compaq MPI is available, with additional support for NUMA architectures (such as the HP AlphaServer GS series) and a number of bugfixes. (More details on the Compaq MPI Description page.)
MPI is the emerging standard API for message passing in parallel applications, originally published by the MPI Forum in 1994. Compaq MPI is a high-performance version of MPICH from the Argonne National Laboratory and Mississippi State University, that has been extensively optimized for Compaq's Alpha-based SMP systems and Memory Channel clusters.
Compaq MPI uses a lightweight message-passing scheme to communicate over shared memory and Memory Channel, to dramatically reduce software overhead and provide low latency, high bandwidth communications..
Compaq MPI is optimized to provide low latency, high bandwidth communication between processors anywhere in a Memory Channel cluster. It operates transparently over shared memory and Memory Channel.
Compaq MPI is functionally compatible with MPICH Version 1.1.1.
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