HP-UX 11i Version 2 December 2005 Release Notes

Table Of Contents
Libraries and Programming
HP MPI
Chapter 10
175
HP MPI
HP MPI Version 2.1.1 is a high-performance implementation of the Message Passing
Interface (MPI) standard. HP MPI complies fully with the 1.2 standard and provides full
MPI-2 functionality. HP MPI provides an application programming interface and
software libraries to support parallel, message passing applications that are efficient,
portable, and flexible.
Summary of Change
HP MPI has been updated to version 2.1.1 with the following enhancements:
Interconnects supported include:
InfiniBand on Itanium-based systems
—HyperFabric2
—TCP/IP on clusters
Improved gather performance for TCP/IP
Improved alltoall performance
Improved ssh support
Improved socket progression for TCP/IP communication
Impact
There are no impacts other than those listed previously.
Compatibility
There are no known compatibility issues.
Performance
There are no known performance issues.
Documentation
For further information, refer to the following:
Manpages are installed in /opt/mpi/share/man. Manpages for HP MPI utilities are
located in man1*. Manpages for the HP MPI library are located in man3*.
•The HP MPI User's Guide (Ninth Edition) is available from the MPI Web site at
http://www.hp.com/go/mpi Web site.
•The HP MPI V2.0 for HP-UX Release Note is available at
http://docs.hp.com/hpux/pdf/B6060-96014.pdf and from the
http://www.hp.com/go/mpi Web site at
http://h21007.www2.hp.com/dspp/files/unprotected/mpi/hpux/B6060-96014.pdf.