HP-UX 11i Version 2 May 2005 Release Notes

Libraries and Programming
HP MPI
Chapter 10
171
HP MPI
HP MPI version 2.1.1 is a high-performance implementation of the Message Passing
Interface 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 version 2.1.1 includes the following changes:
• Support for the following interconnects:
— InfiniBand on Intel Itanium
—HyperFabric2
—TCP/IP on clusters
• Visual MPI for debugging and analysis
• Improved gather performance for TCP/IP
• Improved all-to-all 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 at
http://docs.hp.com/hpux/pdf/B6060-96018.pdf and from the
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.pdfand from the
http://www.hp.com/go/mpi Web site.