HP-UX 11i December 2004 Release Notes

Table Of Contents
HP-UX 11i Version 1 Operating Environment Applications
HP-UX 11i v1 Technical Computing Operating Environment (TCOE)
Chapter 6
163
HP Message-Passing Interface (MPI)
HP Message-Passing Interface (MPI) is a high-performance implementation of the
Message-Passing Interface Standard. HP MPI complies fully with the 1.2 standard. As of
September 2003, HP MPI also complies fully with the 2.0 standard, with restrictions. HP
MPI provides an application programming interface and software libraries to support
parallel, message-passing applications that are efficient, portable, and flexible.
updated for
December 2003
HP MPI Version 2.0 includes the following new features:
MPI-2 Standard functionality including:
—Dynamic processes
Extended collectives
One-sided communications
Thread safety
MPI_BOTTOM
language interoperability
Updated ROMIO
Interconnects supported include:
—HyperFabric
—TCP/IP on clusters
Shared memory for intranode communication
Visual MPI for debugging and analysis
Support for truncated messages
Limited H/A mode
MPI versioning
mpirun global environment variable settings via command line
•New mpirun command line options
updated for June
2003
HP MPI has been updated to version 1.8.3 to enhance performance tuning. No new
functionality has been added since version 1.8.1.
NOTE For documentation about HP MPI in previous releases of HP-UX 11i v1, see HP-UX 11i
December 2002 Release Notes, available at
http://docs.hp.com/hpux/os/11i/index.html.
Documentation
The HP MPI User’s Guide, Eighth Edition and the HP MPI Release Notes are available
at the following Web sites:
www.hp.com/go/mpi
http://docs.hp.com