HP-UX 11i Version 2 June 2006 Release Notes

Table Of Contents
Libraries and Programming
HP MPI
Chapter 10
146
HP MPI
HP MPI Version 2.2 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
The new features of HP MPI 2.2 include the following:
•C++ bindings
•New mpirun command line options:
-hostlist
-hostfile
-lsb_hosts
-lsb_mcpu_hosts
•MPI-2 supported ROMIO
CPU bind support
Signal Propagation
Scalablility
New environment variables:
MPI_RDMA_MSGSIZE
MPI_RDMA_NSRQRECV
MPI_RDMA_NENVELOPE
MPI_RDMA_NFRAGMENT
MPI_RDMA_NONESIDED
MPI_MAX_REMSH
MPI_RANKMEMSIZE
Impact
There are no impacts beyond what is listed previously.
Compatibility
There are no known compatibility issues.
Performance
There are no known performance issues.