Q-Logic IB6054601-00 D 用户手册

IB6054601-00 D

3-1

Using InfiniPath MPI 

This chapter provides information on using InfiniPath MPI. Examples are provided 
for compiling and running MPI programs. 

QLogic’s implementation of the MPI standard is derived from the MPICH reference 
implementation Version 1.2.6. The InfiniPath MPI libraries have been highly tuned 
for the InfiniPath Interconnect, and will not run over other interconnects. 

InfiniPath MPI is an implementation of the original MPI 1.2 standard. The MPI-2 
standard provides several enhancements of the original standard. Of the MPI-2 
features, InfiniPath MPI includes only the MPI-IO features implemented in ROMIO 
version 1.2.6 and the generalized MPI_Alltoallw communication exchange.

In this Version 2.0release, the InfiniPath MPI implementation supports hybrid 
MPI/OpenMP, and other multi-threaded programs, as long as only one thread uses 
MPI. For more information, see 

As of this release, other MPI implementations can now be run over InfiniPath. The 
currently supported implementations are HP-MPI, OpenMPI and Scali. For more 
information see 

.

In this section you will learn how to compile and run some simple example programs 
that are included in the InfiniPath software product. Compiling and running these 
examples lets you verify that InfiniPath MPI and its components have been properly 
installed on your cluster. See 

 if you have problems compiling or 

running these examples.