Compiling Infiniband or OpenIB with OpenMPI and Intel Compilers on CentOS

Building on the Blog Entry "Useful Information to Compile Infinifband with OpenMPI", here is a more detailed writeup

I'm assuming you have compiled the Intel Compilers and Unzip the OpenMPI Package. Some of these information can be found on simple Ethernet-based Building OpenMPI with Intel Compiler (Ver 2) .
Don't configure and make yet for the OpenMPI Package.


Firstly to compile with OpenIB support,

#./configure --prefix=/usr/mpi/intel/ \ 
CC=icc CXX=icpc F77=ifort FC=ifort \
--with-openib \ 
--with-openib-libdir=/usr/lib64/

# make all install 

To test whether you have compiled and installed correctly, you can run the "ompi_info" command and look for components for your networks.

# ompi_info | grep openib

You should get something like this depending on your component

MCA btl: openib (MCA v2.0, API v2.0, Component v1.4.1)

You are in good shape.

For more information, see OpenMPI, see

1. 26. How do I build Open MPI with support for Open IB (Infiniband), mVAPI (Infiniband), GM (Myrinet), and/or MX (Myrinet)?