Wednesday, November 3, 2010

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 \ 

# 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)?

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