Tuesday, July 16, 2013

Compiling OpenMPI with CUDA and Intel Compilers

If you are intending to compile OpenMPI with CUDA Support, do note that you have to download the feature version of OpenMPI. The version I used for compiling OpenMPI with CUDA is version 1.7.2. The current stable version of OpenMPI 1.6.5 does not have CUDA-Support

1. Download and unpack OpenMPI 1.7.2 (features)
# wget http://www.open-mpi.org/software/ompi/v1.7/downloads/openmpi-1.7.2.tar.gz
# tar -zxvf openmpi-1.7.2.tar.gz
# cd openmpi-1.7.2

2. Configure the OpenMPI with CUDA Support
# ./configure --prefix=/usr/local/openmpi-1.7.2-intel-cuda CC=icc CXX=icpc 
F77=ifort FC=ifort --with-cuda=/opt/cuda --with-cuda-libdir=/usr/lib64
# make -j 8
# make install

  1. 34. How do I build Open MPI with support for sending CUDA device memory?

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