==Guide to install OpenMPI with GCC and ICS===

  sudo yum install zlib-devel binutils-devel

Intel:

  ./configure CC=icc CXX=icpc F77=ifort FC=ifort --with-verbs --with-mxm=/opt/mellanox/mxm --prefix=/opt/openmpi-1.x.x

GCC:

  ./configure --with-verbs --with-mxm=/opt/mellanox/mxm --prefix=/opt/openmpi-1.x.x


Make and install

  make -j12
  sudo make install