LPP » HPC

h1. BuildingOMPI

To build openMPI with intel compiler:

<pre><code class="bash">

export CC=icc

export CXX=icpc

export F77=ifort

export F90=ifort

export FC=ifort

export LIBS="-lirc"

./configure

make -j 64  # or the number of cores you have

</code></pre>

Then to install it, you must do it as super user:

<pre><code class="bash">

su root   #sudo -s on ubuntu

make install

exit  #leave root session

</code></pre>

Once installed you need to tell the linker the library path, to do so:

<pre><code class="bash">

su root  #sudo -s on ubuntu

echo "/usr/local/lib" > /etc/ld.so.conf.d/iopenmpi.conf

ldconfig  #Tell the linker to update cache

exit  #leave root session

</code></pre>