title: Compiling Valgrind with MPI support
body: <p>I'm trying to install <code>Valgrind</code> with full support for <code>MPI</code> under Linux. According to the Valgrind <a href="http://valgrind.org/docs/manual/mc-manual.html#mc-manual.mpiwrap" rel="nofollow">documentation</a>. I should compile with <code>MPI</code> already installed, but according to both the <a href="http://wiki.mpich.org/mpich/index.php/Support_for_Debugging_Memory_Allocation" rel="nofollow">MPICH</a> and <a href="http://www.open-mpi.org/faq/?category=debugging#memchecker_how" rel="nofollow">OpenMPI</a> documentation, I should compile with <code>Valgrind</code> already installed. This is quite confusing, so which should I install first?</p>