This is for reference and suggestions as this took me several hours to track down and the previous discussion on "mpivars.sh" failed to cover this point (nothing in the FAQ):
I successfully build and installed OpenMPI 1.6.3 using the following on Debian Linux: ./configure --prefix=/opt/openmpi/intel131 --disable-ipv6 --with-mpi-f90-size=medium --with-f90-max-array-dim=4 --disable-vt F77=/opt/intel/composer_xe_2013.1.117/bin/intel64/ifort FC=/opt/ intel/composer_xe_2013.1.117/bin/intel64/ifort CXXFLAGS=-m64 CFLAGS=-m64 CC=gcc CXX=g++ (disable-vt was required because of an error finding -lz which I gave up on). My .tcshrc file HAD the following: set path = (/opt/openmpi/intel131/bin $path) setenv LD_LIBRARY_PATH /opt/openmpi/intel131/lib:$LD_LIBRARY_PATH setenv MANPATH /opt/openmpi/intel131/share/man:$MANPATH alias mpirun "mpirun --prefix /opt/openmpi/intel131 " source /opt/intel/composer_xe_2013.1.117/bin/compilervars.csh intel64 For years I have used these procedures on Debian Linux and OS X with earlier versions of OpenMPI and Intel Fortran. However, at some point Intel Fortran started including "mpirt", including: /opt/intel/composer_xe_2013.1.117/mpirt/bin/intel64/mpirun So even through I have the alias set for mpirun, I got the following error: > mpirun -V .: 131: Can't open /opt/intel/composer_xe_2013.1.117/mpirt/bin/intel64/mpivars.sh Part of the confusion is that OpenMPI source does include a reference to "mpivars" in "contrib/dist/linux/openmpi.spec" The solution only occurred as I was writing this up, source intel setup first: source /opt/intel/composer_xe_2013.1.117/bin/compilervars.csh intel64 set path = (/opt/openmpi/intel131/bin $path) setenv LD_LIBRARY_PATH /opt/openmpi/intel131/lib:$LD_LIBRARY_PATH setenv MANPATH /opt/openmpi/intel131/share/man:$MANPATH alias mpirun "mpirun --prefix /opt/openmpi/intel131 " Now I finally get: > mpirun -V mpirun (Open MPI) 1.6.3 The mpi runtime should be in the redistributable for their MPI compiler not in the base compiler. The question is how much of /opt/intel/composer_xe_2013.1.117/mpirt can I eliminate safely and should I ( multi-user machine were each user has their own Intel license, so I don't wish to trouble shoot this in the future ) ?
