add use_mpi option to compilation scripts
add use_mpi option to compilation scripts

rdebroiz/medInria-public,aabadie/medInria-public,rdebroiz/medInria-public,aabadie/medInria-public,NicolasSchnitzler/medInria-public,aabadie/medInria-public,NicolasSchnitzler/medInria-public,NicolasSchnitzler/medInria-public,rdebroiz/medInria-public