Hi all, One thing we really, really need to get working is allowing multiple MPI implementations to be installed at once and having a tool to switch between them at two levels: system, and per-user [1].
The system level could operate via symlinks where needed and system variables such as LDPATH in /etc/env.d/, and the per-user level would have to operate using purely user-level environment variables. In my opinion, this is the single biggest thing we need right now to make Gentoo better for clustering, particularly as we start adding more MPI implementations such as mpich2 and open-mpi. I've spoken to a few people about making this happen in the past, but they all seem to have disappeared. Would anyone like to take this task on? Thanks, Donnie 1. http://bugs.gentoo.org/show_bug.cgi?id=44132
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