Newsgroups: comp.parallel.mpi From: James Cownie Subject: Re: env-variables & mpich Organization: Dolphin Toolworks Date: Fri, 05 Jun 1998 10:36:36 +0100 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <3577BC24.5A27@dolphinics.com> Manfred Krafczyk wrote: > > Hi all, > I wonder if there is a way that an executable started via > mpirun -np n executablename > can read the same environment variables that were present > in the shell were mpirun was started. > Thanks for any hints > > Manfred Krafczyk MPICH (ch_p4) generally uses rsh to start the remote processes. rsh doesn't pass the environment over. Assuming that you do have a process on the machine you started from which can see the envirables you want, then the best thing to do is read them there and then use MPI_Broadcast to pass them to everyone else. (If you really wanted it wouldn't be that hard to read all the envirables and pas them all over, of course, but I expect that you actually know what you're looking for, so need only pass that). -- Jim James Cownie Dolphin Interconnect Solutions +44 117 9071438 http://www.dolphinics.com/toolworks