> -----Original Message----- > From: users-boun...@open-mpi.org > [mailto:users-boun...@open-mpi.org] On Behalf Of Ralph Castain > Sent: Tuesday, October 21, 2008 10:53 AM > To: Open MPI Users > Subject: Re: [OMPI users] OpenMPI runtime-specific > environment variable? > > > On Oct 21, 2008, at 10:37 AM, Adams, Brian M wrote: > > > think it will help here. While MPICH implementations > typically left > > args like -p4pg -p4amslave on the command line, I don't see that > > coming from OpenMPI-launched jobs. > > Really? That doesn't sound right - we don't touch the > arguments to your application. We test that pretty regularly > and I have always seen the args come through. > > Can you provide an example of where it isn't?
Sorry Ralph, I caused some confusion here. You are correct that OMPI does nothing to muck with any arguments passed to the user application -- they come through as expected. I meant that when launching a binary with MPICH mpirun, it would _append_ to the command line arguments things including -p4pg and -p4wd, possibly -p4amslave, which we could detect at run-time in the app context to determine that the app had indeed been launched with mpirun. Brian
