Re: [OMPI users] For Open MPI + BPROC users

2006-11-30 Thread Marcus G. Daniels
Galen Shipman wrote: We have found a potential issue with BPROC that may effect Open MPI. Open MPI by default uses PTYs for I/O forwarding, if PTYs aren't setup on the compute nodes, Open MPI will revert to using pipes. Recently (today) we found a potential issue with PTYs and BPROC. A simp

Re: [OMPI users] x11 forwarding

2006-11-30 Thread Dave Grote
Title: Re: [OMPI users] x11 forwarding I don't think that that is the problem. As far as I can tell, the DISPLAY environment variable is being set properly on the slave (it will sometimes have a different value than in the shell where mpirun was executed).   Dave Ralph H Castain wrote:

Re: [OMPI users] x11 forwarding

2006-11-30 Thread Ralph H Castain
Actually, I believe at least some of this may be a bug on our part. We currently pickup the local environment and forward it on to the remote nodes as the environment for use by the backend processes. I have seen quite a few environment variables in that list, including DISPLAY, which would create

Re: [OMPI users] x11 forwarding

2006-11-30 Thread Dave Grote
I'm using caos linux (developed at LBL), which has the wrapper wwmpirun around mpirun, so my command is something like wwmpirun -np 8 -- -x PYTHONPATH --mca pls_rsh_agent '"ssh -X"' /usr/local/bin/pyMPI This is essentially the same as mpirun -np 8 -x PYTHONPATH --mca pls_rsh_agent '"ssh -X"' /

Re: [OMPI users] dual Gigabit ethernet support

2006-11-30 Thread Galen Shipman
Looking VERY briefly at the GAMMA API here: http://www.disi.unige.it/project/gamma/gamma_api.html It looks like one could create a GAMMA BTL with a minimal amount of trouble. I would encourage your group to do this! There is quite a bit of information regarding the BTL interface, and for GA

Re: [OMPI users] x11 forwarding

2006-11-30 Thread Galen Shipman
what does your command line look like? - Galen On Nov 29, 2006, at 7:53 PM, Dave Grote wrote: I cannot get X11 forwarding to work using mpirun. I've tried all of the standard methods, such as setting pls_rsh_agent = ssh -X, using xhost, and a few other things, but nothing works in general.