[OMPI users] Using mpiexec to run multiple non-mpi processes

Greetings, I was hoping someone could help me with the following situation. I have a program which has no MPI support that I'd like to run "in parallel" by running a portion of my total task on N CPUs of a PBS/Maui/Open-MPI cluster. (The algorithm is such that there is no real need for MPI, I a

Re: [OMPI users] Bug in orte/mca/pls/rsh/pls_rsh_module.c

Excellent catch -- many thanks! (this code was just updated recently, causing this problem) On Apr 23, 2007, at 8:38 PM, Mostyn Lewis wrote: After 1.3a1r14155 (not sure how much after but certainly currently) you get a SEGV if you use an unknown shell (I use something called ksh93). Error

Re: [OMPI users] How do you switch off paffinity?

On Apr 23, 2007, at 9:22 PM, Mostyn Lewis wrote: I tried this on a humble PC and it works there. I see in the --mca mpi_show_mca_params 1 print out that there is a [bb17:06646] paffinity= entry, so I expect that sets the value entry back to 0? There should be an mpi_paffinity_alone parameter;

Re: [OMPI users] Using mpiexec to run multiple non-mpi processes

Hi John I'm afraid that the straightforward approach you're trying isn't going to work with Open MPI in its current implementation. I had plans for supporting this kind of operation, butnot happening. And as you discovered, you cannot run mpiexec/mpirun in the background, and the "do-not-wait"

Re: [OMPI users] Using mpiexec to run multiple non-mpi processes

John Borchardt wrote: I was hoping someone could help me with the following situation. I have a program which has no MPI support that I'd like to run "in parallel" by running a portion of my total task on N CPUs of a PBS/Maui/Open-MPI cluster. (The algorithm is such that there is no real need f

Re: [OMPI users] Call for Help: CPU topology needed!

Hello, On Mon, 23 Apr 2007, Bert Wesarg wrote: > Hello all, > > Instructions: > > # assume you have mounted the sysfs on /sys > $ cd /sys > $ tar cjf cpu-topology.tar.bz2 > devices/system/{cpu/cpu*/topology/*,node/node*/cpu*} Because of different kernel version, or old versions, not all files are

Re: [OMPI users] Using mpiexec to run multiple non-mpi processes

I think you actually have a few options: 1. If I'm reading the original mail right, I don't think you need mpirun/mpiexec at all. When you submit a scripted job to PBS, the script runs on the "mother superior" node -- the first node that was allocated to you. In this, case it's your only

[OMPI users] openMPI over uDAPL doesn't work

Hello, I finally managed to run open MPI with uDAPl but all MPI programs hang up, when they use MPI_Recv. If I use TCP or native InfiniBand instead, it works. Maybe you have an idea where the problem could be. Thanks Andreas config.log.gz Description: GNU Zip compressed data ompi_info

Re: [OMPI users] openMPI over uDAPL doesn't work

Andreas, I am going to guess at a minimum the interfaces are up and you can ping them. On Solaris there is an additional step required and that is initializing the dat registry. If "/usr/sbin/datadm -v" does not show some driver output then you would need to run "/usr/sbin/datadm -a /usr/sha

Re: [OMPI users] How do you switch off paffinity?

Well, I'm sorry to have caused even a smidgen of grief here. I moved aside the *paffinity_linux* module and la and it still bound. I was using InfiniPath HCAs and beta software and eventually found (sigh) a variable to stop the affine - IPATH_NO_CPUAFFINITY. So, a export IPATH_NO_CPUAFFINITY=1 $

Re: [OMPI users] How do you switch off paffinity?

No problem! Glad we could help, and many thanks for tracking down some of our bugs. On Apr 24, 2007, at 5:28 PM, Mostyn Lewis wrote: Well, I'm sorry to have caused even a smidgen of grief here. I moved aside the *paffinity_linux* module and la and it still bound. I was using InfiniPath HCAs