Re: [OMPI users] open mpi on smp

he section. http://www.open-mpi.org/faq/?category=running#mpirun-scheduling Happy computing, Mark Kosmowski > Message: 1 > Date: Wed, 16 Apr 2008 14:32:58 +0200 > From: " Jozef K??er " > Subject: Re: [OMPI users] open mpi on smp >

Re: [OMPI users] submitted job stops

: 8 > Date: Wed, 09 Apr 2008 22:17:59 +0200 > From: Danesh Daroui > Subject: Re: [OMPI users] submitted job stops > To: Open MPI Users > Message-ID: <47fd2477.1010...@bredband.net> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Mark Kosmowski skrev: &

Re: [OMPI users] submitted job stops

Danesh: Have you tried "mpirun -np 4 --hostfile hosts hostname" to verify that ompi is working? Can you remote access from each node to each other node? If any node has more than 1 network device, are you using the ompi options to specify which device to use? Good luck, Mark > Message: 5 > Da

[OMPI users] some NUMA / affinity questions

I have a successful ompi installation and my software runs across my humble cluster of three dual-Opteron (single core) nodes on OpenSUSE 10.2. I'm planning to upgrade some RAM soon and have been thinking of playing with affinity, since each cpu will have it's own DIMMs after the upgrade. I have

Re: [OMPI users] Begginers question: why does this program

Giovani: Which compiler are you using? Also, you didn't mention this, but does "mpirun hostname" give the expected response? I (also new) had a hang similar to what you are describing due to ompi getting confused as to which of two network interfaces to use - "mpirun hostname" would hang when st

Re: [OMPI users] openMPI on 64 bit SUSE 10.2 OS

Are you pointing to the 64-bit build of HYPRE? For that matter, like Jeff asked, are you sure that each library path that you are defining goes to a 64-bit library path? Good luck, Mark E. Kosmowski peiying@saturn:~/elmer/elmer-5.4.0/fem-5.4.0> export > LD_LIBRARY_PATH=/usr/local/openmpi/lib:/

Re: [OMPI users] odd network behavior

On Jan 15, 2008 7:54 PM, Mark Kosmowski wrote: > Dear Open-MPI Community: > > I have a 3 node cluster, each a dual opteron workstation running > OpenSUSE 10.1 64-bit. The node names are LT, SGT and PFC. When I > start an mpirun job from either SGT or PFC, things work as they ar

[OMPI users] odd network behavior

Dear Open-MPI Community: I have a 3 node cluster, each a dual opteron workstation running OpenSUSE 10.1 64-bit. The node names are LT, SGT and PFC. When I start an mpirun job from either SGT or PFC, things work as they are supposed to. However, if I start the same job from LT, the jobs hangs at

[OMPI users] performance question

guration so that OMPI only uses the gigabit ports (and not the internet connections that some of the machines have). I am already planning on doing some benchmark comparisons to determine the effect of compiler / math library on speed. Thank you, Mark Kosmowski

Re: [OMPI users] first time user - can run mpi job SMP but not over cluster

FWIW, what did MPICH say for the error? I followed the install.pdf that comes with mpich. They have you start up the daemon ring then run mpdtrace. This command tells each daemon instance to report the hostname. I don't remember the exact error message, but it was very clear that NODENAME was

Re: [OMPI users] first time user - can run mpi job SMP but not over cluster

sanity checking, there was a more verbose error message regarding the failed node, so I reinstalled the OS, reconfigured my environment variables for OpenMPI and everything is now working. Thanks for the help and support so far, Mark Kosmowski On 2/7/07, Mark Kosmowski wrote: Dear Open-MPI list

Re: [OMPI users] first time user - can run mpi job SMP but not over cluster

works. Is there a better way of accomplishing this, or is this a matter of there being more than one way to skin the proverbial cat? Thanks, Mark Kosmowski On 2/8/07, Mark Kosmowski wrote: I think I fixed the problem. I at least have mpirun ... hostname working over the cluster. The fir

Re: [OMPI users] first time user - can run mpi job SMP but not over cluster

mpi interface and that the two -mca switches should be used? This could perhaps be most useful to a beginner in either the 'Running MPI Jobs' or 'Troubleshooting' sections of the FAQ. Thanks, Mark Kosmowski

Re: [OMPI users] first time user - can run mpi job SMP but not over cluster

Please find attached a tarball containing the stderror of mpirun ... hostname across my cluster as well as the output from ompi_info. Apologies for not including these earlier. Thank you for any and all assistance, Mark Kosmowski ompi-output.tar.gz Description: GNU Zip compressed data

Re: [OMPI users] first time user - can run mpi job SMP but Re: first time user - can run mpi job SMP but not over cluster

er node will always be having an internet connection in addition to the gigabit cluster network). I hope this is helpful to try to help me troubleshoot my system. Thanks! Mark Kosmowski

[OMPI users] first time user - can run mpi job SMP but not over cluster

at should I be trying to do next to remedy this issue? Any help would be appreciated. Thanks, Mark Kosmowski