Re: [OMPI users] openMPI shared with NFS, but says different version

Thank you, Cristobal. That is good news. Gus Correa Cristobal Navarro wrote: i have good news. after updating to a newer kernel on ubuntu server nodes, sm is not a problem anymore for the nehalem CPUs!!! my older kernel, was Linux 2.6.32-22-server #36-Ubuntu SMP Thu Jun 3 20:38:33 UTC 2010

Re: [OMPI users] openMPI shared with NFS, but says different version

i have good news. after updating to a newer kernel on ubuntu server nodes, sm is not a problem anymore for the nehalem CPUs!!! my older kernel, was Linux 2.6.32-22-server #36-Ubuntu SMP Thu Jun 3 20:38:33 UTC 2010 x86_64 GNU/Linux and i upgraded to Linux agua 2.6.32-24-server #39-Ubuntu SMP Wed

Re: [OMPI users] openMPI shared with NFS, but says different version

Cristobal Navarro wrote: Gus my kernel for all nodes is this one: Linux 2.6.32-22-server #36-Ubuntu SMP Thu Jun 3 20:38:33 UTC 2010 x86_64 GNU/Linux Kernel is not my league. However, it would be great if somebody clarified for good these issues with Nehalem/Westmere, HT, shared memory and

Re: [OMPI users] openMPI shared with NFS, but says different version

Gus my kernel for all nodes is this one: Linux 2.6.32-22-server #36-Ubuntu SMP Thu Jun 3 20:38:33 UTC 2010 x86_64 GNU/Linux at least for the moment i will use this configuration, at least for deveplopment/testing of the parallel programs. lag is minimum :) whenever i get another kernel update,

Re: [OMPI users] openMPI shared with NFS, but says different version

Hi Cristobal Please, read my answer (way down the message) below. Cristobal Navarro wrote: On Wed, Jul 28, 2010 at 3:28 PM, Gus Correa > wrote: Hi Cristobal Cristobal Navarro wrote: On Wed, Jul 28, 2010 at 11:09

Re: [OMPI users] openMPI shared with NFS, but says different version

On Wed, Jul 28, 2010 at 3:28 PM, Gus Correa wrote: > Hi Cristobal > > Cristobal Navarro wrote: > >> >> >> On Wed, Jul 28, 2010 at 11:09 AM, Gus Correa g...@ldeo.columbia.edu>> wrote: >> >>Hi Cristobal >> >>In case you are not using full

Re: [OMPI users] openMPI shared with NFS, but says different version

Hi Cristobal Cristobal Navarro wrote: On Wed, Jul 28, 2010 at 11:09 AM, Gus Correa > wrote: Hi Cristobal In case you are not using full path name for mpiexec/mpirun, what does "which mpirun" say? --> $which mpirun

Re: [OMPI users] openMPI shared with NFS, but says different version

to clear things, i still can do a hello world on all 16 threads, but a few more repetitions of the example and it kernel crashes :( fcluster@agua:~$ mpirun --hostfile localhostfile -np 16 testMPI/hola Process 0 on agua out of 16 Process 2 on agua out of 16 Process 14 on agua out of 16 Process 8

Re: [OMPI users] openMPI shared with NFS, but says different version

On Wed, Jul 28, 2010 at 11:09 AM, Gus Correa wrote: > Hi Cristobal > > In case you are not using full path name for mpiexec/mpirun, > what does "which mpirun" say? > --> $which mpirun /opt/openmpi-1.4.2 > > Often times this is a source of confusion, old versions

Re: [OMPI users] openMPI shared with NFS, but says different version

yes, somehow after the second install, the installlation is consistent. im only running into an issue, might be mpi im not sure. these nodes, each one have 8 phisical procesors (2xIntel Xeon quad core), and 16 virtual ones, btw i have ubuntu server 64bit 10.04 instaled on these nodes. the

Re: [OMPI users] openMPI shared with NFS, but says different version

This issue is usually caused by installing one version of Open MPI over an older version: http://www.open-mpi.org/faq/?category=building#install-overwrite On Jul 27, 2010, at 10:35 PM, Cristobal Navarro wrote: > > On Tue, Jul 27, 2010 at 7:29 PM, Gus Correa

Re: [OMPI users] openMPI shared with NFS, but says different version

On Tue, Jul 27, 2010 at 7:29 PM, Gus Correa wrote: > Hi Cristobal > > Does it run only on the head node alone? > (Fuego? Agua? Acatenango?) > Try to put only the head node on the hostfile and execute with mpiexec. > --> i will try only with the head node, and post results

Re: [OMPI users] openMPI shared with NFS, but says different version

i compiled with absolute path in case: fcluster@agua:~$ /opt/openmpi-1.4.2/bin/mpicc testMPI/hello.c -o testMPI/hola fcluster@agua:~$ mpirun --hostfile myhostfile -np 5 testMPI/hola [agua:03547] mca: base: component_find: unable to open /opt/openmpi-1.4.2/lib/openmpi/mca_btl_ofud: perhaps a

Re: [OMPI users] openMPI shared with NFS, but says different version

Thanks Gus, but i already had the paths fcluster@agua:~$ echo $PATH /opt/openmpi-1.4.2/bin:/opt/cfc/sge/bin/lx24-amd64:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games fcluster@agua:~$ echo $LD_LIBRARY_PATH /opt/openmpi-1.4.2/lib: fcluster@agua:~$ even weird, errors come

Re: [OMPI users] openMPI shared with NFS, but says different version

Hi Cristobal Try using the --prefix option of mpiexec. "man mpiexec" is your friend! Alternatively, append the OpenMPI directories to your PATH *and* LD_LIBRARY_PATH on your .bashrc/.csrhc file See this FAQ: http://www.open-mpi.org/faq/?category=running#adding-ompi-to-path I hope it helps, Gus