Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On Tue, Nov 16, 2010 at 12:23 PM, Terry Dontje wrote: > On 11/16/2010 01:31 PM, Reuti wrote: > > Hi Ralph, > > Am 16.11.2010 um 15:40 schrieb Ralph Castain: > > > 2. have SGE bind procs it launches to -all- of those cores. I believe SGE > does this automatically to

Re: [OMPI users] mpi-io, fortran, going crazy... (ADENDA)

Ricardo Reis wrote: and sorry to be such a nuisance... but any motive for an MPI-IO "wall" between the 2.0 and 2.1 Gb? Salve Ricardo Reis! Is this "wall" perhaps the 2GB Linux file size limit on 32-bit systems? Gus (1 mpi process) best, Ricardo Reis 'Non Serviam' PhD candidate

Re: [OMPI users] mpi-io, fortran, going crazy... (ADENDA)

and sorry to be such a nuisance... but any motive for an MPI-IO "wall" between the 2.0 and 2.1 Gb? (1 mpi process) best, Ricardo Reis 'Non Serviam' PhD candidate @ Lasef Computational Fluid Dynamics, High Performance Computing, Turbulence http://www.lasef.ist.utl.pt Cultural

Re: [OMPI users] mpi-io, fortran, going crazy...

On my last email... I forgot to add It's a 12Gb machine and the file should be around 2.5Gb I'm using mpirun -np 1 And it writes without problem if I try a file of 250Mb, for instance so it seems also to be a size related problem I'm using the 'native' type for writing... ideas?

[OMPI users] mpi-io, fortran, going crazy...

Hi all I have been banging my head on a wall for three days trying to make a simple fortran mpi-io program work. I'm using gfortan 4.4, openmpi 1.4.1 (it's a debian box) I have other codes that work with MPI-IO without any problem but for some reason I can't grasp this one... doesn't

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On 11/16/2010 01:31 PM, Reuti wrote: Hi Ralph, Am 16.11.2010 um 15:40 schrieb Ralph Castain: 2. have SGE bind procs it launches to -all- of those cores. I believe SGE does this automatically to constrain the procs to running on only those cores. This is another "bug/feature" in SGE: it's a

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

Hi Ralph, Am 16.11.2010 um 15:40 schrieb Ralph Castain: > > 2. have SGE bind procs it launches to -all- of those cores. I believe SGE > > does this automatically to constrain the procs to running on only those > > cores. > > This is another "bug/feature" in SGE: it's a matter of discussion,

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On 16 Nov 2010, at 17:25, Terry Dontje wrote: >>> >> Sure. Here's the stderr of a job submitted to my cluster with 'qsub -pe >> mpi 8 -binding linear:2 myScript.com' where myScript.com runs 'mpirun -mca >> ras_gridengine_verbose 100 --report-bindings ./unterm': >> >> [exec4:17384] System

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On 11/16/2010 12:13 PM, Chris Jewell wrote: On 16 Nov 2010, at 14:26, Terry Dontje wrote: In the original case of 7 nodes and processes if we do -binding pe linear:2, and add the -bind-to-core to mpirun I'd actually expect 6 of the nodes processes bind to one core and the 7th node with 2

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On 11/16/2010 12:13 PM, Chris Jewell wrote: On 16 Nov 2010, at 14:26, Terry Dontje wrote: In the original case of 7 nodes and processes if we do -binding pe linear:2, and add the -bind-to-core to mpirun I'd actually expect 6 of the nodes processes bind to one core and the 7th node with 2

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On 16 Nov 2010, at 14:26, Terry Dontje wrote: > > In the original case of 7 nodes and processes if we do -binding pe linear:2, > and add the -bind-to-core to mpirun I'd actually expect 6 of the nodes > processes bind to one core and the 7th node with 2 processes to have each of > those

[OMPI users] architecture questions

hello,I currently have a serial application with a GUI that runs some calculations.My next step is to use OpenMPI with the help of the Boost.MPI wrapper library in C++ to parallelize those calculations.There is a set of static data objects created once at startup or loaded from files.1. In

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On 11/16/2010 10:59 AM, Reuti wrote: Am 16.11.2010 um 15:26 schrieb Terry Dontje: 1. allocate a specified number of cores on each node to your job this is currently the bug in the "slot<=> core" relation in SGE, which has to be removed, updated or clarified. For now slot and core count

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

Am 16.11.2010 um 15:26 schrieb Terry Dontje: >>> >>> 1. allocate a specified number of cores on each node to your job >>> >> this is currently the bug in the "slot <=> core" relation in SGE, which has >> to be removed, updated or clarified. For now slot and core count are out of >> sync

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

Hi Reuti > > 2. have SGE bind procs it launches to -all- of those cores. I believe SGE > does this automatically to constrain the procs to running on only those > cores. > > This is another "bug/feature" in SGE: it's a matter of discussion, whether > the shepherd should get exactly one core (in

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On 11/16/2010 09:08 AM, Reuti wrote: Hi, Am 16.11.2010 um 14:07 schrieb Ralph Castain: Perhaps I'm missing it, but it seems to me that the real problem lies in the interaction between SGE and OMPI during OMPI's two-phase launch. The verbose output shows that SGE dutifully allocated the

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

Hi, Am 16.11.2010 um 14:07 schrieb Ralph Castain: > Perhaps I'm missing it, but it seems to me that the real problem lies in the > interaction between SGE and OMPI during OMPI's two-phase launch. The verbose > output shows that SGE dutifully allocated the requested number of cores on > each

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

Perhaps I'm missing it, but it seems to me that the real problem lies in the interaction between SGE and OMPI during OMPI's two-phase launch. The verbose output shows that SGE dutifully allocated the requested number of cores on each node. However, OMPI launches only one process on each node (the

Re: [OMPI users] source code for presentation/papers

We hosted the paper as a courtesy to the author; they aren't part of the Open MPI core community. You should probably contact the author directly to obtain the work; it was not submitted upstream to us. On Nov 13, 2010, at 4:39 AM, Vasiliy G Tolstov wrote: > Hello. I read very good paper

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

Am 16.11.2010 um 10:26 schrieb Chris Jewell: > Hi all, > >> On 11/15/2010 02:11 PM, Reuti wrote: >>> Just to give my understanding of the problem: >> Sorry, I am still trying to grok all your email as what the problem you >> are trying to solve. So is the issue is trying to have

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

On 11/16/2010 04:26 AM, Chris Jewell wrote: Hi all, On 11/15/2010 02:11 PM, Reuti wrote: Just to give my understanding of the problem: Sorry, I am still trying to grok all your email as what the problem you are trying to solve. So is the issue is trying to have two jobs having processes on

Re: [OMPI users] Error when using OpenMPI with SGE multiple hosts

Hi all, > On 11/15/2010 02:11 PM, Reuti wrote: >> Just to give my understanding of the problem: >>> > Sorry, I am still trying to grok all your email as what the problem you > are trying to solve. So is the issue is trying to have two jobs having > processes on the same node be