Re: [OMPI users] WRF Problem running in Parallel on multiple nodes (cluster)

2011-05-03 Thread Ralph Castain
The error message is telling you the problem. You don't have your remote path set so it can find the OMPI installation on the remote hosts. Look at the OMPI FAQ section for more info if you are unsure how to set paths on remote hosts. On May 3, 2011, at 2:04 AM, Ahsan Ali wrote: > Hello, > >

[OMPI users] WRF Problem running in Parallel on multiple nodes (cluster)

2011-05-03 Thread Ahsan Ali
Hello, I am able to run WRFV3.2.1 using mpirun on multiple cores of single machine, but when I want to run it across multiple nodes in cluster using hostlist then I get error, The compute nodes are mounted with the master node during boot using NFS. I get following error. Please help. [root@pmd02

Re: [OMPI users] WRF Problem running in Parallel (Gus Correa)

2011-02-23 Thread Gus Correa
Hi Ashan Small stacksize sometimes causes segmentation fault, specially on large programs like WRF. However, it is not the only possible cause, of course. Are you sure you set the stacksize unlimited on *all* nodes where WRF ran? It may be tricky. Ask your system administrator to do it on a per

Re: [OMPI users] WRF Problem running in Parallel (Gus Correa)

2011-02-23 Thread Ahsan Ali
Hello Gus, Jody The system has enough memory. I unlimited the stack size before runnning WRF by the command *ulimit -s unlimited*.But he problem occured. Thanks Hi Ahsan, Jody > > Just a guess that this may be a stack size problem. > Did you try to run WRF with unlimited stack size? > Also, does

Re: [OMPI users] WRF Problem running in Parallel (jody)

2011-02-22 Thread Ahsan Ali
Dear Jody, WRF is running well on serial option (i.e single interface) . I am running another application HRM using OpenMPI , there is no issue with that and application is running on cluster of many nodes. The wrf manual says the following about MPI run: I*f you have run the model on multiple pr

Re: [OMPI users] WRF Problem running in Parallel

2011-02-22 Thread Gus Correa
Hi Ahsan, Jody Just a guess that this may be a stack size problem. Did you try to run WRF with unlimited stack size? Also, does your machine have enough memory to run WRF? I hope this helps, Gus Correa jody wrote: Hi At a first glance i would say this is not a OpenMPI problem, but a wrf probl

Re: [OMPI users] WRF Problem running in Parallel

2011-02-22 Thread jody
Hi At a first glance i would say this is not a OpenMPI problem, but a wrf problem (though io must admit i have no knowledge whatsoever ith wrf) Have you tried running a single instance of wrf.exe? Have you tried to run a simple application (like a "hello world") on your nodes? Jody On Tue, Feb

[OMPI users] WRF Problem running in Parallel

2011-02-22 Thread Ahsan Ali
Hello, I an stuck in a problem that is regarding the running for Weather research and Forecasting Model (WRFV 3.2.1). I get the following error while running with mpirun. Any help would be highly appreciated. *[pmdtest@pmd02 em_real]$ mpirun -np 4 wrf.exe starting wrf task 0 of 4 starting wrf t