Re: [OMPI users] Making MPI_Send to behave as blocking for all the sizes of the messages

Try lowering the eager threshold more gradually... e.g., 4K, 2K, 1K, 512, etc. -- and watch what happens. I think you will see what you expect, except once you get too small then the value is ignored entirely. So, the setting just won't work at the extreme value (0) you want. Maybe the

Re: [OMPI users] launching the mpi runtime

you could spawn more processes from currently running processes. On Thu, Nov 18, 2010 at 3:05 AM, Hicham Mouline wrote: > Hi, > > One typically uses mpirun to launch a set of mpi processes. > > Is there some programmatical interface to launching the runtime and having > the

Re: [OMPI users] Unable to find the following executable

You can qsub a simple "ls" on that path - that will tell you if the path is valid on all machines in that allocation. What typically happens is that home directories aren't remotely mounted, or are mounted on a different location. On Thu, Nov 18, 2010 at 8:31 AM, Tushar Andriyas

Re: [OMPI users] Unable to find the following executable

no its not in the same directory as SWMF. I guess the path is the same since all the machines in a cluster are configured d same way. How do I know if this is not the case? On Thu, Nov 18, 2010 at 8:25 AM, Ralph Castain wrote: > Is you "hello world" test program in the same

Re: [OMPI users] Unable to find the following executable

Is you "hello world" test program in the same directory as SWMF? Is it possible that the path you are specifying is not available on all of the remote machines? That's the most common problem we see. On Thu, Nov 18, 2010 at 7:59 AM, Tushar Andriyas wrote: > Hi there, > >

Re: [OMPI users] Unable to find the following executable

Hi there, Thanks for the expedite reply. The thing is that although the mpirun is setup correctly (since a simple hello world works), when I run the main SWMF.exe executable, the cluster machines somehow fail to find the executable (SWMF.exe). So, I have attached the sample error file from one

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

Am 18.11.2010 um 11:57 schrieb Terry Dontje: > Yes, I believe this solves the mystery. In short OGE and ORTE both work. In > the linear:1 case the job is exiting because there are not enough resources > for the orte binding to work, which actually makes sense. In the linear:2 > case I think

[OMPI users] launching the mpi runtime

Hi, One typically uses mpirun to launch a set of mpi processes. Is there some programmatical interface to launching the runtime and having the process that launched the runtime becoming part of the list of mpi processes, Regards,

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

Yes, I believe this solves the mystery. In short OGE and ORTE both work. In the linear:1 case the job is exiting because there are not enough resources for the orte binding to work, which actually makes sense. In the linear:2 case I think we've proven that we are binding to the right amount

Re: [OMPI users] Problem with sending messages from one of the machines

We just discovered this ticket, which might describe the same problem that we have: https://svn.open-mpi.org/trac/ompi/ticket/1505 It seems unresolved... do you have a workaround for it? I've seen the "-mca opal_net_private_ipv4 " parameter, but I don't exactly know how to use it... At least my

Re: [OMPI users] SYSTEM CPU with OpenMPI 1.4.3

Hi, I found that ./openmpi-1.4.3/ompi/runtime/ompi_mpi_init.c was changed. Calling opal_progress_event_users_decrement was deleted as below. $diff openmpi-1.4.2/ompi/runtime/ompi_mpi_init.c openmpi-1.4.3 /ompi/runtime/ompi_mpi_init.c 813,819d812 < /* Undo ORTE calling

[OMPI users] Making MPI_Send to behave as blocking for all the sizes of the messages

Dear all, I am trying to disable the eager mode in OpenMPI 1.3.3 and I don't see a real difference between the timings. I would like to execute a ping (rank 0 sends a message to rank 1) and to measure the duration of the MPI_Send on rank 0 and the duration of MPI_Recv on rank 1. I have the