Open MPI logo

Open MPI User's Mailing List Archives

  |   Home   |   Support   |   FAQ   |  

This web mail archive is frozen.

This page is part of a frozen web archive of this mailing list.

You can still navigate around this archive, but know that no new mails have been added to it since July of 2016.

Click here to be taken to the new web archives of this list; it includes all the mails that are in this frozen archive plus all new mails that have been sent to the list since it was migrated to the new archives.

Subject: Re: [OMPI users] PML add procs failed --> Returned "Unreachable" (-12) instead of "Success" (0)
From: Ralph Castain (rhc_at_[hidden])
Date: 2009-03-26 11:07:05

Hi Alex

The problem is likely to be that there is no connection available
between grid03 and grid04. Did you create/define an Ethernet/IP
interface directly between those two virtual machines?

Otherwise, there is no way for MPI to communicate between them.


On Mar 26, 2009, at 9:00 AM, Alessandro Surace wrote:

> Hi Guys,
> I'm really new in mpi. I've created a small grid composed of virtual
> and
> real host.
> grid01 real/Centos/(Open MPI) 1.2.5
> grid03 virtual (xen)/Centos/(Open MPI) 1.2.5
> grid04 virtual (vmware)/Centos/(Open MPI) 1.2.5
> When I try to run a parallel job like this:
> mpirun -v -H grid01,grid04 -np 2 /mnt/ewd/mpi/fibonacci/
> fibonacci_mpi
> The job run
> If I try instead
> mpirun -v -H grid03,grid04 -np 2 /mnt/ewd/mpi/fibonacci/
> fibonacci_mpi
> or with all 3 nodes I get the error:
> It looks like MPI_INIT failed for some reason; your parallel process
> is
> likely to abort. There are many reasons that a parallel process can
> fail during MPI_INIT; some of which are due to configuration or
> environment
> problems. This failure appears to be an internal failure; here's some
> additional information (which may only be relevant to an Open MPI
> developer):
> PML add procs failed
> --> Returned "Unreachable" (-12) instead of "Success" (0)
> Seems like there is something wrong between grid03, grid04.
> But If I run the job indivdually on every host it runs without
> problem.
> I can't understand what happens.
> Any Ideas?
> In attach all the details.
> But Does Exist a guide / howto configure and setup openmpi (not
> build) ?
> Thanks
> Alex
> <DEBUG.tar.gz>_______________________________________________
> users mailing list
> users_at_[hidden]