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From: Jon Mason (jon_at_[hidden])
Date: 2007-11-01 18:52:06


On Wed, Oct 31, 2007 at 06:45:10PM -0400, Tim Prins wrote:
> Hi Jon,
>
> Just to make sure, running 'ompi_info' shows that you have the udapl btl
> installed?

Yes, I get the following:
# ompi_info | grep dapl
                 MCA btl: udapl (MCA v1.0, API v1.0, Component v1.2.5)

If I do not include "self" in the mca, then I get an error saying it
cannot find the btl component:

# mpirun --n 2 --host vic12-10g,vic20-10g -mca btl udapl /usr/mpi/gcc/openmpi-1.2.2-1/tests/IMB-2.3/IMB-MPI1 pingpong
--------------------------------------------------------------------------
No available btl components were found!

This means that there are no components of this type installed on your
system or all the components reported that they could not be used.

This is a fatal error; your MPI process is likely to abort. Check the
output of the "ompi_info" command and ensure that components of this
type are available on your system. You may also wish to check the
value of the "component_path" MCA parameter and ensure that it has at
least one directory that contains valid MCA components.

--------------------------------------------------------------------------
mpirun noticed that job rank 1 with PID 4335 on node vic20-10g exited on
signal 15 (Terminated).

# ompi_info --all | grep component_path
                 MCA mca: parameter "mca_component_path" (current value: "/usr/mpi/gcc/openmpi-1.2-svn/lib/openmpi:/root/.openmpi/components")

# ls /usr/mpi/gcc/openmpi-1.2-svn/lib/openmpi | grep dapl
mca_btl_udapl.la
mca_btl_udapl.so

So it looks to me like it should be finding it, but perhaps I am lacking
something in my configuration. Any ideas?

Thanks,
Jon

>
> Tim
>
> On Wednesday 31 October 2007 06:11:39 pm Jon Mason wrote:
> > I am having a bit of a problem getting udapl to work via mpirun (over
> > open-mpi, obviously). I am running a basic pingpong test and I get the
> > following error.
> >
> > # mpirun --n 2 --host vic12-10g,vic20-10g -mca btl udapl,self
> > /usr/mpi/gcc/open*/tests/IMB*/IMB-MPI1 pingpong
> > --------------------------------------------------------------------------
> > Process 0.1.1 is unable to reach 0.1.0 for MPI communication.
> > If you specified the use of a BTL component, you may have
> > forgotten a component (such as "self") in the list of
> > usable components.
> > --------------------------------------------------------------------------
> > --------------------------------------------------------------------------
> > 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)
> > --------------------------------------------------------------------------
> > *** An error occurred in MPI_Init
> > *** before MPI was initialized
> > *** MPI_ERRORS_ARE_FATAL (goodbye)
> > --------------------------------------------------------------------------
> > Process 0.1.0 is unable to reach 0.1.1 for MPI communication.
> > If you specified the use of a BTL component, you may have
> > forgotten a component (such as "self") in the list of
> > usable components.
> > --------------------------------------------------------------------------
> > --------------------------------------------------------------------------
> > 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)
> > --------------------------------------------------------------------------
> > *** An error occurred in MPI_Init
> > *** before MPI was initialized
> > *** MPI_ERRORS_ARE_FATAL (goodbye)
> >
> >
> >
> > The command is successful if udapl is replaced with tcp or openib. So I
> > think my setup is correct. Also, dapltest successfully completes
> > without any problems over IB or iWARP.
> >
> > Any thoughts or suggestions would be greatly appreciated.
> >
> > Thanks,
> > Jon
> >
> > _______________________________________________
> > users mailing list
> > users_at_[hidden]
> > http://www.open-mpi.org/mailman/listinfo.cgi/users
>
>
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