[mvapich-discuss] hang in mpi_comm_create

[Krishna Kandalla]

Hi Dan,
       Thanks for reporting this issue. I have built mvapich2-1.6rc3
in the exact same way as you indicated and tried a few simple mpich2
test cases with MPI_Comm_Create and they seem to be working. We were
wondering if you have any  thoughts on how we could reproduce this
issue on our systems.  It will surely help if you could let us know
more about your application. Also, is there a specific reason why you
might require the -DRDMA_CM and/or the --enable-error flags?

Thanks,
Krishna


On Mon, Mar 7, 2011 at 12:21 PM, Dan Kokron <daniel.kokron at nasa.gov> wrote:
> I am using mvpich2-1.6rc3 on a large Linux cluster (see
> http://www.nas.nasa.gov/Resources/Systems/pleiades.html for more
> information about the cluster)
>
> MVAPICH is configured as follows.
> ./configure CC=icc CXX=icpc F77=ifort F90=ifort CFLAGS=-fpic -DRDMA_CM
> CXXFLAGS=-fpic -DRDMA_CM FFLAGS=-fpic F90FLAGS=-fpic
> --prefix=/u/dkokron/play/mvapich2-1.6rc3/install.dbg --enable-f77
> --enable-f90 --enable-cxx --enable-mpe --enable-romio
> --with-file-system=lustre --enable-threads=default --with-rdma=gen2
> --with-hwloc --enable-error-checking=all --enable-error-messages=all
> --enable-g=all --enable-fast=none
>
> The configure log is attached.
>
> My application gets wedged on a call to MPI_COMM_CREATE.  It does not
> matter if SHMEM collective are enabled or not.  Also attached are
> summaries of stack traces from all MPI processes.
>
> Any ideas on how to proceed in debugging this issue?
>
> --
> Dan Kokron
> Global Modeling and Assimilation Office
> NASA Goddard Space Flight Center
> Greenbelt, MD 20771
> Daniel.S.Kokron at nasa.gov
> Phone: (301) 614-5192
> Fax:   (301) 614-5304
>
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