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From: Brian Barrett (brbarret_at_[hidden])
Date: 2006-04-13 13:10:57


On Apr 12, 2006, at 9:09 AM, liuliang_at_[hidden] wrote:

> We have a Mac network running xgrid and we have successfully installed
> mpi. We want to run a parallell version of mrbayes. It did not have
> any
> problem when we compiled mrbayes using mpicc. But when we tried to
> run the
> compiled mrbayes, we got lots errror message
>
> mpiexec -np 4 ./mb -i yeast_noclock_imp.txt
> Parallel version of
>
> Parallel version of
>
> Parallel version of
>
> Parallel version of
>
> [ea285fltprinter.scc.ohio-state.edu:03327] *** An error occurred in
> MPI_comm_size
> [ea285fltprinter.scc.ohio-state.edu:03327] *** on communicator
> MPI_COMM_WORLD
> [ea285fltprinter.scc.ohio-state.edu:03327] *** MPI_ERR_COMM: invalid
> communicator
> [ea285fltprinter.scc.ohio-state.edu:03327] *** MPI_ERRORS_ARE_FATAL
> (goodbye)

This indicates that the application is calling an MPI function with
an invalid communicator. Unfortunately, this is a hard one to track
down without more information. What version of mrbayes are you using
and can you share your input deck?

Thanks,

Brian

-- 
   Brian Barrett
   Open MPI developer
   http://www.open-mpi.org/