[mpich-discuss] undefined symbol: MPIR_Thread

[Gus Correa]

Anthony Chan wrote:
> What mechanism does CCSM use to launch the various climate models, e.g. POP ?
> 
> ----- Original Message -----
>> It seems that mpi_comm_spawn is not used.
>> I have tried with the nm and find command, changing the suffixes, but
>> there are no results....
>>
>> On 02/07/2011 06:34 PM, Anthony Chan wrote:
>>> find<path_to_ccsm> -name \*.f -exec grep -Hi MPI_Comm_spawn {} \;
>> --
>>
>>
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Hi Anthony, Matthias

Anthony:
It is now SPMD, a sigle executable (cesm.exe).
(Older versions were MPMD.)

Matthias:
Did you do 'ldd cesm.exe'?
What is the output?
Maybe I missed it, I saw only your 'ldd mpiexec' posted here.

I wonder if the use of NetCDF4 could be the problem,
via a dependency on HDF5 libraries,
and perhaps a dependency on an yet unnamed version of MPI,
if parallel IO was enabled there.

Did you try cesm with Netcdf3?
Works for me.

My two cents,
Gus Correa