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From: George Bosilca (bosilca_at_[hidden])
Date: 2006-11-09 14:00:00


Did you compile Open MPI in debug mode ? Without the debug mode no
output will be available.

   george.

On Nov 9, 2006, at 1:53 PM, Kenneth Chiu wrote:

> Sorry, I mistyped that. I should have known better than to
> type rather than cut-and-paste. A cut-and-paste from
> shell script is:
>
> mpirun -np $SLURM_NPROCS -mca coll_base_verbose 1 -mca
> coll_tuned_bcast_algorithm 0 /u/chiuk/cfd/main
>
> On 11/9/2006 1:27 PM, George Bosilca wrote:
>> I think the name of the verbose argument is coll_base_verbose. You
>> can check using ompi_info.
>>
>> ompi_info --param coll tuned | grep verbose
>> MCA coll: parameter "coll_base_verbose" (current
>> value: "0")
>>
>> george.
>>
>> On Nov 9, 2006, at 1:11 PM, Kenneth Chiu wrote:
>>
>>> I am having a hanging problem using bcast that I'm trying to track
>>> down. I added the above, hoping to get some debugging output,
>>> but didn't see any. I am using slurm in batch mode.
>>>
>>> slurm -n 20 -b slurm_script.sh
>>>
>>> and slurm_script.sh contains:
>>>
>>> mpirun -np $SLURM_NPROCS --mca coll_tuned_base_verbose 1 /u/
>>> chiuk/cfd/main
>>>
>>> By the way, I also tried:
>>>
>>> mpirun -np $SLURM_NPROCS --mca coll ^tuned /u/chiuk/cfd/main
>>>
>>> but got the same hang. This is on odin.cs.indiana.edu.
>>>
>>> Thanks.
>>> _______________________________________________
>>> users mailing list
>>> users_at_[hidden]
>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>>
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