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From: Kenneth Chiu (chiuk_at_[hidden])
Date: 2006-11-09 14:10:08


That does seem to be the problem. I'm looking into it more.

On 11/9/2006 2:00 PM, George Bosilca wrote:
> 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.
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