[alcf-discuss] Labeling stdout, stderr with rank?

[Peter Messmer]

Hi Tim,

Did you try setting the MPIEXEC_PREFIX_DEFAULT (or MPIEXEC_PREFIX_STDOUT 
or MPI_PREFIX_STDERR) environment variables?

Peter


On 4/12/2010 8:41 PM, Anthony Chan wrote:
>
> Hi Jeff,
>
> There are occasions that it is difficult to modify the source code
> to print out the rankID.  A typical example is error/assertion
> message from system libraries like MPI or math library.  It
> is useful for the cqsub/mpirun to prefix rank ID to show where
> offending message comes from.
>
> A.Chan
>
> ----- "Jeff Hammond"<jhammond at mcs.anl.gov>  wrote:
>
>> I'm sorry I cannot answer the question directly, but is it not
>> reasonable to label fprintf statements directly?
>>
>> printf("hello world\n");
>>
>> becomes
>>
>> printf("%d: hello world\n",DCMF_Messager_rank());
>>
>> I imagine you can do this with the preprocessor or a remapping of
>> printf itself, although the latter may involve some fun-and-games
>> with
>> symbol redefinition at link time.
>>
>> Best,
>>
>> Jeff
>>
>> On Mon, Apr 12, 2010 at 6:01 PM, Tim Tautges<tautges at mcs.anl.gov>
>> wrote:
>>> Hi all,
>>>   Is there any way to label the .output, .error files with the rank
>> they came
>>> from, producing a separate file for each proc?  I've searched around
>> in the
>>> FAQ and elsewhere, but can't find anything.  I recall seeing
>> somewhere that
>>> you can use the qsub -O option, and some special character like %
>> that gets
>>> replaced by the rank.  I've tried %, but that doesn't work.
>>>
>>> Also, I'm using --env MPIRUN_LABEL=1 on my qsub command, but it's
>> not
>>> labeling output by rank like it's supposed to be.  Has anyone else
>> seen
>>> this?
>>>
>>> Thanks.
>>>
>>> - tim
>>>
>>> --
>>> ================================================================
>>> "You will keep in perfect peace him whose mind is
>>>   steadfast, because he trusts in you."               Isaiah 26:3
>>>
>>>              Tim Tautges            Argonne National Laboratory
>>>          (tautges at mcs.anl.gov)      (telecommuting from UW-Madison)
>>>          phone: (608) 263-8485      1500 Engineering Dr.
>>>            fax: (608) 263-4499      Madison, WI 53706
>>>
>>> _______________________________________________
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>>>
>>
>>
>>
>> --
>> Jeff Hammond
>> Argonne Leadership Computing Facility
>> jhammond at mcs.anl.gov / (630) 252-5381
>> http://www.linkedin.com/in/jeffhammond
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