[Darshan-users] Darshan error

Phil Carns carns at mcs.anl.gov
Mon Dec 16 20:24:49 CST 2013


I'm stumped then.  Do you happen to have an MPI-IO test program that you 
could use to try writing a different file in that directory to see if it 
works?  Darshan isn't doing anything particularly unusual at that step 
besides trying to collectively open a file in that directory.

thanks,
-Phil

On 12/16/2013 06:06 PM, Isaila, Florin D. wrote:
> Yes, /sandbox is local and I run the MPI job with 1 process on the
> local  machine.
>
> Regards
> Florin
>
>
> On Mon, Dec 16, 2013 at 3:49 PM, Phil Carns <carns at mcs.anl.gov> wrote:
>> Hi Florin,
>>
>> I'm not exactly sure.  Is the /sandbox/darshan_logs directory (and all of
>> the subdirectories created by mk-log-dirs.pl) accessible from all of the
>> processes in the MPI job?  All of them will need to be able to write to it
>> at MPI_Finalize() time.
>>
>> -Phil
>>
>>
>> On 12/16/2013 12:19 PM, Isaila, Florin D. wrote:
>>> Hi,
>>>
>>> I installed Darshan on a Ubuntu machine, configured with
>>> ./configure --with-mem-align=8 --with-log-path=/sandbox/darshan_logs
>>> --with-jobid-env=PBS_JOBID --enable-group-readable-logs CC=mpicc
>>> --prefix=/homes/fisaila/software/darshan
>>>
>>> created the mpicc.darshan and the log directory with
>>> darshan-mk-log-dirs.pl.
>>>
>>> When I run a basic MPI-IO program I get the following error and the
>>> darshan log is not created:
>>>
>>> darshan library warning: unable to open log file
>>>
>>> /sandbox/darshan_logs/2013/12/16/fisaila_write_id30102_12-16-39920-10992848975456489369.darshan_partial:
>>> File does not exist, error stack:
>>> ADIO_RESOLVEFILETYPE_FNCALL(481): Invalid file name
>>>
>>> /sandbox/darshan_logs/2013/12/16/fisaila_write_id30102_12-16-39920-10992848975456489369.darshan_partial
>>> darshan library warning: unable to write log file
>>>
>>> /sandbox/darshan_logs/2013/12/16/fisaila_write_id30102_12-16-39920-10992848975456489369.darshan_partial
>>>
>>> Any idea where this can come from?
>>>
>>> Thanks
>>> Florin
>>> _______________________________________________
>>> Darshan-users mailing list
>>> Darshan-users at lists.mcs.anl.gov
>>> https://lists.mcs.anl.gov/mailman/listinfo/darshan-users
>>
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