[Pw_forum] network problem for parallel calculations

Mithra Chan chan.mithra at gmail.com
Mon Oct 18 11:18:03 CEST 2010


Dear Lorenzo,

It seems we can use 'disk_io' to do that. I am trying, we will see.

Regards,

Mithra Chan

2010/10/18 Mithra Chan <chan.mithra at gmail.com>

> Dear Lorenzo,
>
> Thanks for you suggestion. I think that would not work. Because the job is
> distributed randomly, I do not know which node it will lated at. I tried by
> setting outdir='./' and coy the INPUT file to $TMP then run it locally. In
> this case it write files locally, but I got an error which says "from davcio
> : error #        10  error while writing to file".
>
> Best regards,
>
> Mithra Chan
>
>
> 2010/10/18 Lorenzo Paulatto <Lorenzo.Paulatto at impmc.upmc.fr>
>
> Dear Mithra,
>> by default, QE should use the current directory as temporary space.
>> However, you can control this behavior busing the keyword
>> outdir="/whatever/directory" in the &control namelist (check the manual
>> Doc/INPUT_PW.txt !!!).
>>
>> > INDIR=`pwd`
>> > echo $TMP    > $INDIR/tmpdir
>> > cd $TMP
>>
>> This should work, but if $TMP is empty, than it will just use the home
>> directory!
>>
>> > cp $TMP/* .
>>
>> are you sure copying everything to the home directory is not stalling the
>> network?
>>
>> best regards
>>
>>
>>
>> --
>> Lorenzo Paulatto
>> post-doc @ IMPMC/UPMC - Université Paris 6
>> phone: +33 (0)1 44 27 74 89
>> www:   http://www-int.impmc.upmc.fr/~paulatto/<http://www-int.impmc.upmc.fr/%7Epaulatto/>
>>
>> previously (take note of the change!):
>> phd student @ SISSA  &  DEMOCRITOS (Trieste)
>> phone: +39 040 3787 511
>> www:   http://people.sissa.it/~paulatto/<http://people.sissa.it/%7Epaulatto/>
>> _______________________________________________
>> Pw_forum mailing list
>> Pw_forum at pwscf.org
>> http://www.democritos.it/mailman/listinfo/pw_forum
>>
>
>
>
> --
> Dr. Mithra Chan,
> Department of Physics, National University of Singapore, Singapore
> chan.mithra at gmail.com
>
>


-- 
Dr. Mithra Chan,
Department of Physics, National University of Singapore, Singapore
chan.mithra at gmail.com
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