[mpich-discuss] MPD in the PBS environment

[Anne M. Hammond]

Yes.  NNODES is set:

setenv NNODES `wc $PBS_NODEFILE|awk '{print $1}'`


On Thu, 12 Feb 2009, Anthony Chan wrote:

>
> Did you set NNODES in your PBS script ?
>
> ----- "Anne M. Hammond" <hammond at txcorp.com> wrote:
>
>> These are the relevant lines from the qsub file:
>>
>> sort -u $PBS_NODEFILE > mpd.hosts
>> mpdboot -f mpd.hosts -n $NNODES --rsh=/usr/bin/rsh
>> mpiexec -machinefile $PBS_NODEFILE -np $NNODES $RUNJOB -i
>> $WORK_AREA/$PREFILE/$PREFILE.in -dim 2 -n 100000 -d 10000 >
>> $PREFILE.log
>> mpdallexit
>>
>> mpd.hosts:
>> node12
>> node13
>>
>> When the ring is not running, this is the error message from the
>> PBS job:
>>
>> mpdroot: cannot connect to local mpd at: /tmp/mpd2.console_root
>>      probable cause:  no mpd daemon on this machine
>>      possible cause:  unix socket /tmp/mpd2.console_root has been
>> removed
>> mpiexec_node12.cl.corp.com (__init__ 1190): forked process failed;
>> status=255
>>
>> Do you have to have a persistent ring booted in order to use mpd
>> from PBS?  Or is my qsub script incorrect?
>>
>> Thanks in advance,
>> Anne
>
>

-- 

Anne M. Hammond - Systems / Network Administration - Tech-X Corp
                   hammond_at_txcorp.com 720-974-1840