Difference between revisions of "MPICH2"

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(New page: <code class="command">echo</code> "MPD_SECRETWORD=<code class="replace">secret</code>" > $HOME/.mpd.conf}} {{Term|location=frontend|cmd=<code class="command">chmod</code> 600 $HOME/.mpd.co...)
 
 
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<code class="command">echo</code> "MPD_SECRETWORD=<code class="replace">secret</code>" > $HOME/.mpd.conf}}
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Settings for MPICH2 daemon:
{{Term|location=frontend|cmd=<code class="command">chmod</code> 600 $HOME/.mpd.conf}}
+
<source lang="bash">
 +
$ echo "MPD_SECRETWORD=XXX" > ~/.mpd.conf
 +
$ chmod 600 ~/.mpd.conf
 +
</source>
  
Then you can use a script like this to launch mpd/mpirun:
+
Script for running application:
NODES=`uniq < $OAR_NODEFILE | wc -l | tr -d ' '`
+
<source lang="bash">
NPROCS=`wc -l < $OAR_NODEFILE | tr -d ' '`
+
NODES=`uniq < $OAR_NODEFILE | wc -l | tr -d ' '`
mpdboot --rsh=oarsh --totalnum=$NODES --file=$OAR_NODEFILE
+
NPROCS=`wc -l < $OAR_NODEFILE | tr -d ' '`
sleep 1
+
mpdboot --rsh=ssh --totalnum=$NODES --file=$OAR_NODEFILE
mpirun -n $NPROCS <code class="replace">mpich2binary</code>
+
sleep 1
 +
mpirun -n $NPROCS path_to_executable
 +
</source>
 +
 
 +
In MPICH2, you normally don't need to specify -machinefile explicitly for Grid5000 (OAR machinefiles are automatically read)

Latest revision as of 15:29, 22 June 2010

Settings for MPICH2 daemon:

$ echo "MPD_SECRETWORD=XXX" > ~/.mpd.conf
$ chmod 600 ~/.mpd.conf

Script for running application:

NODES=`uniq < $OAR_NODEFILE | wc -l | tr -d ' '`
NPROCS=`wc -l < $OAR_NODEFILE | tr -d ' '`
mpdboot --rsh=ssh --totalnum=$NODES --file=$OAR_NODEFILE
sleep 1
mpirun -n $NPROCS path_to_executable

In MPICH2, you normally don't need to specify -machinefile explicitly for Grid5000 (OAR machinefiles are automatically read)