Dear Reuti & members of beowulf, I need to execute a parallel job thru grid engine.
MPICH2 is installed with Process Manager:mpd. Added a parallel environment MPICH2 into SGE: $ qconf -sp MPICH2 pe_name MPICH2 slots 999 user_lists NONE xuser_lists NONE start_proc_args /share/apps/MPICH2/startmpi.sh -catch_rsh $pe_hostfile stop_proc_args /share/apps/MPICH2/stopmpi.sh allocation_rule $pe_slots control_slaves FALSE job_is_first_task TRUE urgency_slots min Added this PE to the default queue: all.q. mpdboot is done. mpd's are running on two nodes. The script for submitting this job thru sge is: $ cat subsamplempi.sh #!/bin/bash #$ -S /bin/bash #$ -cwd #$ -N Samplejob #$ -q all.q #$ -pe MPICH2 4 #$ -e ERR_$JOB_NAME.$JOB_ID #$ -o OUT_$JOB_NAME.$JOB_ID date hostname /opt/MPI_LIBS/MPICH2-GNU/bin/mpirun -np $NSLOTS -machinefile $TMP_DIR/machines ./samplempi echo "Executed" exit 0 The job is getting submitted, but not executing. The error and output file contain: cat ERR_Samplejob.192 /usr/bin/env: python2.4: No such file or directory $ cat OUT_Samplejob.192 -catch_rsh /opt/gridengine/default/spool/compute-0-0/active_jobs/192.1/pe_hostfile compute-0-0 compute-0-0 compute-0-0 compute-0-0 Fri Feb 22 12:57:18 IST 2008 compute-0-0.local Executed So the problem is coming for python2.4. $ which python2.4 /opt/rocks/bin/python2.4 I googled this error. Then created a symbolic link: # ln -sf /opt/rocks/bin/python2.4 /bin/python2.4 After this also same error is coming. I guess the problem might be different. i.e. gridengine might not getting the link to running mpd. And the procedure followed by me to configure PE might be wrong. So, I expect from you to clear my doubts and help me to resolve this error. 1. Is the PE configuration of MPICH2 + grid engine right? 2. Without Tight integration, is there a way to run a MPICh2(mpd) based job using gridengine? 3. In smpd-daemon based and daemonless MPICH2 tight integration, which one is better? 4. Can we do mvapich2 tight integration with SGE? Any differences with process managers wrt MVAPICH2? Thanks & Best Regards, Sangamesh B
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