Listing 6: Warewulf – Part 4
Listing 6 for Warewulf Part 4
Listing 6: Torque Job Script
[laytonjb@test1 TEST]$ more pbs-test_001 1 #!/bin/bash 2 ### 3 ### Sample script for running MPI example for computing PI (Fortran 90 code) 4 ### 5 ### Jeff Layton 6 ### 8/5/2012 7 8 ### Set the job name 9 #PBS -N mpi_pi_fortran90 10 11 ### Run in the queue named “batch” 12 #PBS -q batch 13 14 ### Specify the number of cpus for your job. This example will allocate 4 cores 15 ### using 3 processors on 1 node. 16 #PBS -l nodes=1:ppn=3 17 18 ### Tell PBS the anticipated run-time for your job, where walltime=HH:MM:SS 19 #PBS -l walltime=0:10:00 20 21 ### Load needed modules here 22 . /etc/profile.d/modules.sh 23 module load compilers/open64/5.0 24 module load mpi/mpich2/1.5b1-open64-5.0 25 26 ### Switch to the working directory; by default TORQUE launches processes 27 ### from your home directory. 28 cd $PBS_O_WORKDIR 29 echo Working directory is $PBS_O_WORKDIR 30 31 # Calculate the number of processors allocated to this run. 32 NPROCS=`wc -l < $PBS_NODEFILE` 33 34 # Calculate the number of nodes allocated. 35 NNODES=`uniq $PBS_NODEFILE | wc -l` 36 37 ### Display the job context 38 echo “Running on host `hostname` “ 39 echo “Start Time is `date` “ 40 echo “Directory is `pwd` “ 41 echo “Using ${NPROCS} processors across ${NNODES} nodes “ 42 43 mpirun -np 3 ./mpi_pi < file1 > output.mpi_pi 44 45 echo “End time is `date` “