MPI with gLite (OBSOLETE --> please see INFNs mpi.tar.gz!)

mpi-glite.jdl

JobType = "MPICH";
NodeNumber = 6;
Executable = "cpi";
StdOutput = "cpi.out";
StdError = "cpi.err";
InputSandbox = {"cpi"};
OutputSandbox = {"cpi.err","cpi.out"};
Requirements =   (other.GlueCEInfoTotalCPUs >= NodeNumber) && 
Member("MPICH", other.GlueHostApplicationSoftwareRunTimeEnvironment);

MPI with LCG (pre-gLite)

mpi.jdl

Type = "Job";
   JobType = "MPICH";
   Executable = "MPItest.sh";
     NodeNumber = 5;
   Arguments = "cpi 5";
   StdOutput = "test.out"; StdError = "test.err";
   InputSandbox = {"MPItest.sh","cpi"};
   OutputSandbox = {"test.err","test.out","executable.out"};
   Requirements   = other.GlueCEInfoLRMSType == "PBS" || other.GlueCEInfoLRMSType == "LSF";

MPItest.sh

for i in `cat $HOST_NODEFILE` ; do
   echo "Mirroring via SSH to $i"
   # creates the working directories on all the nodes allocated for parallel execution.
   ssh $i mkdir -p `pwd`
   # copies the needed files on all the nodes allocated for parallel execution.
   /usr/bin/scp -rp ./* $i:`pwd`
   # checks that all files are present on all the nodes allocated for parallel execution.
   ssh $i ls `pwd`
done

# execute the parallel job with mpirun.
echo "Executing $EXE"
chmod 755 $EXE
mpirun -np $CPU_NEEDED -machinefile $HOST_NODEFILE `pwd`/$EXE > executable.out''

-- RichardDeJong - 14 Jun 2006