MPI job submission using SunStudio 12
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The default compiler, Sun Studio 12, is installed in /opt/sun/sunstudio12.
[heri@fep ~]$ cc -V
cc: Sun C 5.9 Linux_i386 Patch 124871-01 2007/07/31
usage: cc [ options] files. Use 'cc -flags' for details
For this example we will compile a basic hello_world example.
1 /* C Example */
2 #include
3 #include "mpi.h"
4
5
6 int main (int argc, char *argv[])
7 {
8 int rank, size;
9
10 MPI_Init (&argc, &argv); /* starts MPI */
11 MPI_Comm_rank (MPI_COMM_WORLD, &rank); /* get current process id */
12 MPI_Comm_size (MPI_COMM_WORLD, &size); /* get number of processes */
13 printf( "Hello world from process %d of %d\n", rank, size );
14 MPI_Finalize();
15 return 0;
16 }
Step 1: compile the program using mpicc
mpicc -o out_file myfile.c
Step 2: submit the job to the batch system
qsub -q ibm-quad -pe ibm-quad [nr_procesoare <56] -cwd myscript.sh
| -q |
selected queue. By default you should use ibm-quad. Available queues should be ibm-quad, fs-dual, fs-p4 |
| -pe [nr-procs] |
Paralel Environment (MPI environment) attached to the selected queue. Use the same as queue name. [nr-procs] - number of MPI processes to run. |
| -cwd | Change working directory. By default, all nodes use a shared home environment This option forces sun grid engine to use the current working directory as |
| myscript.sh |
execution script: #!/bin/bash /opt/openmpi/default/bin/mpirun -np $NSLOTS ./out_file |