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5.2 Running MPI Programs

To run your instrumented application, use the ppwrun command in front of your application's run command invocation. Note that you must recompile your application first; for more information please see Compiling MPI Programs.

For instance, if you normally run your application using the following command:

     $ srun -n 16 ./myapp 1 2 3

you would use this command instead:

     $ ppwrun --output=myapp.par srun -n 16 ./myapp 1 2 3

For more information on the ppwrun command, please see ppwrun.