mpi - How can my program detect, whether it was launch via mpirun -


how can mpi program detect, if launched standalone application or via mpirun?

considering answer , comments semiuseless , hristo iliev, there no general , portable way this. workaround, can check environment variables set mpirun. see e.g.:
http://www.open-mpi.org/faq/?category=running#mpi-environmental-variables


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