I_MPI_PIN_MAPPING

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I_MPI_PIN_MAPPING

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I see Intel MPI sets the following environment variables.

I_MPI_PIN_INFO x0,1,2,3,7,8,9,13,14
I_MPI_PIN_MAPPING 5:0 0,1 15,2 4,3 10,4 28

I think I_MPI_PIN_INFO is the cores that MPI process is pinned on. But how do I interpret I_MPI_PIN_MAPPING? How does these affect MKL? Thanks.

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