I am using Open MPI 2.1.1 along with Intel Fortran 17 update 4 and I am experiencing what I think is a memory leak with a job that uses 184 MPI processes. The memory used per process appears to be increasing by about 1 to 2 percent per hour. My code uses mostly persistent sends and receives to exchange packets that are on the order of 1 MB. I am using not using a special form of MPI_INIT_SEND, like buffered or synchronous. What can I do to identify where the leak is occurring? I have run this came case with Intel MPI and I did not see the leak.
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