[OMPI users] How to Free Memory Allocated with MPI_Win_allocate()?

[Benjamin Brock]

How are we meant to free memory allocated with MPI_Win_allocate()?  The
following crashes for me with OpenMPI 1.10.6:

#include <cstdlib>
#include <cstdio>
#include <mpi.h>

int main(int argc, char **argv) {
  MPI_Init(&argc, &argv);

  int n = 1000;
  int *a;

  MPI_Win win;
  MPI_Win_allocate(n*sizeof(int), sizeof(int), MPI_INFO_NULL,
MPI_COMM_WORLD, &a, &win);

  /* Why does the following crash? */
  MPI_Free_mem(a);

  MPI_Finalize();

  return 0;
}

Any suggestions?

Ben

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