call MPI_WIN_ALLOCATE_SHARED failed

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  When I created the Shared memory window using MSMPI, although my DSIP_unit was set to 4, the following error was displayed when the program was executed.What is the cause of this problem?

  Fatal error in MPI_Win_allocate_shared: Other MPI error, error stack:
  MPI_Win_allocate_shared(size=6032048, disp_unit=0, info=0x4, comm=0x1c000000, baseptr=0x44000000, win=0x00B8FB60) failed
  CreateFileMapping failed, error 87

  Monday, November 2, 2020 8:41 AM