minor

Author: WeiqunZhang

Src/Base/AMReX_MPMD.cpp

@@ -83,6 +83,7 @@ void Finalize ()
     MPI_Comm_free(&app_comm);
     if (mpi_initialized_by_us) {
         MPI_Finalize();
+        mpi_initialized_by_us = false;
     }
     initialized = false;
 }