Dear developers of MPICH, I am running MPICH-3.0.4 with a Fortran95-code on a LINUX-cluster using the INTEL-14.0.1 Ftn-compiler. In that code I employ the shared memory feature (using MPI_WIN_ALLOCATE_SHARED and MPI_WIN_SHARED_QUERY). It works fine, but nevertheless I detected a little bug in MPI_WIN_SHARED_QUERY: MPI_WIN_SHARED_QUERY(WIN, RANK, SIZE, DISP_UNIT, BASEPTR, IERROR) The MPI-3.0 Standard document (chapter 11.2, on p. 410) prescribes that the 4th parameter DISP_UNIT is a result from the call of this sbr. However, with MPICH no value is returned for DISP_UNIT. You can easily test that, by setting DISP_UNIT to a control number ( e.g. DISP_UNIT = -7777 ) just before the call of sbr MPI_WIN_SHARED_QUERY. Just after that sbr-call the variable DISP_UNIT still contains that control number, but should not. Greetings Michael Rachner _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss