I've informed the appropriate people about the Trac issue. I recall that MPI stipulates only that MPI_UNIVERSE_SIZE exist; it need not be defined. I think that MPICH might set MPI_UNIVERSE_SIZE in the process manager. What PM are you using? Jeff On Mon, Feb 18, 2013 at 5:52 AM, Reuti <[email protected]> wrote:
Hi,
a call:
error=MPI_Comm_get_attr(MPI_COMM_WORLD, MPI_UNIVERSE_SIZE, &universe_sizep, &flag);
worked in MPICH2 1.4.1p1. But the "flag" returned unsupported in 1.5 and 3.0.2. Was this info removed from being retrieved?
-- Reuti
PS: I found http://trac.mpich.org/projects/mpich/ticket/1426 mentioning MPI_UNIVERSE_SIZE but it throws an error:
TracError: The Trac Environment needs to be upgraded.
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-- Jeff Hammond Argonne Leadership Computing Facility University of Chicago Computation Institute [email protected] / (630) 252-5381 http://www.linkedin.com/in/jeffhammond https://wiki.alcf.anl.gov/parts/index.php/User:Jhammond