On 7/28/07, Brian Barrett <bbarr...@lanl.gov> wrote: > In my opinion, we conform to the standard. We reference count the > group, it's incremented on call to MPI_WIN_GROUP, and you can safely > call MPI_GROUP_FREE on the group returned from MPI_WIN_GROUP. Groups > are essentially immutable, so there's no way I can think of that we > violate the MPI standard.
Your reasoning make a lot of sense. It there seems to be no point in requiring a true 'duplicate' being returned by Win.Get_group(). > Others are, of course, free to disagree with me. I do not strictly disagree with you, but the standard do (if it is readed like a lawyer). In any case, this is other corner case that should be clarified in the standard... In the mean time, I would prefer to follow the standard as close as possible. If not, some external, stupid test suite (like the one I have for mip4py) would report that OMPI is wrong about this point. BTW, Were is the place to disccuss this stantard isues? There is a mailing list at mpi-forum.org? Regards, -- Lisandro Dalcín --------------- Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC) Instituto de Desarrollo Tecnológico para la Industria Química (INTEC) Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) PTLC - Güemes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594
