On 7/31/07, Dries Kimpe <dries.ki...@cs.kuleuven.be> wrote: > The MPI_File_get_view description in the standard has some issues related > to copies and named datatypes: > > see > http://www-unix.mcs.anl.gov/~gropp/projects/parallel/MPI/mpi-errata/discuss/fileview/fileview-1-clean.txt
Indeed, your comment was exactly the source of my comment (BTW, thank you, this helped me to fix my Python wrappers) In general, I think MPI standard should be fixed/clarified in many places regarding to handling of returned references. Testing for predefined Comm a Group handling is rather easy, but for Datatypes is really cumbersome. Perhaps a MPI_Type_is_named(MPI_Datatype, int*flag) would help a lot. What do you think? -- 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