From: "Lisandro Dalcin" Date: January 18, 2008 2:43:47 PM CST To: mpi-21@XXXXXXXXXXXXX Subject: Re: [mpi-21] Re: MPI-2 MPI_Comm_spawn inconsistency Reply-To: mpi-21@XXXXXXXXXXXXX On 1/18/08, Rolf Rabenseifner wrote:> This is a proposal for MPI 2.1, Ballot 4. > Significance of non-root arguments to MPI_COMM_SPAWN > Proposal for MPI 2.1, Ballot 4: > If the non-root processes do not use MPI_ERRCODES_IGNORE, > then they have to allocate the appropriate number of entries Are you propossing that the root process have to implicitely inform all other processes in comm group if an error occured? Is'nt it better to return error codes only at root, and let the programmer take the decision if that information should be broadcasted to other procs in group? Perhaps I missing something, but I would prefer to make array_of_errcodes only relevant at root, and filled-in only at root, and others procs in comm group just ignore this entry. -- Lisandro Dalc’n --------------- Centro Internacional de MŽtodos Computacionales en Ingenier’a (CIMEC) Instituto de Desarrollo Tecnol—gico para la Industria Qu’mica (INTEC) Consejo Nacional de Investigaciones Cient’ficas y TŽcnicas (CONICET) PTLC - GŸemes 3450, (3000) Santa Fe, Argentina Tel/Fax: +54-(0)342-451.1594