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MPI_Comm_accept(3OpenMPI)                                                          MPI_Comm_accept(3OpenMPI)



NAME
       MPI_Comm_accept  - Establishes communication with a client.


SYNTAX
C Syntax
       #include <mpi.h>
       int MPI_Comm_accept(char *port_name, MPI_Info info, int root, MPI_Comm comm, MPI_Comm *newcomm)


Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_COMM_ACCEPT(PORT_NAME, INFO, ROOT, COMM, NEWCOMM, IERROR)
            CHARACTER*(*)  PORT_NAME
            INTEGER        INFO, ROOT, COMM, NEWCOMM, IERROR


C++ Syntax
       #include <mpi.h>
       MPI::Intercomm MPI::Intracomm::Accept(const char* port_name,
            const MPI::Info& info, int root) const


INPUT PARAMETERS
       port_name Port name (string, used only on root).

       info      Options given by root for the accept (handle, used only on root). No options currently sup-ported. supported.
                 ported.

       root      Rank in comm of root node (integer).

       comm      Intracommunicator over which call is collective (handle).


OUTPUT PARAMETERS
       newcomm   Intercommunicator with client as remote group (handle)

       IERROR    Fortran only: Error status (integer).


DESCRIPTION
       MPI_Comm_accept establishes communication with a client. It is collective over the calling communica-tor. communicator.
       tor.  It returns an intercommunicator that allows communication with the client, after the client has
       connected with the MPI_Comm_accept function using the MPI_Comm_connect function.

       The port_name must have been established through a call to MPI_Open_port on the root.



ERRORS
       Almost all MPI routines return an error value; C routines as the value of the  function  and  Fortran
       routines  in  the  last argument. C++ functions do not return errors. If the default error handler is
       set to MPI::ERRORS_THROW_EXCEPTIONS, then on error the C++ exception mechanism will be used to  throw
       an MPI:Exception object.

       Before  the  error value is returned, the current MPI error handler is called. By default, this error
       handler aborts the MPI job, except for I/O function errors. The error handler  may  be  changed  with
       MPI_Comm_set_errhandler;  the  predefined  error handler MPI_ERRORS_RETURN may be used to cause error
       values to be returned.

       See the MPI man page for a full list of MPI error codes.


SEE ALSO
       MPI_Comm_connect MPI_Open_port




Open MPI 1.2                                     March 2007                        MPI_Comm_accept(3OpenMPI)