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mpi_comm_connect(3openmpi) [osx man page]

MPI_Comm_connect(3OpenMPI)												MPI_Comm_connect(3OpenMPI)

NAME

       MPI_Comm_connect  - Establishes communication with a server.

SYNTAX

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

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_COMM_CONNECT(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::Connect(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 connect (handle, used only on root). No options currently supported.

       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_connect establishes communication with a server specified by port_name. It is collective over the calling communicator and returns
       an intercommunicator in which the remote group participated in an MPI_Comm_accept. The MPI_Comm_connect call must only be called after  the
       MPI_Comm_accept call has been made by the MPI job acting as the server.

       If the named port does not exist (or has been closed), MPI_Comm_connect raises an error of class MPI_ERR_PORT.

       MPI  provides  no guarantee of fairness in servicing connection attempts. That is, connection attempts are not necessarily satisfied in the
       order in which they were initiated, and competition from other connection attempts may prevent a particular connection attempt  from  being
       satisfied.

       The port_name parameter is the address of the server. It must be the same as the name returned by MPI_Open_port on the server.

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++ func-
       tions 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. Note that MPI does not guarantee that an MPI program can continue past an error.

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

SEE ALSO

       MPI_Comm_accept MPI_Open_port

Open MPI 1.2							    March 2007						MPI_Comm_connect(3OpenMPI)

Check Out this Related Man Page

MPI_Lookup_name(3OpenMPI)												 MPI_Lookup_name(3OpenMPI)

NAME

       MPI_Lookup_name - Finds port associated with a service name

SYNTAX

C Syntax
       #include <mpi.h>
       int MPI_Lookup_name(char *service_name, MPI_Info info,
	    char *port_name)

Fortran Syntax
       INCLUDE 'mpif.h'
       MPI_LOOKUP_NAME(SERVICE_NAME, INFO, PORT_NAME, IERROR)
	    CHARACTER*(*)  SERVICE_NAME, PORT_NAME
	    INTEGER	   INFO, IERROR

C++ Syntax
       #include <mpi.h>
       void MPI::Lookup_name(const char *service_name, const MPI::Info& info,
	    char* port_name)

INPUT PARAMETERS

       service_name  A service name (string).

       info	     Options to the name service functions (handle). No options currently supported.

OUTPUT PARAMETERS

       port_name     a port name (string).

       IERROR	     Fortran only: Error status (integer).

DESCRIPTION

       This  function retrieves a port_name published under service_name by a previous invocation of MPI_Publish_name. The application must supply
       a port_name buffer large enough to hold the largest possible port name (i.e., MPI_MAX_PORT_NAME bytes).

       The info parameter should be MPI_INFO_NULL, as this routine does not parse any MPI Info arguments.

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++ func-
       tions  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. Note that MPI does not guarantee that an MPI program can continue past an error.

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

SEE ALSO

       MPI_Publish_name
       MPI_Open_port

Open MPI 1.2							    March 2007						 MPI_Lookup_name(3OpenMPI)
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