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MPI_Open_port.3.rst

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MPI_Open_port

:ref:`MPI_Open_port` - Establishes a network address for a server to accept connections from clients.

SYNTAX

C Syntax

#include <mpi.h>

int MPI_Open_port(MPI_Info info, char *port_name)

Fortran Syntax

USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_OPEN_PORT(INFO, PORT_NAME, IERROR)
     CHARACTER*(*)   PORT_NAME
     INTEGER         INFO, IERROR

Fortran 2008 Syntax

USE mpi_f08
MPI_Open_port(info, port_name, ierror)
     TYPE(MPI_Info), INTENT(IN) :: info
     CHARACTER(LEN=MPI_MAX_PORT_NAME), INTENT(OUT) :: port_name
     INTEGER, OPTIONAL, INTENT(OUT) :: ierror

INPUT PARAMETER

  • info: Options on how to establish an address (handle). No options currently supported.

OUTPUT PARAMETERS

  • port_name: Newly established port (string).
  • ierror: Fortran only: Error status (integer).

DESCRIPTION

:ref:`MPI_Open_port` establishes a network address, encoded in the port_name string, at which the server will be able to accept connections from clients. port_name is supplied by the system.

MPI copies a system-supplied port name into port_name. port_name identifies the newly opened port and can be used by a client to contact the server. The maximum size string that may be supplied by the system is MPI_MAX_PORT_NAME.

SUPPORTED INFO KEYS

None.

ERRORS

.. seealso::
   * :ref:`MPI_Comm_accept`
   * :ref:`MPI_Comm_connect`