MPI_Open_port(3) Open MPI MPI_Open_port(3)
NAME
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
C++ Syntax
#include <mpi.h>
void MPI::Open_port(const MPI::Info& info, char* port_name)
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
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 iden-
tifies 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
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 ALSO
MPI_Comm_accept MPI_Comm_connect
4.1.2 Nov 24, 2021 MPI_Open_port(3)
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