MPI_Open_port
short description
Synopsis
int MPI_Open_port(MPI_Info info, char *port_name)
Input Parameter
- info
- implementation-specific information on how to establish an
address (handle)
Output Parameter
- port_name
- newly established port (string)
Notes
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.
Reserved Info Key Values
- ip_port
- Value contains IP port number at which to establish a port.
- ip_address
- Value contains IP address at which to establish a port.
If the address is not a valid IP address of the host on which the
MPI_OPEN_PORT call is made, the results are undefined.
Notes for Fortran
All MPI routines in Fortran (except for MPI_WTIME and MPI_WTICK) have
an additional argument ierr at the end of the argument list. ierr
is an integer and has the same meaning as the return value of the routine
in C. In Fortran, MPI routines are subroutines, and are invoked with the
call statement.
All MPI objects (e.g., MPI_Datatype, MPI_Comm) are of type INTEGER
in Fortran.
Errors
All MPI routines (except MPI_Wtime and MPI_Wtick) return an error value;
C routines as the value of the function and Fortran routines in the last
argument. Before the value is returned, the current MPI error handler is
called. By default, this error handler aborts the MPI job. The error handler
may be changed with MPI_Comm_set_errhandler (for communicators),
MPI_File_set_errhandler (for files), and MPI_Win_set_errhandler (for
RMA windows). The MPI-1 routine MPI_Errhandler_set may be used but
its use is deprecatd. The predefined error handler
MPI_ERRORS_RETURN may be used to cause error values to be returned.
Note that MPI does not guarentee that an MPI program can continue past
an error; however, MPI implementations will attempt to continue whenever
possible.
- MPI_SUCCESS
- No error; MPI routine completed successfully.
Location:open_port.c