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Man Pages


Manual Reference Pages  -  MPI_COMM_ACCEPT (3)

NAME

MPI_Comm_accept - Establishes communication with a client.

CONTENTS

Syntax
C Syntax
Fortran Syntax
C++ Syntax
Input Parameters
Output Parameters
Description
Errors
See Also

SYNTAX

C Syntax

#include <mpi.h>
int MPI_Comm_accept(const 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 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_accept establishes communication with a client. It is collective over the calling communicator. 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

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1.10.2 MPI_COMM_ACCEPT (3OpenMPI) Jan 21, 2016

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