NAME¶
MPI_Comm_accept - Establishes communication with a client.
SYNTAX¶
C Syntax¶
#include <mpi.h>
int MPI_Comm_accept(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
- 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