MPI_Comm_accept − Establishes communication with a client.
#include
<mpi.h>
int MPI_Comm_accept(const char *port_name, MPI_Info
info, int root, MPI_Comm comm, MPI_Comm
*newcomm)
USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_COMM_ACCEPT(PORT_NAME, INFO, ROOT, COMM, NEWCOMM,
IERROR)
CHARACTER*(*) |
PORT_NAME | ||||
INTEGER |
INFO, ROOT, COMM, NEWCOMM, IERROR |
USE mpi_f08
MPI_Comm_accept(port_name, info, root,
comm, newcomm, ierror)
CHARACTER(LEN=*), INTENT(IN) :: port_name | |
TYPE(MPI_Info), INTENT(IN) :: info | |
INTEGER, INTENT(IN) :: root | |
TYPE(MPI_Comm), INTENT(IN) :: comm | |
TYPE(MPI_Comm), INTENT(OUT) :: newcomm | |
INTEGER, OPTIONAL, INTENT(OUT) :: ierror |
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). |
newcomm |
Intercommunicator with client as remote group (handle) |
|||
IERROR |
Fortran only: Error status (integer). |
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.
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.
MPI_Comm_connect MPI_Open_port