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MPI_Comm_remote_size - Determines the size of the remote group
associated with an intercommunicator.
#include <mpi.h>
int MPI_Comm_remote_size(MPI_Comm comm, int *size)
USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_COMM_REMOTE_SIZE(COMM, SIZE, IERROR)
INTEGER COMM, SIZE, IERROR
USE mpi_f08
MPI_Comm_remote_size(comm, size, ierror)
TYPE(MPI_Comm), INTENT(IN) :: comm
INTEGER, INTENT(OUT) :: size
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
- comm
- Communicator (handle).
- size
- Number
of processes in the remote group of comm (integer).
- IERROR
- Fortran only:
Error status (integer).
MPI_Comm_remote_size determines the
size of the remote group associated with an intercommunicator.
The intercommunicator
accessors (MPI_Comm_test_inter, MPI_Comm_remote_size, MPI_Comm_remote_group)
are all local operations.
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. Note that MPI does not guarantee that an MPI program can continue
past an error.
MPI_Comm_test_inter
MPI_Comm_remote_group
MPI_Intercomm_create
MPI_Intercomm_merge
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