MPI_Comm_remote_group - Online Linux Manual PageSection : 3
Updated : Jan 21, 2016
Source : 1.10.2
Note : Open MPI

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NAMEMPI_Comm_remote_group − Accesses the remote group associated with an intercommunicator.

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SYNTAX

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C Syntax#include <mpi.h> int MPI_Comm_remote_group(MPI_Comm comm, MPI_Group *group)

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Fortran SyntaxINCLUDE 'mpif.h' MPI_COMM_REMOTE_GROUP(COMM, GROUP, IERROR) INTEGER COMM, GROUP, IERROR

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C++ Syntax#include <mpi.h> Group Intercomm::Get_remote_group() const

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INPUT PARAMETERcomm  Communicator.

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OUTPUT PARAMETERSgroup  Remote group of communicator. IERROR  Fortran only: Error status (integer).

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DESCRIPTIONMPI_Comm_remote_group accesses 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.

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ERRORSAlmost 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.

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SEE ALSOMPI_Comm_test_inter MPI_Comm_remote_size MPI_Intercomm_create MPI_Intercomm_merge 0

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