MPI_Comm_get_info - Retrieves active communicator info hints

NAME  SYNTAX  C Syntax  Fortran Syntax  Fortran 2008 Syntax  INPUT PARAMETERS  OUTPUT PARAMETERS  DESCRIPTION  ERRORS  SEE ALSO 

NAME

MPI_Comm_get_info − Retrieves active communicator info hints

SYNTAX

C Syntax

#include <mpi.h>
int MPI_Comm_get_info(MPI_Comm comm, MPI_Info *info_used)

Fortran Syntax

USE MPI
! or the older form: INCLUDE ’mpif.h’
MPI_COMM_GET_INFO(COMM, INFO_USED, IERROR)

INTEGER

COMM, INFO_USED, IERROR

Fortran 2008 Syntax

USE mpi_f08
MPI_Comm_get_info(comm, info_used, ierror)

TYPE(MPI_Comm), INTENT(IN) :: comm

TYPE(MPI_Info), INTENT(OUT) :: info_used

INTEGER, OPTIONAL, INTENT(OUT) :: ierror

INPUT PARAMETERS

comm

Communicator from which to receive active info hints

OUTPUT PARAMETERS

info_used

New info object returned with all active hints on this communicator.

IERROR

Fortran only: Error status (integer).

DESCRIPTION

MPI_Comm_get_info returns a new info object containing the hints of the communicator associated with comm. The current setting of all hints actually used by the system related to this communicator is returned in info_used. If no such hints exist, a handle to a newly created info object is returned that contains no key/value pair. The user is responsible for freeing info_used via MPI_Info_free.

ERRORS

Almost all MPI routines return an error value; C routines as the value of the function and Fortran routines in the last argument.

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.

SEE ALSO

MPI_Comm_get_info, MPI_Info_free


Updated 2024-01-29 - jenkler.se | uex.se