17.2.325. MPI_Session_get_pset_info
MPI_Session_get_pset_info - Returns an info object containing properties of a specific process set
17.2.325.1. Syntax
17.2.325.1.1. C Syntax
#include <mpi.h>
int MPI_Session_get_pset_info(MPI_Session session, const char *pset_name, MPI_Info *info)
17.2.325.1.2. Fortran Syntax
USE MPI
! or the older form: INCLUDE 'mpif.h'
MPI_SESSION_GET_PSET_INFO(SESSION, PSET_NAME, INFO, IERROR)
INTEGER SESSION, INFO, IERROR
CHARACTER*(*) PSET_NAME
17.2.325.1.3. Fortran 2008 Syntax
USE mpi_f08
MPI_Session_get_pset_info(session, pset_name, info, ierror)
TYPE(MPI_Session), INTENT(IN) :: session
CHARACTER(LEN=*), INTENT(IN) :: pset_name
TYPE(MPI_Info), INTENT(OUT) :: info
INTEGER, OPTIONAL, INTENT(OUT) :: ierror
17.2.325.2. Input Parameters
session : session (handle)
pset_name : name of process set (string)
17.2.325.3. Output Parameters
info: info object (handle)
IERROR : Fortran only: Error status (integer).
17.2.325.4. Description
MPI_Session_get_pset_info is used to query properties of a specific process set. The returned info object can be queried with existing MPI info object query functions. One key/value pair must be defined, “mpi_size”. The value of the “mpi_size” key specifies the number of MPI processes in the process set.
17.2.325.5. Notes
The user is responsible for freeing the returned info object via MPI_Info_free.
17.2.325.6. 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_Session_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