MPI_Info_get_nkeys (3)
Returns the number of currently defined keys in info
SYNOPSIS
int MPI_Info_get_nkeys(MPI_Info info, int *nkeys)
INPUT PARAMETERS
OUTPUT PARAMETERS
nkeys
- number of defined keys (integer)
NOTES FOR FORTRAN
All MPI routines in Fortran (except for 'MPI_WTIME' and 'MPI_WTICK')
have an additional argument 'ierr' at the end of the argument list.
'ierr' is an integer and has the same meaning as the return value of
the routine in C. In Fortran, MPI routines are subroutines and are
invoked with the 'call' statement.
All MPI objects (e.g., 'MPI_Datatype', 'MPI_Comm', 'MPI_File') are of
type 'INTEGER' in Fortran.
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