On Jul 18, 2008, at 2:21 PM, William Gropp wrote:
It might be a whole lot simpler to specifically define which
predefined handles need to be available in each language.� The
spectrum ranges from "all languages' predefined handles must be
available in every language" to "only that language A's predefined
handles must be available in language A".� Suggestions?
I'm in favor of explicitly specifying the values and names (because
of the need to use alternate names when their might be a conflict,
as in the MPI::F_COMPLEX case), and that these have the exact same
value as if the handle transfer function was used.
Do we really need to mandate that they have the same value, or just
exhibit the same behavior?� Specifically does it matter if this code
hits branch A or B?
�� � MPI_Fint ftype;
�� � ftype = MPI_Type_c2f(MPI_INT);
�� � if (MPI_INT == MPI_Type_f2c(ftype)) {
�� � � � //branch A
�� � } else {
�� � � � //branch B
�� � }
Or is it simpler to say that the return from an operation like the
above must behave exactly like the original, regardless of value?
--
Jeff Squyres
Cisco Systems
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