[MPI3 Fortran] Agenda for MPI3 Fortran Working group next week

Bill Long longb at cray.com
Thu Jun 4 12:22:28 CDT 2009

Jeff Squyres wrote:
> On Jun 4, 2009, at 12:59 PM, N.M. Maclaren wrote:
>> >One of the decisions the MPI group needs to make is whether using an 
>> MPI
>> >module is required for the new interface.   If the answer is no, then
>> >the space of options is reduced quite a bit.  I don't get a vote, 
>> but if
>> >I did, I would favor a requirement that any program unit that uses MPI
>> >facilities has access to the MPI module.
>> I don't, either, and I quite agree.
> I'd guess that we're fine with a module (can't speak for everyone, of 
> course, but the temperature had been fairly favorable to a module in 
> prior meetings).
> We already have "use mpi"; I think that it's an open question as to 
> whether this will be "use mpi3" (or some other name) for the new 
> interface.  I'm thinking that it'll have to be something new (e.g., 
> "mpi3") because we want to change some of the existing interfaces.
> I think this is something we need to talk about in Menlo Park next week:
> - what to do with mpif.h (I think we should deprecate it -- MPI 
> implementations can choose to keep supporting it for legacy 
> apps/customers, of course)

Or, perhaps, specify an mpif.h for MPI 3 that is empty except for some 
Comment lines that remind the reader about accessing the MPI3 module.


> - what to do with "use mpi" (deprecate?)
> - what to do with this new interface ("use mpi3"?)

Bill Long                                   longb at cray.com
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