Hi Jeff,
Thanks – I looked through quickly – there’s nothing outlandish it there, IMHO – seems sensible/modest.
Slide 9 question “both mpi.h and mpi_abi.h in same program?”
Do you mean “in the same translation unit” or “in different libraries linked together into a single binary” or something else?
I’m thinking that the World model encourages the user to pass a communicator from the place where MPI_INIT was called into each sub-program/library – there must be agreement between them on the type/value.
There are a bunch of what-if scenarios here: passing an MPI_Status from one place to another using a parameter/return value suggests your option 1 is the correct answer there (language copy would
work).
Best wishes,
Dan.
From: mpiwg-abi <mpiwg-abi-bounces@lists.mpi-forum.org>
On Behalf Of Jeff Hammond
Sent: 24 January 2023 15:01
To: mpiwg-abi@lists.mpi-forum.org
Subject: [mpiwg-abi] MPI-5 ABI proposal
As requested, I have made a concrete proposal for the MPI-5 ABI.
https://docs.google.com/presentation/d/1cU9ewMUa7w3eaRVtfzov8NinyjzNSp5nF_peT92SE8I/edit?usp=sharing
Request edit access if you want to paint the bike shed with me.