[Mpi3-abi] Fwd: questions to drive the telecon

[Erez Haba]

Thanks Jeff, these are very good questions!!

I would start by us defining the "user" terminology, to put us on the same page.

e.g., the user is it the developer using MPI (aka ISV) is it the end-user running the application... etc.

Thanks,
.Erez

-----Original Message-----
From: mpi3-abi-bounces_at_[hidden] [mailto:mpi3-abi-bounces_at_[hidden]] On Behalf Of Jeff Brown
Sent: Thursday, February 21, 2008 8:37 AM
To: mpi3-abi_at_[hidden]
Subject: [Mpi3-abi] Fwd: questions to drive the telecon

all,

I put together some questions/comments that can help drive the
telecon this morning.

Jeff

>ABI WG telecon agenga/notes/questions
>
>- what is the motivation for this effort?
>   ISVs cannot distribute a single binary that includes MPI code
>   - must have either a translation layer or separate binaries for
> each mpi implementation (and compiler?)
>   sites must maintain a separate "module" for every compiler/mpi
> combination on the system
>   users must recompile for every compiler/mpi combination
>
>- what are we trying to accomplish?
>   app compiled with a "standard" mpi.h/mpif.h is compatible with
> standard compliant mpi implementations compiled on that same platform
>   this would allow for run-time dynamic linking
>   does not address items external to the binary such as environment
> variables and command line arguments
>
>- what do we mean by an "ABI"
>
>- comments on a translation layer
>   may be somewhat viable for an ISV, but not acceptable for a user site
>   just another layer of software to maintain
>   may or may not track what we have on site
>
>- what work is involved?
>   "standard" mpi.h
>   anything else?
>
>- how do we integrate into the standard?
>
>- what is the process to extend "standard" mpi.h content?
>
>- what's the proposal process?
>
>- what do we present at the March meeting?
>
>

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