[Mpi3-ft] Ticket #307: Behavior of MPI_INIT after failure to initialize

[Wesley Bland]

After some offline discussion, Aurelien and I think that we should probably keep the text as is. It will be more backward compatible and provides the best guidance for MPI_INIT behavior. This ticket can probably go.

On May 8, 2013, at 10:23 AM, Richard Graham <richardg at mellanox.com> wrote:

> I do not thing there was any conclusion here - this is even true when one is not worrying about FT.  What do you do when mpirun does not give you the number of process you asked for ?  Before MPI_INIT we are not guaranteed to have more than a single "process".
> 
> Rich
> 
> -----Original Message-----
> From: mpi3-ft-bounces at lists.mpi-forum.org [mailto:mpi3-ft-bounces at lists.mpi-forum.org] On Behalf Of Wesley Bland
> Sent: Wednesday, May 08, 2013 11:18 AM
> To: MPI 3.0 Fault Tolerance and Dynamic Process Control working Group
> Subject: Re: [Mpi3-ft] Ticket #307: Behavior of MPI_INIT after failure to initialize
> 
> Is there anything else from this ticket that we would find useful before killing it? For example, all of the text we have about MPI_INIT in ULFM is in an advice to implementors. Should we move anything to normative text?
> 
> On May 8, 2013, at 10:06 AM, Aurélien Bouteiller <bouteill at icl.utk.edu> wrote:
> 
>> My memory is that this ticket has been combined, upgraded and included into ULFM. 
>> 
>> 
>> Le 7 mai 2013 à 17:40, Wesley Bland <wbland at mcs.anl.gov> a écrit :
>> 
>>> author: jjhursey
>>> 
>>> https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/307
>>> 
>>> This ticket specifies the behavior of the MPI library after a during MPI_INIT. Basically, if there is a failure during INIT, the library should return an appropriate return code and calling any other MPI function (with a few exceptions) is erroneous and will trigger the error handler for MPI_COMM_WORLD, which by default is MPI_ERRORS_ARE_FATAL and cannot be changed in this instance.
>>> 
>>> Again, this ticket has no discussion attached to it. I remember some discussions from the RTS proposal days, but I don't remember the results of any of those discussions. Can anyone else bring this back to light?
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>> 
>> --
>> * Dr. Aurélien Bouteiller
>> * Researcher at Innovative Computing Laboratory
>> * University of Tennessee
>> * 1122 Volunteer Boulevard, suite 309b
>> * Knoxville, TN 37996
>> * 865 974 9375
>> 
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