[mpi3-ft] FW: Starting slides for 2/1/2008 telecon

[Richard Graham]

On 1/30/08 3:17 AM, "Greg Bronevetsky" <bronevetsky1 at llnl.gov> wrote:

> Two comments:
> 
> We may want to add the capability to spawn new processes and give
> them the ranks of the failed processes. This is more efficient than
> pre-allocating enough spare processes as part of the original job
> allocation, so it might be a good idea to include in the spec.
> 
>>> >> At this stage no solutions are being proposed.  We need to figure out >>>
what
>>> >> sort of scenarios we aim to provide assistance for, before we start
>>> proposing
>>> >> solutions, or even considering API¹s
> 
> I disagree with the comments about MPI quieting the communication
> system because this presumes that the application will use the
> trivial sync-and-stop CPR protocol. They may the case but we
> shouldn't write this assumption into the spec. We should probably
> restrict ourselves to only saying that no message may get partially
> delivered since such messages would be very hard to deal with above
> the MPI library.
> 
>>> >> What is listed are things that people do NOW.  This will obviously
>>> include
>>> >> things that you agree with, and things you disagree with, and is only the
>>> >> starting point for discussion.  The fact that I listed these, does not
>>> mean
>>> >> that I agree with them, it just means that this is part of the state of
>>> the
>>> >> art.
> 
> Rich
> 
> Greg Bronevetsky
> Post-Doctoral Researcher
> 1028 Building 451
> Lawrence Livermore National Lab
> (925) 424-5756
> bronevetsky1 at llnl.gov
> 
> At 10:12 AM 1/29/2008, Richard Graham wrote:
>> >This did not seem to make it through the first time, so let me try again.
>> >
>> >Rich
>> >
>> >------ Forwarded Message
>> >From: Richard Graham <rlgraham at ornl.gov>
>> >Date: Tue, 29 Jan 2008 10:55:11 -0500
>> >To: Discussion of MPI 3 Fault Tolerance Support <mpi3-ft at cs.uiuc.edu>
>> >Conversation: Starting slides for 2/1/2008 telecon
>> >Subject: Starting slides for 2/1/2008 telecon
>> >
>> >Attached is a set of slides I intend to use as a staring point for the
>> >telecon this coming Friday.  If you are planning on attending, please take a
>> >look at these, and see what is missing.  The main goal for this call is to
>> >help set the scope of the problem for which we intend to propose changes to
>> >the MPI standard.
>> >
>> >Thanks,
>> >Rich
>> >
>> >------ End of Forwarded Message
>> >
>> >
>> >
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