> MPI continues to hang on, outlived its creators, As someone who was a subcommittee chair on MPI-1, it needs to go on a while yet to outlive me (I hope!)
-- Jim James Cownie <jcow...@gmail.com> Mob: +44 780 637 7146 http://skiingjim.blogspot.com/ On 8 Apr 2015, at 22:12, Gus Correa <g...@ldeo.columbia.edu> wrote: > For those old enough to have heard somebody as great as > John Lennon sing that "the dream is over", > and rather mediocre "philosophers" claim the "end of history", prophecies > that were never confirmed, > reading bombastic claims that MPI is dead is not so unsettling. > After all, reports of the death of Fortran, like Mark Twain's death, > have been greatly exaggerated. > It continues to hang on, outlived his creators, > and shows no sign of dying anytime soon. > > Is Exascale really needed? > If so, would the hardware paradigm have to change also perhaps? > (Good scaling properties and reliability are problems not only for > software, are they?) > Why can't MPI adapt to the new scenario? > > Gus Correa > > On 04/08/2015 03:57 PM, Scott Atchley wrote: >> There is concern by some and outright declaration by others (including >> hardware vendors) that MPI will not scale to exascale due to issues like >> rank state growing too large for 10-100 million endpoints, lack of >> reliability, etc. Those that make this claim then offer up their >> favorite solution (a PGAS variant, Chapel, Legion, Open Community >> Runtime). Several assert that the event-driven/task-driven runtimes will >> take care of data partitioning, data movement, etc. and that the user >> only has to define relationships and dependencies while exposing as much >> parallelism as possible. >> >> The domain scientists shudder at the thought of rewriting existing >> codes, some of which have existed for decades. If they do get funding to >> rewrite, which new programming model should they pick? At this point, >> there is no clear favorite. >> >> >> >> On Wed, Apr 8, 2015 at 2:31 PM, Prentice Bisbal >> <prentice.bis...@rutgers.edu <mailto:prentice.bis...@rutgers.edu>> wrote: >> >> I got annoyed by this article and had to stop reading it. I'll go >> back later and try to give it a proper critique, but obviously >> disagree with most of what I've read so far. Right of the bat, the >> author implies that Big Data = HPC, and I disagree with that. >> >> More ranting to come.... >> >> Prentice >> >> >> On 04/08/2015 01:16 PM, H. Vidal, Jr. wrote: >> >> Curious as to what the body of thought is here on this article: >> >> http://www.dursi.ca/hpc-is-__dying-and-mpi-is-killing-it/ >> <http://www.dursi.ca/hpc-is-dying-and-mpi-is-killing-it/> >> >> _________________________________________________ >> Beowulf mailing list, Beowulf@beowulf.org >> <mailto:Beowulf@beowulf.org> sponsored by Penguin Computing >> To change your subscription (digest mode or unsubscribe) visit >> http://www.beowulf.org/__mailman/listinfo/beowulf >> <http://www.beowulf.org/mailman/listinfo/beowulf> >> >> >> _________________________________________________ >> Beowulf mailing list, Beowulf@beowulf.org >> <mailto:Beowulf@beowulf.org> sponsored by Penguin Computing >> To change your subscription (digest mode or unsubscribe) visit >> http://www.beowulf.org/__mailman/listinfo/beowulf >> <http://www.beowulf.org/mailman/listinfo/beowulf> >> >> >> >> >> _______________________________________________ >> Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing >> To change your subscription (digest mode or unsubscribe) visit >> http://www.beowulf.org/mailman/listinfo/beowulf >> > > _______________________________________________ > Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing > To change your subscription (digest mode or unsubscribe) visit > http://www.beowulf.org/mailman/listinfo/beowulf
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