[Beowulf] interesting article on HPC vs evolution of 'big data' analysis

[James Cownie]

> Please, be faithful on your citations,
> and don't distort what others post on the list,

Sorry, it was unintentional. I will try to be more careful in the future.
(Though you have granted me an un-earned doctorate too :-))

-- Jim
James Cownie <jcownie at gmail.com>
Mob: +44 780 637 7146
http://skiingjim.blogspot.com/




On 9 Apr 2015, at 20:01, Gus Correa <gus at ldeo.columbia.edu> wrote:

> 
> 
> On 04/09/2015 02:20 PM, James Cownie wrote:
>>> 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 <jcownie at gmail.com <mailto:jcownie at gmail.com>>
>> Mob: +44 780 637 7146
>> http://skiingjim.blogspot.com/
>> 
>> 
> 
> Dr. Cownie
> 
> You edited, and distorted what I wrote.
> It said *Fortran* (NOT MPI !) outlived its creators.
> I certainly didn't mean to kill prematurely
> the MPI designers and developers either.
> 
> Here is what I wrote:
> 
> > 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.
> 
> Please, be faithful on your citations,
> and don't distort what others post on the list,
> even if it is just to make fun.
> 
> Thank you,
> Gus Correa
> 
> 
> 
>> 
>> 
>> On 8 Apr 2015, at 22:12, Gus Correa <gus at ldeo.columbia.edu
>> <mailto:gus at 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.bisbal at rutgers.edu <mailto:prentice.bisbal at rutgers.edu>
>>>> <mailto:prentice.bisbal at 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/>
>>>> 
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>>>> 
>>>> 
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