[Beowulf] China Wrests Supercomputer Title From U.S.
gus at ldeo.columbia.edu
Thu Oct 28 11:57:51 EDT 2010
Hi Bill, list
Here is it from The Register:
Which real real production applications ran on Jaguar across all processors?
I heard of large high-resolution climate models that ran on Jaguar
and on Kraken, using about 6000 cores, but not the full set available.
There certainly are other large applications, though.
Bill Rankin wrote:
> I was just going to post the same thing, but with the HPCWire link instead.
> A few comments:
> A 42% increase (2.5TF v. 1.75TF for jaguar) is not a "wide margin".
If I did my math right, that represents about 7 months
worth of gain on the growth curve for the Top500 list
(peak performance growth is ~2x every 13 months).
> Linpack is very forgiving of low-bandwidth networks
(or PCI-x busses in this case).
> This strikes me as a machine that will most likely
never see a single application that runs on the full system.
There is nothing wrong with that per-se, but it must be taken
into consideration when comparing it to machines that have run
real production applications across the entire processor set (ie. Jaguar).
> What this machine does do is validate to some extent the
continued use and development of GPUs in an HPC/cluster setting.
I will admit that I have been very skeptic in the past as to whether
GPU-based computing had any long-term traction.
In my defense I have seen many past examples of
specialized computing approaches that did not
survive past the first generation and eventually
lost out to the general purpose microprocessor.
I will now admit that GPU technology may have a bigger
long-term impact that I had originally imagined.
>> Prentice Bisbal
>> Linux Software Support Specialist/System Administrator
>> School of Natural Sciences
>> Institute for Advanced Study
>> Princeton, NJ
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