Clusters (was CLUG meeting 23 May 2002)
ianmcc at lorentz.leidenuniv.nl
Thu May 23 01:53:51 EST 2002
On Wed, 22 May 2002, Richard Cottrill wrote:
> Can anyone give me a concise description of what 'grid computing' means?
> From what I can tell it's essentially a different name for a beowolf
> cluster... I think there's supposed to be something about the nodes not
> being dedicated cluster machines in there too.
The idea behind the grid is complex, but the practical stuff is really
protocols for single-sign-on, data management etc. The idea is that you
submit your huge numerical simulation to the 'grid', and it then executes
on whatever compatible hardware it can find, a 'collectivization' of
all computing resources + data storage (ultimately, it would be literally
s/internet/grid/g). In part, its also a free and (hopefully) properly
designed+implemented version of M$ Passport etc, aimed currently at users
of high performance computers. There is also a grid implementation of MPI
(message passing interface) for running parallel programs on a network of
non-homogeneous architecture. http://www.globus.org/ is where much of
this stuff is happening. I don't know specifically what you refer to with
the comparison to a beowulf, I wouldn't be at all surprised if there is a
grid-ified version. Do you have any links?
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