In article
<69dfeea8-c8be-41df-b39c-11ef600a19b6@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>,
Rex Ballard <rex.ballard@xxxxxxxxx> wrote:
> It's a bit ironic. Linux runs in some of the smallest computers,
> including the OLPC, but it also runs in over 86% of the largest
> computers as well.
>
> That's some pretty heavy duty scalability and performance, as well as
> some outstanding reliability.
Take a look at how most supercomputer architectures work. They don't
require or depend on scalability of the main OS. Most of the
supercomputers nowadays (including most on that list) are clusters.
That OS doesn't need to be scalable past the number of processors that
run on a single node. (If the main OS even runs on the nodes...some use
a general purpose OS like Linux on a controlling node, and then a
greatly simplified OS, maybe derived from Linux, running on the compute
nodes).
--
--Tim Smith
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