[Beowulf] single machine with 500 GB of RAM
Vincent Diepeveen
diep at xs4all.nl
Wed Jan 9 17:06:02 PST 2013
On Jan 10, 2013, at 1:47 AM, Ellis H. Wilson III wrote:
> [snip]
> My attention to them has revolved more around the latency issues that
> arise when you add a HW raid controller and the SATA protocol between
> the CPU and the SSD. This is exacerbated if the access patterns do
> not
> remain completely random but converge over the lifetime of the run
> -- in
> that case you may run into the accesses localizing onto a single
> SSD in
> the RAID array and bottlenecking performance towards the tail-end
> of the
> execution.
Ellis, ever heard of striping?
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