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INTRODUCTION
As a long-time computer programmer and almost as long a High-Performance Computer (HPC) user, I really didn’t know anything about how these machines actually worked under the hood. I still really don’t, so a few years ago when I was working at one of the US National Labs, I decided that a fun project to learn this would be to build my own raspberry pi cluster. Well, life got in the way and I started getting parts for it and never got around to doing it.
Last year, my employer spent millions of dollars on a whole new set of HPC’s and up to now, we’ve not gotten the bang for the buck we had anticipated because to get them up in the hands of the working engineers, we broke some of them apart into their constituent pieces and mimicked the machines we already had on hand. This is all well and good, but we have machines with 2000 nodes that we would like to set up and use on CFD...
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