[Beowulf] More about those underwater data centers

Stu Midgley sdm900 at gmail.com
Mon Nov 5 15:30:49 PST 2018

I refute both these claims.

You DO want to run your boards immersed in coolant.  It works wonderfully
well, is easy to live with, servicing is easy... and saves you almost 1/2
your power bill.

People are scared of immersion cooling, but it isn't that difficult to live
with.  Some things are harder but other things are way easier.  In total,
it balances out.

Also, given the greater reliability of components you get, you do less

If you haven't lived with it, you really have no idea what you are missing.

Serviceability is NOT challenging.

You really do NOT want to run boards immersed in coolant - yeah, there's
> folks doing it at HPC scale
> Whatever the coolant, it leaks, it oozes, it gets places you don't want it
> to go. And serviceability is challenging. You need to pull the "wet" boards
> out, or you need to connect and disconnect fluid connectors, etc.  If
> you're in an environment where you can manage that (or are forced into it
> by necessity), then you can do it.
Dr Stuart Midgley
sdm900 at gmail.com
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