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<p><span style="left: 120px; top: 1106.67px; font-size: 16.6667px;
font-family: serif; transform: scaleX(0.779216);"> "Many
employers look for people who studied humanities and learned </span><span
style="left: 120px; top: 1127.5px; font-size: 16.6667px;
font-family: serif; transform: scaleX(0.777874);">IT by
themselves, for their wider appreciation of human values."</span></p>
<p><span style="left: 120px; top: 1127.5px; font-size: 16.6667px;
font-family: serif; transform: scaleX(0.777874);">Mark Burgess</span></p>
<p><span style="left: 120px; top: 1127.5px; font-size: 16.6667px;
font-family: serif; transform: scaleX(0.777874);"><a class="moz-txt-link-freetext" href="https://www.usenix.org/sites/default/files/jesa_0201_issue.pdf">https://www.usenix.org/sites/default/files/jesa_0201_issue.pdf</a><br>
</span></p>
<div class="moz-cite-prefix">On 2/23/19 4:30 PM, Will Dennis wrote:<br>
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<p class="MsoNormal">Hi folks,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I thought I’d give a brief introduction,
and see if this list is a good fit for my questions that I
have about my HPC-“ish” infrastructure...<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I am a ~30yr sysadmin (“jack-of-all-trades”
type), completely self-taught (B.A. is in English, that’s why
I’m a sysadmin :-P) and have ended up working at an industrial
research lab for a large multi-national IT company (<a
href="http://www.nec-labs.com" moz-do-not-send="true">http://www.nec-labs.com</a>).
In our lab we have many research groups (as detailed on the
aforementioned website) and a few of them are now using “HPC”
technologies like Slurm, and I’ve become the lead admin for
these groups. Having no prior background in this realm, I’m
learning as fast as I can go :) <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Our “clusters” are collections of 5-30
servers, all collections bought over years and therefore
heterogeneous hardware, all with locally-installed OS (i.e.
not trad head-node with PXE-booted diskless minions) which is
as carefully controlled as I can make it via standard OS
install via Cobbler templates, and then further configured via
config management (we use Ansible.) Networking is basic 10GbE
between nodes (we do have Infiniband availability on one
cluster, but it’s fell into disuse now since the project that
has required it has ended.) Storage is one or more traditional
NFS servers (some use ZFS, some not.) We have within the past
few years adopted Slurm WLM for a job-scheduling system on top
of these collections, and now are up to three different Slurm
clusters, with I believe a fourth on the way.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">My first question for this list is
basically “do I belong here?” I feel there’s a lot of HPC
concepts it would be good for me to learn, so as I can improve
the various research group’s computing environments, but not
sure if this list is for much larger “true HPC” environments,
or would be a good fit for a “HPC n00b” like me...<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks for reading, and let me know your
opinions :)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Best,<o:p></o:p></p>
<p class="MsoNormal">Will<o:p></o:p></p>
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