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<p>People,</p>
<p><br>
</p>
<p>I got some clarification from Bryan on the meaning of the farm OS
tags. Here is his explanation:</p>
<p><br>
</p>
<p>""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""<br>
</p>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
Auger jobs that are submitted without an OS tag at all now default
to CentOS7.7. We didn't change the meaning of the tags:</div>
<div style="font-family: Calibri, Arial, Helvetica, sans-serif;
font-size: 12pt; color: rgb(0, 0, 0);">
<br>
</div>
<ul>
<li>centos7 - deprecated; points to CentOS7.2; will go away with
CentOS 7.2</li>
<li>centos72 - centos72 nodes only</li>
<li>centos77 - centos77 nodes only</li>
<li>general - OS agnostic; schedule jobs on any OS. This lets jobs
that can run on any CentOS flavor consume whatever is free. </li>
</ul>
<div>We also added a tag for "amd" and "xeon" in case you have code
optimized for a particular chip.</div>
<div>""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""<br>
</div>
<div><br>
</div>
<div>Note that this falsifies the last paragraph in my previous
email (below). So please ignore that. At least I added heavy
qualifiers... ;-)<br>
</div>
<div><br>
</div>
<div> -- Mark<br>
</div>
<p><br>
</p>
<div class="moz-cite-prefix">On 1/22/20 11:09 AM, Mark Ito wrote:<br>
</div>
<blockquote type="cite"
cite="mid:590846e6-4e7e-b1a0-be37-0f32853ccbcc@jlab.org">
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<p>Folks,</p>
<p><br>
</p>
<p>Note the item quoted below from Bryan last Thursday. This means
that when you log into ifarm today, you are logging into a
different OS than you had when you logged in yesterday. Our
software packages need to distinguish between code built on
CentOS 7.2 vs. that built on CentOS 7.7. That means stuff you
compiled yesterday is not suitable for jobs you are running
today. On ifarm, you need to recompile everything that you
compile yourself.</p>
<p><br>
</p>
<p>Bryan also mentioned:</p>
<p><br>
</p>
<p><span style="color: rgb(0, 0, 0); font-family: Calibri, Arial,
Helvetica, sans-serif; font-size: 12pt;">> Auger jobs
submitted after Tuesday morning, January 21st will default to
CentOS 7.7. <br>
</span></p>
<p><span style="color: rgb(0, 0, 0); font-family: Calibri, Arial,
Helvetica, sans-serif; font-size: 12pt;"><br>
</span></p>
<p>I think that means that batch farm default for CENTOS7 nodes
changed its default. [Someone should correct me here if that is
incorrect.] Assuming I am right about that, if you choose
vanilla CENTOS7 in your farm jobs, and it worked yesterday, it
might not today if it depends on code you compile yourself, for
reasons similar to those described above.<br>
</p>
<p><br>
</p>
<p> -- Mark</p>
<p><br>
</p>
<div class="moz-cite-prefix">On 1/16/2020 9:33 AM, Bryan Hess
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CH2PR09MB4038FC7C1851E7E3790BBCCAC4370@CH2PR09MB4038.namprd09.prod.outlook.com">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;}</style>
<div style=""><font face="Arial, Helvetica, sans-serif"
color="#000000"><span style="font-size: 14pt;"><b>Interactive
Farm Upgrade to CentOS 7.7</b></span></font></div>
<div style=""><font face="Arial, Helvetica, sans-serif"
color="#000000"><span style="font-size: 12pt;"><br>
</span></font></div>
<div style=""><font face="Arial, Helvetica, sans-serif"
color="#000000"><span style="font-size: 12pt;">On Tuesday,
January 21st the <i style="font-weight: bold;">ifarm.jlab.org</i> alias
will be pointed to CentOS 7.7 hosts only. ifarm1801 will
be upgraded to CentOS 7.7. After that change, the
interactive farm will consist of ifarm1801 and ifarm1802
running Intel Skylake processors, and ifarm1901 run AMD
Epyc "Rome" processors. The older ifarm1401 and ifarm1402
systems will remain at CentOS 7.2 until the farm is
completely transitioned, at which point they will be
retired. </span></font></div>
<div style=""><br>
</div>
<div style=""><br>
</div>
<div style=""><font face="Arial, Helvetica, sans-serif"
color="#000000"><span style="font-size: 12pt;">--Bryan</span></font></div>
<div style=""><font face="Arial, Helvetica, sans-serif"
color="#000000"><span style="font-size: 12pt;"><br>
</span></font></div>
<div style=""><font face="Arial, Helvetica, sans-serif"
color="#000000"><span style="font-size: 12pt;"><br>
</span></font></div>
<br>
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