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<div dir="ltr" data-setdir="false" style=""><font size="3">The Idaho National Laboratory has been the proving ground for several experiments in nuclear reactor design, some of which involved people from Argonne National Laboratory, outside of Chicago. </font></div><div dir="ltr" data-setdir="false" style=""><font size="3"><br></font></div><div dir="ltr" data-setdir="false" style=""><font size="3">My Dad worked at Argonne as a "Senior Chemist", though most of his work was in physics (dimensional changes in materials when exposed to nuclear radiation). A lot of his work involved counting interference fringes as a way of getting very precise measurements of dimensional changes. </font></div><div dir="ltr" data-setdir="false" style=""><font size="3"><br></font></div><div dir="ltr" data-setdir="false" style=""><font size="3">In one memorable test, the Idaho Lab ran a nuclear reactor of a design similar to the Westinghouse reactors with diminishing amounts of coolant, until there was almost no coolant remaining. Unlike Chernobyl (which had graphite-based moderation and a cooling system with a <span>"positive void coefficient"</span>) this reactor spewed many gallons of somewhat radioactive water out over the Idaho desert. No threat to anyone from the amounts of residual radiation, but you would not want to be in the direct path of it. </font></div><div dir="ltr" data-setdir="false" style=""><font size="3"><br></font></div><div dir="ltr" data-setdir="false" style=""><font size="3">I will be looking forward to attending the meeting where Dr. <span>Griffith will present. </span></font></div><div style=""><font size="3"><br></font></div><div dir="ltr" data-setdir="false" style=""><font size="3">-- Bob Primak </font></div><div dir="ltr" data-setdir="false" style=""><font size="3"><br></font></div><div dir="ltr" data-setdir="false" style="font-size: 13px;"><br></div>
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On Tuesday, December 31, 2024 at 04:17:42 PM EST, Jerome Slate <slatemd@comcast.net> wrote:
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<font face="Helvetica, Arial, sans-serif" size="4">Dear LTCG Group,<br clear="none">
No worries about the AI energy load ~ 40% increase in USA energy
output by 2050.<br clear="none">
Small modular nuclear reactors are coming to the rescue.<br clear="none">
We will have a live speaker on this topic on Feb 12. <br clear="none">
George W Griffith PhD from the Idaho National
Laboratory, part of the Dept of Energy, will present this topic.<br clear="none">
We are all saved.</font><font face="Times New Roman, Times, serif" size="4"><br clear="none">
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Jerry Slate</font><br clear="none">
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<div class="yiv2250455876moz-cite-prefix">On 12/31/2024 11:05 AM, Robert Primak
via LCTG wrote:<br clear="none">
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<div dir="ltr" style=""><font size="3">The
problem is, New Scientist has a paywall. To read the article
we would have to subscribe. (Which might not be a bad idea
for some of us.) </font></div>
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</font></div>
<div dir="ltr" style=""><font size="3">But
anyone can listen to this audio-only breakdown of the same
fundamental concepts.</font></div>
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<div dir="ltr" style=""><span><font size="3" style="background-color:inherit;"><b>How Running AI
Computations Backwards Can Save Energy</b></font></span><br clear="none">
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<div dir="ltr" style=""><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://www.youtube.com/watch?v=kKAwpyj98m0"><font size="3">https://www.youtube.com/watch?v=kKAwpyj98m0</font></a></div>
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<div dir="ltr"><span><font size="3" style="background-color:inherit;">The Singularity
Labs | 12:35 m:s</font></span><br clear="none">
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<div dir="ltr" style=""><font size="3">Fascinating
discussion, and makes the concepts much clearer. </font></div>
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</font></div>
<div dir="ltr" style=""><font size="3">BTW,
reverse-time computation has nothing to do with time as in
space-time. It's a technique of doing some calculations
back-to-front, as well as front-to-back. It can be much more
efficient in terms of CPU and NPU loads, as well as making
the computations happen faster. </font></div>
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<div dir="ltr" style=""><font size="3">Pruning
of irrelevant background details has an even greater effect
on computational efficiency. </font></div>
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</font></div>
<div dir="ltr" style=""><font size="3">Given
the huge energy demands of AI, as well as AI's tendency to
use up a lot of GPU and other hardware resources, this is an
important area of concern. </font></div>
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<div><span style="font-size:medium;">-- Bob Primak </span></div>
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<div> On Tuesday, December 31, 2024 at 10:10:16 AM EST, John
Rudy via LCTG <a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:lctg@lists.toku.us" target="_blank" href="mailto:lctg@lists.toku.us" class="yiv2250455876moz-txt-link-rfc2396E"><lctg@lists.toku.us></a> wrote: </div>
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<p class="yiv2250455876MsoNormal">I have been getting
this very interesting magazine for a couple of
months. It is mostly short stories on a VERY wide
swath of technical issues. Seems to be UK based.
It is a weekly of about 40 pages, and the 12/29
article had this article on the cost of AI computing
and the way in which computers use so much money
erasing data. I only partially understand it but it
appears to be well worth reading. Then someone with
more knowledge that I can explain it at a meeting.</p>
<p class="yiv2250455876MsoNormal"> </p>
<p class="yiv2250455876MsoNormal"><a rel="nofollow noopener noreferrer" shape="rect" target="_blank" href="https://www.newscientist.com/article/mg26435231-300-how-to-fix-computings-ai-energy-problem-run-everything-backwards/" class="yiv2250455876moz-txt-link-freetext">https://www.newscientist.com/article/mg26435231-300-how-to-fix-computings-ai-energy-problem-run-everything-backwards/</a></p>
<p class="yiv2250455876MsoNormal"> </p>
<p class="yiv2250455876MsoNormal"><span style="font-size:10.0pt;font-family:Arial, sans-serif;">John Rudy</span></p>
<p class="yiv2250455876MsoNormal"><span style="font-size:10.0pt;font-family:Arial, sans-serif;"> </span></p>
<p class="yiv2250455876MsoNormal"><span style="font-size:10.0pt;font-family:Arial, sans-serif;">781-861-0402</span></p>
<p class="yiv2250455876MsoNormal"><span style="font-size:10.0pt;font-family:Arial, sans-serif;">781-718-8334
cell</span></p>
<p class="yiv2250455876MsoNormal"><span style="font-size:10.0pt;font-family:Arial, sans-serif;">13 Hawthorne
Lane</span></p>
<p class="yiv2250455876MsoNormal"><span style="font-size:10.0pt;font-family:Arial, sans-serif;">Bedford MA</span></p>
<p class="yiv2250455876MsoNormal"><span style="font-size:10.0pt;font-family:Arial, sans-serif;"><a rel="nofollow noopener noreferrer" shape="rect" ymailto="mailto:jjrudy1@comcast.net" target="_blank" href="mailto:jjrudy1@comcast.net" class="yiv2250455876moz-txt-link-freetext">jjrudy1@comcast.net</a></span></p>
<p class="yiv2250455876MsoNormal"><span style="font-size:11.0pt;"><img id="yiv2250455876Picture_x0020_1" border="0" width="124" height="115" style="width:1.2916in;min-height:1.1927in;" src="" yahoo_partid="1.2"></span><span style="font-size:10.0pt;font-family:Arial, sans-serif;"></span></p>
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