<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman",serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">If you need more pictures of the early JPL cluster computers, using acoustic and optical interconnects, let me know.. They’ve recently reorganized the photo archives
here, and it’s a lot easier to find stuff (like pictures of the foundation of the building my office is in, from the 1950s, when they were digging it)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">There’s also a story from Feynman of a pipelined compute chain using EAM equipment (EAM – Electric Accounting Machinery – readers, sorters, punches, programmed
with plugboards) and human computers. You might be able to find pictures, but since the whole project was classified, it’s less likely – the pictures probably declassified 50 years later, but that doesn’t mean someone has spent the time and money to put them
online anywhere.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Jim Lux<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">(818)354-2075 (office)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">(818)395-2714 (cell)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> John Hearns [mailto:hearnsj@googlemail.com]
<br>
<b>Sent:</b> Friday, July 27, 2018 6:17 AM<br>
<b>To:</b> Lux, Jim (337K) <james.p.lux@jpl.nasa.gov><br>
<b>Cc:</b> Beowulf Mailing List <Beowulf@beowulf.org><br>
<b>Subject:</b> Re: [Beowulf] Lustre Upgrades<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">Jim, thankyou for that link. It is quite helpful! I have a poster accepted for the Julia Conference in two weeks time.
<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">My proposal is to discuss computers just like that - on the Manhattan project etc. Then to show how Julia can easily be used to solve the equation for critical mass from the Los Alamos Primer.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">I havent done a damn thing for the poster yet.. ooops.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">I am also arranging a visit to Bletchley Park at the end of the conference.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">JuliaCon is sold out but I am sure you can watch the presentations
<a href="http://juliacon.org/2018/">http://juliacon.org/2018/</a><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">On Fri, 27 Jul 2018 at 15:06, Lux, Jim (337K) <<a href="mailto:james.p.lux@jpl.nasa.gov">james.p.lux@jpl.nasa.gov</a>> wrote:<o:p></o:p></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">William Henry Dana – “Two Years Before the Mast” – An excellent book describing what it was like to be a sailor in the days just before steam, there’s plenty of climbing the rigging
in a sleet storm, while trying to round Cape Horn. – but when they got to California, the weather was a lot nicer. Dana later went on to be a lawyer fighting for sailor’s rights.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Silicon valley wasn’t very developed when Dana was doing his shipboard duties, and there weren’t any disk drives at the time.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">They *<b>did</b>*, however, have parallel cluster computing – rooms full of computers grinding out navigation tables. And I suppose they were commodity computers, using commodity
interconnects (of the day), so could they fairly be called a Beowulf.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://www.theatlantic.com/science/archive/2016/06/the-women-behind-the-jet-propulsion-laboratory/482847/" target="_blank">https://www.theatlantic.com/science/archive/2016/06/the-women-behind-the-jet-propulsion-laboratory/482847/</a>
describes a 1953 version of the same.<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><b><span style="color:black">From:
</span></b><span style="color:black">Beowulf <<a href="mailto:beowulf-bounces@beowulf.org" target="_blank">beowulf-bounces@beowulf.org</a>> on behalf of "<a href="mailto:beowulf@beowulf.org" target="_blank">beowulf@beowulf.org</a>" <<a href="mailto:Beowulf@beowulf.org" target="_blank">Beowulf@beowulf.org</a>><br>
<b>Reply-To: </b>John Hearns <<a href="mailto:hearnsj@googlemail.com" target="_blank">hearnsj@googlemail.com</a>><br>
<b>Date: </b>Friday, July 27, 2018 at 1:03 AM<br>
<b>To: </b>Jörg Saßmannshausen <<a href="mailto:sassy-work@sassy.formativ.net" target="_blank">sassy-work@sassy.formativ.net</a>><br>
<b>Cc: </b>"<a href="mailto:beowulf@beowulf.org" target="_blank">beowulf@beowulf.org</a>" <<a href="mailto:Beowulf@beowulf.org" target="_blank">Beowulf@beowulf.org</a>><br>
<b>Subject: </b>Re: [Beowulf] Lustre Upgrades</span><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
</div>
<div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Jörg, then the days of the Tea Clipper Races should be revived. We have just the ship for it already. Powered by green energy, and built in Scotland of course.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><a href="https://en.wikipedia.org/wiki/Cutty_Sark" target="_blank">https://en.wikipedia.org/wiki/Cutty_Sark</a><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Just fill her hold with hard drives and set sail. Aaar me hearties.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">I can just see HPC types being made to climb the rigging in a gale...<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
</div>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
</div>
</div>
</div>
</blockquote>
</div>
</div>
</body>
</html>