<div class="gmail_quote">2010/9/21 John Clark <span dir="ltr"><<a href="mailto:jonkc@bellsouth.net">jonkc@bellsouth.net</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div style="word-wrap:break-word"><div><div class="im"><div>On Sep 21, 2010, at 1:15 PM, Dave Sill wrote:</div><div><br></div></div><div><div class="im"><div><blockquote type="cite">The probability that DOD or NSA <i>don't</i> have any supercomputers that aren't listed on the Top 500 is close enough to zero that I'll take it as a fact.</blockquote>
<br></div></div><div>I wouldn't know how to even begin to measure the probability for something like that, and I doubt if you do either.</div></div></div></div></blockquote><div><br></div><div>I don't know how to calculate (is there a way to measure probability?) the probably that the Earth is spherical, either, but I know and believe enough to say with confidence that it's high. </div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div style="word-wrap:break-word"><div><div><div class="im"><div><blockquote type="cite">I also have inside information, but I'm not at liberty to share it.</blockquote>
</div></div><div>Then what's the point of mentioning it?</div></div></div></div></blockquote><div><br></div><div>It might mean something to someone who knows me well enough to know that I know what I'm talking about, or to someone who remembers where I work. I've laid hands on Jaguar, for example.</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div style="word-wrap:break-word"><div><div class="im"><div></div><blockquote type="cite"><div></div></blockquote><blockquote type="cite">
<blockquote type="cite"><div>It's interesting that on the list of the 500 most powerful computers in the world the microprocessors in all but 3 of the machines were made by Intel AMD or IBM, all are companies based in the USA. The three exception were number 37, 42 and 383 on the list which had Japanese microprocessors. Nobody used Chinese processors including the Chinese.</div>
</blockquote></blockquote><blockquote type="cite"><span style="border-collapse:separate;font-family:Verdana;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;font-size:medium"><blockquote class="gmail_quote" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0.8ex;border-left-width:1px;border-left-color:rgb(204, 204, 204);border-left-style:solid;padding-left:1ex">
<div style="word-wrap:break-word"></div></blockquote></span></blockquote><blockquote type="cite"><span style="border-collapse:separate;font-family:Verdana;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px;font-size:medium"><div>
It hardly matters. These are commodity chips.</div></span></blockquote></div></div><div>Memory chips are commodities, microprocessors are not.</div></div></blockquote><div><br></div><div>Jaguar has AMD Opterons. You may not be able to buy them by the pound, but they're readily available.</div>
<div> </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div style="word-wrap:break-word"><div> It's also interesting that the operating system for almost all the supercomputers on the list is Linux, and China didn't develop that either. When IBM made their first PC almost 30 years ago it made a very big splash, they thought they owned the home computer market and for a short time they did; but IBM didn't control the microprocessor or the operating system. Today IBM no longer makes PC computers.</div>
</div></blockquote><div><br></div><div>Yes, that's all interesting. How is it relevant to China's ability to top the Top 500? </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div style="word-wrap:break-word"><div class="im"><div><blockquote type="cite">China could probably produce them if they really wanted to</blockquote></div></div><div>I imagine China would rather like to control a vital and very profitable multi billion dollar industry that has profound military implications, but they don't. </div>
</div></blockquote><div><br></div><div>Producing chips is not the same as controlling an industry. I didn't say China could control the microprocessor industry if they wanted to. Maybe they could, maybe they couldn't. But I have no doubt that they could build a fab and clone AMD or Intel CPUs if they <i>really</i> wanted to.</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"><div style="word-wrap:break-word"><div><blockquote type="cite">but why bother?</blockquote></div><div>That's the thing, starting a microprocessor industry from scratch would be a very large bother indeed.</div>
</div></blockquote><div><br></div><div>Again, I never said anything about an industry, just chips.</div><div><br></div><div>-Dave </div></div>