Vincent,<br>
All the guys I know, myself, in finance, started in mathematics.
Including one Cole medal logician. I'm sure there are some
chemists and physicists who got into finance also. I did myself, that
was what sucked me into software engineering long ago. we don't
necessarily lose our theoretical interests.<br>
Peter<br><br><div><span class="gmail_quote">On 12/4/08, <b class="gmail_sendername">Vincent Diepeveen</b> <<a href="mailto:diep@xs4all.nl">diep@xs4all.nl</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<span class="q"><br>
On Dec 3, 2008, at 8:25 AM, malcolm croucher wrote:<br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Its gonna be used for computational chemisty , not academic but more
private / entrepreneurship. I been doing a lot of research in this area
for a while and was hoping to do some more on my own.<br>
<br>
</blockquote>
<br></span>
That's most interesting, if i google for your name i just get hits in the financial world. How's that possible?<br><span class="sg">
<br>
Vincent</span><div><span class="e" id="q_11e033fa96cb00db_3"><br>
<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Wed, Dec 3, 2008 at 2:11 AM, Robert G. Brown <<a href="mailto:rgb@phy.duke.edu" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">rgb@phy.duke.edu</a>> wrote:<br>
On Tue, 2 Dec 2008, Lombard, David N wrote:<br>
<br>
An acoustic concern. A 1U is quite a bit louder than the normal desktop as<br>
(1) they use itty-bitty fans and (b) there's no incentive to make them<br>
quiet, as nobody is expected to have to put up with their screaming...<br>
<br>
A good point. I actually like Greg's suggestion best -- consider<br>
(fewer) 2U nodes instead -- quieter, more robust, cooler. Perhaps four,<br>
but that strongly depends on the kind of thing you are trying to do --<br>
tell us what it is if you can do so without having to kill and we'll try<br>
to help you estimate your communications issues and likely bottlenecks.<br>
For some tasks you are best off getting as few actual boxes as possible<br>
with as many as possible CPU cores per box. For others, having more<br>
boxes and fewer cores per box will be right.<br>
<br>
The reason I like four nodes with at least a couple of cores each is<br>
that if you don't KNOW what you are likely to need, you can find out<br>
(probably) with this many nodes and then "fix" your design if/when you<br>
scale up into production. Otherwise you buy eight single core node (if<br>
they still make single cores:-) and then learn that you would have been<br>
much better off buying a single eight core node. Or vice versa.<br>
<br>
rgb<br>
<br>
<br>
-- <br>
David N. Lombard, Intel, Irvine, CA<br>
I do not speak for Intel Corporation; all comments are strictly my own.<br>
_______________________________________________<br>
Beowulf mailing list, <a href="mailto:Beowulf@beowulf.org" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">Beowulf@beowulf.org</a><br>
To change your subscription (digest mode or unsubscribe) visit <a href="http://www.beowulf.org/mailman/listinfo/beowulf" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.beowulf.org/mailman/listinfo/beowulf</a><br>
<br>
<br>
Robert G. Brown
Phone(cell): 1-919-280-8443<br>
Duke University Physics Dept, Box 90305<br>
<br>
Durham, N.C. 27708-0305<br>
Web: <a href="http://www.phy.duke.edu/%7Ergb" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.phy.duke.edu/~rgb</a><br>
Book of Lilith Website: <a href="http://www.phy.duke.edu/%7Ergb/Lilith/Lilith.php" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.phy.duke.edu/~rgb/Lilith/Lilith.php</a><br>
Lulu Bookstore: <a href="http://stores.lulu.com/store.php?fAcctID=877977" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://stores.lulu.com/store.php?fAcctID=877977</a><br>
<br>
<br>
<br>
-- <br>
Malcolm A.B Croucher<br>
_______________________________________________<br>
Beowulf mailing list, <a href="mailto:Beowulf@beowulf.org" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">Beowulf@beowulf.org</a><br>
To change your subscription (digest mode or unsubscribe) visit <a href="http://www.beowulf.org/mailman/listinfo/beowulf" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.beowulf.org/mailman/listinfo/beowulf</a><br>
</blockquote>
<br>
_______________________________________________<br>
Beowulf mailing list, <a href="mailto:Beowulf@beowulf.org" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">Beowulf@beowulf.org</a><br>
To change your subscription (digest mode or unsubscribe) visit <a href="http://www.beowulf.org/mailman/listinfo/beowulf" target="_blank" onclick="return top.js.OpenExtLink(window,event,this)">http://www.beowulf.org/mailman/listinfo/beowulf</a><br>
</span></div></blockquote></div><br>