im impressed with the different views everyone has. i dont know how many of you would agree with me a multicore processor lets say a quad is 4 nodes in one. could one say it like that?<br><br><div class="gmail_quote">On Thu, Apr 23, 2009 at 9:06 PM, Nifty Tom Mitchell <span dir="ltr"><<a href="mailto:niftyompi@niftyegg.com">niftyompi@niftyegg.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">On Tue, Apr 21, 2009 at 09:46:07PM +0200, Jonathan Aquilina wrote:<br>
><br>
> is it possible to have a single multicored machine as a cluster?<br>
<br>
A single machine with multiple cores can act like a small but worthy<br>
cluster. In fact it can also do fun stuff like OpenMP.<br>
<br>
You can run Open MPI now and have a batch system<br>
running in the background. With quad core it<br>
almost makes sense to have three cores in the<br>
MPI batch queue leaving one core for 'interactive' use.<br>
<br>
Ignoring the batch system a dual core processor makes it<br>
interesting to locally develop and debug MPI codes. Future quad+<br>
core processors will be even more interesting. One of<br>
the difficulties with clustering is the "on ramp" or<br>
learning curve. A modern dual core laptop is a worthy development<br>
tool for both MPI and OpenMP.<br>
<br>
The important point is understanding what<br>
a "cluster solves" for you. A Beowulf point<br>
might be "how to muster a pile of inexpensive<br>
networked boxes to the work load of a group or problem space".<br>
<font color="#888888"><br>
<br>
<br>
--<br>
T o m M i t c h e l l<br>
Found me a new hat, now what?<br>
<br>
</font></blockquote></div><br><br clear="all"><br>-- <br>Jonathan Aquilina<br>