It's all about the interconnects and how your application communicates. If you want to calculate a problem you can split N ways without each process having to exchange boundary data, then it doesn't matter the speed of your interconnects or how many cores are on how many boards. However, most problems involved exchange of data between processes. <div>
<br></div><div>If your app is written to take advantage of multi-core machines, then it will put processes on the same machine which talk to each other a lot, and split low-talking processes onto other machines between which the network is slow (communication between processes on the same machine is of course fast).</div>
<div><br></div><div>With this in mind, most clusters are task-built - what are you trying to solve? That will define what hardware you need.</div><div><br></div><div>-Jack Carrozzo<br><div><br><div class="gmail_quote">On Sat, Sep 25, 2010 at 1:07 PM, gabriel lorenzo <span dir="ltr"><<a href="mailto:macglobalus@yahoo.com">macglobalus@yahoo.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">IN CLUSTER COMPUTING, IS THE AMOUNT OF CORE THAT COUNTS?<br>
If I build a cluster with 8 motherboards with 1 single core each would it be the same as using just one motherboard but with two quad core processors? I wanna build one of these but wanna save money and space and if what counts is the amount of cores to process info I think fewer motherboards with dual six-core processors is definitely cheaper just because I wont be needing that many mothers power supplies etc. thanks<br>
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