Re: AMD64 X2 questions

[Chris Ahlstrom <ahlstromc@bellsouth.net>]

* Lennart Sorensen <lsorense@csclub.uwaterloo.ca> [2007-08-24 09:27:34 -0400]:

> In fact if you have three processes to run and in total they need 90% of
> one cpu, then it is better to run it all on one cpu and let the other
> one go to power saving mode rather than running half the load on each.
> That does save power and reduce heat.

I found this recent article (by a Microsoft guy!) in Dr. Dobbs to be
interesting:

   http://www.ddj.com/hpc-high-performance-computing/201202924

    August 03, 2007
    How Much Scalability Do You Have or Need?
    "Orders" of Throughput
         
      * How Much Scalability?
      * O(1): Sequential Code
      * O(K): Explicitly Threaded Code
      * Comparing O(1) and O(K)
      * O(N): Scalable Throughput And the Free Lunch

-- 
Tux rox!