Re: [Swarm-Support] 64-bit processors

[Steve Railsback]

Marcus G. Daniels wrote:
> Sure, the code in CVS builds in the usual way on Fedora Core 2 or Redhat 
> Enterprise 3.  I use it frequently for large simulations.
> There's less point in Athlon 64 systems compared to Opterons since the 
> former systems aren't set up to physically support more than 4GB RAM 
> (usually 2 or 3), and you could get that anyway on a 32 bit system.  
> Opteron systems are a little more expensive, but still not bad.  Those 
> systems can be loaded up with 16 or 20 GB of real memory if you want.  
> Also interesting are the new 64 bit Xeon systems.  They supposedly have 
> better floating point performance than Opterons.  I don't think it is 
> true that Athlon 64s or Opterons are clearly all-around faster than 
> Pentium 4s or Xeons.  It depends on the application.  The big win for 
> Athlon 64 / Opterons are for memory intensive applications as the CPU 
> has a built-in memory controller.

So...any idea how to estimate whether a Swarm model is memory-intensive 
enough to give a 64-bit machine a significant advantage? Lots of agents? 
 Are method calls important?

Thanks,

Steve

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