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Subject: Re: The incidence of large-RAM systems?

Author: Steven Edwards

Date: 10:25:59 09/24/03

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On September 24, 2003 at 07:46:44, GuyHaworth wrote:

>Discounting cluster-machines, and focussing only on SMP-architectures, how
>commonplace are computer systems with 32GB+ and 64GB+ RAM?

I have a dual G5 SMP rackmount with 2 GB RAM.  At the moment, it's compiling
Crafty's enormous.pgn game file into an opening book.

The Apple dual PowerPC G5 desktop has eight DIMM slots, each which can take a 1
GB DIMM.  Unofficially, each can take a 2 GB DIMM, but I don't know if this has
been tested.

The G5 itself interfaces the lower 42 bits of the address bus, so it is limited
to accessing only 4 TB of physical storage.  That would require 2,048 DIMM
slots, so that limit is not a problem.  Well, not for now.



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