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Subject: Re: Hammer info. And som SMP musings.

Author: Sune Fischer

Date: 14:07:53 03/23/02

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On March 23, 2002 at 15:58:19, Tom Kerrigan wrote:

>On March 23, 2002 at 09:53:13, Dan Andersson wrote:
>
>>As seen in:
>>http://www.aceshardware.com/read.jsp?id=45000312
>>A chess program using traditional work scheduling algorithms will not be using
>>the Hammer architecture at its most effective. But it won't be all that bad due
>>to the HyperTransport tunnels. And high bandwidth memory. A funny consequence of
>>the architecture is that SMP multiprocessing is achieved by having software
>>drivers.
>
>I don't know what you mean by "traditional work scheduling algorithms" but the
>Hammer will be great for running chess programs out of the box. The only way to
>make it faster would be to recompile the programs for x86-64, which reportedly
>yields a 10-15% performance gain.

The Hammer is a 64-bit chip, I expect it to bring a lot more than just 10-15% in
chess, more like 100-150% for those progs with bitboards.

-S.

>-Tom



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