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Subject: Re: crafty faster on AMD however

Author: Robert Hyatt

Date: 20:42:03 09/27/02

On September 26, 2002 at 21:04:12, Aaron Gordon wrote:

>Slate ran many tests, we managed to get the speedup with one CPU using the
>single-cpu binary vs dual cpu binary to 1.65x. Using one CPU in the dual cpu
>binary vs two cpus in the dual cpu binary was 1.69x. In the particular tests you
>are speaking of, was this the benchmark in crafty or some sort of test suite?
>Also, which binary did you use for the tests? If you didn't use one of
>mine or something very similar try going to http://speedycpu.dyndns.org/crafty/
>and use one of the SMP binaries near the top. I'd like to see what sort of
>speedup you get.

I didn't run the SMP tests for AMD, I don't have a one here and have no plans
to get one.  I posted a chart of data others provided.  I don't even remember
which position we used now.  All that was significant was that all the speedup
numbers (raw nps, not parallel search times) were in the 1.4-1.5 range with
AMD, and 1.8 and above for the intel boxes...

I personally believe it highlights a memory bottleneck...

Another thing.. Aaron Gordon 01:28:02 09/28/02
- Re: Another thing.. Robert Hyatt 09:39:05 09/28/02
  - Re: Another thing.. Vincent Diepeveen 08:36:51 09/29/02
    - Re: Another thing.. Robert Hyatt 20:38:53 09/29/02
      - Re: Another thing.. Vincent Diepeveen 01:36:10 09/30/02
        
        Re: Another thing.. Robert Hyatt 12:02:55 09/30/02
  - Re: Another thing.. Aaron Gordon 21:33:30 09/28/02
    - Re: Another thing.. Robert Hyatt 20:43:26 09/29/02
      - quad p4 Vincent Diepeveen 06:26:54 10/01/02
      - Re: Another thing.. Aaron Gordon 23:13:54 09/29/02
        
        Re: Another thing.. Robert Hyatt 12:05:48 09/30/02
        
        Re: Another thing.. Vincent Diepeveen 06:34:16 10/01/02
        
        Re: Another thing.. Robert Hyatt 13:16:48 10/01/02
        
        Re: Another thing.. Vincent Diepeveen 12:08:36 10/02/02
        
        Re: Another thing.. Robert Hyatt 13:15:36 10/02/02
        
        Re: Another thing.. Vincent Diepeveen 13:55:04 10/02/02
        
        Re: Another thing.. Robert Hyatt 14:26:44 10/02/02
        
        Re: Another thing.. (more info) Robert Hyatt 14:41:23 10/02/02
        
        Re: Another thing.. (more info) Gareth McCaughan 17:36:00 10/03/02
        
        Re: Another thing.. (more info) Robert Hyatt 19:35:48 10/03/02
        
        Re: Another thing.. Aaron Gordon 06:31:22 10/01/02
        
        Re: Another thing.. Vincent Diepeveen 06:38:17 10/01/02
Re: crafty faster on AMD however Aaron Gordon 00:54:14 09/28/02
- Re: crafty faster on AMD however Vincent Diepeveen 08:42:34 09/29/02

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