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Subject: Re: hyper-threading at dual xeon 2.8Ghz

Author: Vincent Diepeveen

Date: 23:54:21 02/21/03

On February 21, 2003 at 19:49:04, David Weber wrote:

>what chess programs support hyper-threading

DIEP, Crafty, Fritz.

for fritz it speeds up 10% node count at 4 threads at a dual Xeon 2.8Ghz
(compared to HT turned off and 2 threads), but chessbase didn't test yet whether
it actually speeds up search depth (according to Mathias who operates fritz
here).
for shredder it does speed up the node counts but not search depth
so it has SMT/HT turned off here at this tournament and runs with 2 threads at a
dual Xeon 2.8Ghz here.

Re: hyper-threading at dual xeon 2.8Ghz Robert Hyatt 21:39:34 02/22/03
- Re: hyper-threading at dual xeon 2.8Ghz Matt Taylor 22:38:55 02/22/03
  - Re: hyper-threading at dual xeon 2.8Ghz Vincent Diepeveen 04:44:23 02/25/03
    - Re: hyper-threading at dual xeon 2.8Ghz Matt Taylor 10:28:43 02/25/03
      - Re: hyper-threading at dual xeon 2.8Ghz Robert Hyatt 12:27:12 02/26/03
      - bugged code Vincent Diepeveen 15:53:53 02/25/03
        
        Re: bugged code Matt Taylor 18:27:13 02/25/03
        
        Re: bugged code Vincent Diepeveen 06:05:38 02/26/03
        
        Re: bugged code Robert Hyatt 12:40:58 02/26/03
      - Re: hyper-threading at dual xeon 2.8Ghz Vincent Diepeveen 13:23:05 02/25/03
        
        Re: hyper-threading at dual xeon 2.8Ghz Robert Hyatt 12:30:25 02/26/03
        
        Re: hyper-threading at dual xeon 2.8Ghz Matt Taylor 18:14:06 02/25/03
        
        Re: hyper-threading at dual xeon 2.8Ghz Vincent Diepeveen 06:07:31 02/26/03
        
        Re: hyper-threading at dual xeon 2.8Ghz Robert Hyatt 19:00:57 02/26/03
    - Re: hyper-threading at dual xeon 2.8Ghz Robert Hyatt 05:56:27 02/25/03
      - Re: hyper-threading at dual xeon 2.8Ghz Vincent Diepeveen 06:35:56 02/25/03
        
        Re: hyper-threading at dual xeon 2.8Ghz Robert Hyatt 12:48:40 02/26/03
      - Re: hyper-threading at dual xeon 2.8Ghz Vincent Diepeveen 06:19:47 02/25/03
  - Re: hyper-threading at dual xeon 2.8Ghz Robert Hyatt 18:12:45 02/23/03

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