Author: Vincent Lejeune
Date: 04:23:25 09/15/99
Go up one level in this thread
On September 14, 1999 at 22:43:56, Robert Hyatt wrote:
>
>Here is an interesting WAC run for the currently released version 16.18,
>run on a 21264 alpha (667mhz, nothing top-secret):
>
> 0 20 40 60 80 100 120 140 160 180 200 220 240 260 280
> +------------------------------------------------------------
> 1 | 0 0 0 0 0 0 0 8 0 0 0 0 0 0 0
> 2 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> 3 | 0 0 0 0 0 0 0 0 1 0 0 2 0 0 3
> 4 | 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
> 5 | 0 0 0 0 0 0 0 0 0 0 0 0 0 4 0
> 6 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> 7 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> 8 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
> 9 | 0 0 0 0 0 0 0 0 0 0 0 7 0 0 0
>10 | 0 0 0 0 0 0 0 0 0 0 0 39 0 0 0
>11 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>12 | 0 0 0 0 3 0 0 0 0 0 0 0 1 0 0
>13 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
>14 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>15 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>16 | 0 0 0 0 0 0 0 0 0 1 0 0 2 0 0
>17 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3
>18 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>19 | 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
>20 | 0 0 0 0 48 0 0 0 1 2 0 0 0 0 0
>
>The results are in order by column. positions 1-20 are in column 1, 21-40
>are in column 2, etc. Max time limit was 60 seconds. This is the first run
>I have done where it got all 300 correct on a single-cpu machine. If we drop
>the time limit to 30 secs/position, it misses number 100 and 230, for a total
>of 298. If we drop the time to 10 secs, same result. If we drop this to 5
>secs, it drops to 297.
>
>Obviously this box like crafty and vice-versa. :)
>
>Here is the summary from the end of the test:
>
>total positions searched.......... 300
>number right...................... 300
>number wrong...................... 0
>percentage right.................. 100
>percentage wrong.................. 0
>total nodes searched.............. 236973211.0
>average search depth.............. 4.5
>nodes per second.................. 783641
>
>
>not bad, almost 800K on one cpu. Can you guess how the 1ghz and beyond
>versions will run? And don't forget SMP as this is just one cpu. Pretty
>amazing boxes, those alphas...
What about the cost difference between a quad-xeon 450 and 21264-one processor ?
and between a 8way-xeon 450 and 21264-two processors
?
The 2 systems got approximatively the same NPS for crafty ...
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