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Subject: Re: Hiarcs7.32 Optimum hash size under System Configuration> How Accurate?

Author: Terry Ripple

Date: 01:44:37 06/27/99

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On June 26, 1999 at 20:15:50, Brett Clark wrote:

>On June 26, 1999 at 04:58:42, Terry Ripple wrote:
>
>>When you go to Levels and then Engine Research, then click on System
>>Configuration you will then see the Optimum Hash Size at(200mhz) for the time
>>control you have set.This changes for each time control setting! Is this fairly
>>accurate or should i be using another formula? Was this for Fritz instead?
>>
>>I have a AMD K6-2, 266mhz MMX with 64RAM. The Hi-Mark short test don`t seem to
>>be very accurate because if you set it for just 1 or 2MB, this will give you the
>>highest Hi-Mark and KN/S for any time control setting!!! I`am confused!
>>
>>Thankyou in advance for any help you can share!
>>Best regards,
>>Terry
----------
Thanks Brett,
    How do you go about figuring out Sudden Death time controls like Game/60min.
Game/30, Game/5min. Whats your formula for average time in this type control?
>
>
>Terry, the formula for Fritz will work for Hiarcs; however you need to
>substitute KN/S for PFreq.  Run a test to find out how many KN/S Hiarcs
>generates on your machine (we'll call this value "n").  Once you determine the
>number, use the formula HT[KB] = 2.0 * n[KN/s] * t[s] (where t[s] = average time
>per move in seconds).
>
>For example, on my Pentium 200, Hiarcs 7.32 runs at about 15 KN/S.  For a 40/2
>match (average of 1 move per 180 seconds), the appropriate hash table size is:
>
>2.0 * 15 * 180 = 5400 KB, or 5.4 MB
>
>Fritz 5.32 runs at about 160 KN/S on my machine, so for the same time control,
>the hash table size is:
>
>2.0 * 160 * 180 = 57600 KB, or 57.6 MB
>
>I've found that this works for all of the engines under the Fritz interface.
>You just need to find out how many KN/S the engine is generating, then plug it
>into the formula.
>
>Hope this helps.



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