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Subject: Re: With 64 Ram, how much can i use for Hash Tables for Hiarcs7.32

Author: James T. Walker

Date: 18:18:39 06/16/99

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On June 16, 1999 at 09:30:29, Melvin S. Schwartz wrote:

>
>On June 16, 1999 at 07:29:58, James T. Walker wrote:
>
>>On June 16, 1999 at 07:04:46, Terry Ripple wrote:
>>
>>>  Also, would it be Best to use less for Faster time controls like 30 min.,-
>>>15 min. Speed Chess? And what do you think would be the Max. i could use for
>>>Slower time controls having Only 64 RAM and using an AMD K6 at 266mhz?
>>>
>>> Thankyou so much,
>>> Terry
>>
>>Hello Terry,
>>With 64 Meg Ram you can probably use 44 Meg for hash tables with no problem at
>>the longer time controls.  It's one of the buttons under "Load engine" and
>>probably there because it's recommended for computers with 64 M RAM.  I use 16
>>Meg for game/5 min but 8 meg is plenty for that time control especially on a
>>slow computer like you have.  You can also run some test using the "HiarcsMark"
>>and try different hash table settings to find which gives you the highest
>>"HiarcsMark".
>
>Hello Jim,
>
>What Hiarcs mark? In my Hiarcs 7.32 it says Fritz mark!! Also, the so-called
>manual with Fritz 5.32 on top, gives the same formula for hash-table as Fritz -
>even Hiarcs 7.32 does the same under levels.
>
>Mel
>>Jim Walker

Hello Mel,
I don't know about your program but my HIARCS 7.32 has a HiarcsMark.  It is in
the same place as the "FritzMarK" but definitely labeled "HiarcsMarK".  It's
under the Menus in this order:Levels,Engine research,HiarcsMark.  And when you
click on HiarcsMark the box that comes up is also labeled HiarcsMark at the top
and shows the (hash=16384kB) beside the label.  If your Hiarcs 7.32 does not
have this then I would complain! :-)  Also since Hiarcs searchs about1/10 the
speed as Fritz it should need nowhere near the hash tables size Fritz needs.  I
use 16 meg for Fritz at game/5 minutes and never see the 100% sign come on.  So
I'm sure Hiarcs will work fine with 8 Meg at blitz.  My HiarcsMarks are:
PII 333 short:122(57.25s) 34Kn/sec
K6-2 400 short: 110 (63.4s) 31Kn/sec
My FritzMarks are:
PII 333 short 250 364Kn/s
K6-2 400 short 288 420Kn/s
So you can see that Fritz is at least 10 times faster than Hiarcs in nodes/sec.
I believe this rate is directly related to how fast you can fill the hash
tables.
Jim Walker



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