Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Tip: how to reduce hard drive churning with tablebases

Author: Vincent Lejeune

Date: 10:52:49 03/10/04

Go up one level in this thread


On March 10, 2004 at 13:49:01, Vincent Lejeune wrote:

>Try this ATA flash disk, their access time is way more efficient than classical
>HD :o)
>

Here's more details about the mass storage of the futur :)
http://www.m-systems.com/content/Products/product.asp?pid=34

>
>http://www.theinquirer.net/?article=14635
>
>On March 08, 2004 at 23:49:58, William Penn wrote:
>
>>Pretty simple. Reduce hash size. That's the only thing I've found to have a
>>significant effect when tablebase access starts to churn the hard drive
>>constantly. Engine speed (kN/s) falls dramatically at that point, perhaps to 10%
>>or less of normal speed, and never recovers. However using smaller hash size
>>appears to fix this problem.
>>
>>For example my computer has 1G RAM installed. I can run Shredder 8 with 768MB
>>hash normally, although I often use 512MB which the op system prefers a bit
>>more. Now one would think that 512MB hash would be OK in any situation with 1G
>>RAM, but not so. It's too much hash when tablebase access starts to crank up
>>heavy in endgame situations. At that point, reducing hash size to 256MB usually
>>fixes this problem, restoring engine speed to a reasonable kN/s. I haven't yet
>>found it necessary to goto 128MB hash.
>>
>>[Windows XP Home, Athlon XP 2400+/2.0GHz, 1G RAM]
>>WP



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.