Author: Dann Corbit
Date: 22:35:44 08/29/02
Go up one level in this thread
On August 30, 2002 at 01:30:27, Slater Wold wrote: >On August 29, 2002 at 22:54:14, K. Burcham wrote: >>I have answered some expensive questions that I had about SCSI and chess >>programs. >>I purchased a 15000 rpm Seagate SCSI. >>I am using the Adaptec SCSI contoller card. >>I installed this hard drive in my dual processor workstation. >>2x1533mhz amd mp. >>Tyan 2460 motherboard. >>windows 2000 pro. >> >>no problems with the installation. >>everything went smooth. >>ran several tests: test positions that do not access egtb, >>test positions that do access egtb. >> >>i have run a virety of positions, i cannot find a position that i can see >>that this hard drive makes any difference, in depth, kns, node count per post, >>or just time to solve. i can see no change whatsoever between these two hard >>drives. >> >>If you have any suggestions, something I can check in my system, to see if maybe >>i have overlooked something when setting up. Adaptec and Seagate internet sites >>are full of info for setup---so i think everything for setup is correct. >> >>also if you have a position that you think comparing these two hard drives will >>make a difference in speed---then post and i will run to see if your position >>will speedup with 15000 rpm SCSI vs 7200 IDE. >> >>also just some info. when i use my system at the Fritz server, with cable >>connection, i have noticed that when one of my programs is playing 1/0, >>the move speed is so fast that the clock will not change for three to four moves >>sometime, even for egtb access. this is with the 7200 IDE hard drive. >>I have not been on fritz server with SCSI. my point is that even though these >>hard drives are advertised that they are 2 to 3 times faster than IDE, these >>chess programs are not trying to push enough huge data through SCSI to see the >>difference in this type of test. it seems to me that to see the difference in >>these two hard drives, it will have to be something else other than a chess >>program to compare the difference between SCSI and IDE. >> >> >>Cheetah >>model ST318452LW >>18.4 GIG >>15000 RPM >>3.6 ms average >>Ultra 160 SCSI >> >> >>Barracuda ATA >>model ST320011A >>20 GIG >>7200 RPM >>9 ms average >>Ultra ATA/100 >> >>kburcham > >When I bought my 10k SCSI drives I ran 3 tests and posted them all here; the >SCSI drive was about 10% faster. > >On positions were there is little or no TB access, there was no speedup at all. With a full set of 6 piece files (when and if such become available) it will probably be a lot more significant.
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.