Author: Robert Hyatt
Date: 08:52:41 08/30/02
Go up one level in this thread
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. Add EGTBs and try them on that 15K drive. You will notice a difference then, for programs that probe in the search... > >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
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