Author: Joachim Rang
Date: 08:47:09 06/17/04
Go up one level in this thread
On June 17, 2004 at 11:29:45, Uri Blass wrote: >On June 17, 2004 at 11:24:23, Uri Blass wrote: > >>On June 17, 2004 at 11:09:16, Joachim Rang wrote: >> >>>On June 17, 2004 at 09:27:02, Uri Blass wrote: >>> >>>>1)Suppose that I bring a computer to the tournament and do not use a loan >>>>computer. >>>> >>>>I will probably do it >>>> >>>>Can I keep the computer there or do I need to carry it every day to my home >>>>and later carry it back to my home? >>>> >>>>2)I think that I will buy a computer from IBM and I am going for the faster >>>>single processor that I can get before WCCC. >>>> >>>>http://www-132.ibm.com/webapp/wcs/stores/servlet/CategoryDisplay?catalogId=-840&storeId=1&langId=-1&dualCurrId=73&categoryId=2588412 >>>> >>>>I think to buy the computer that has a price of 3770$ in that list if I can get >>>>it before WCCC. >>>> >>>> >>>>I decided probably not to buy dual because other people test it with ponder on >>>>so I plan to use only ponder off in my tests and hope that everything is going >>>>to be ok because I do not change my pondering code. >>>> >>>> >>>> >>>>I am not sure if I can get it before WCCC and I try to find out. >>>>I will not buy it if I cannot get it before WCCC(It seems that I assumed wrongly >>>>that the time that somebody in Israel can get a computer is the time that take >>>>to send a computer from USA to Israel in the worst case but people tell me that >>>>if IBM has not that computer in Israel it can take more time). >>>> >>>>IBM does not have this computer in Israel and if I need to wait more than 2 >>>>weeks to get it I am not going to buy it and I guess that I will buy a cheaper >>>>computer from IBM and another computer from IBM with 2 processors for the same >>>>price. >>>> >>>>I decided not to buy dual processors and to concentrate on a single processor >>>>that is faster if I can do it. >>>> >>>>I can later add second processor if I want. >>>> >>>>3)People suggest me for the same price to buy more computers and I want to know >>>>what you suggest to do. >>>> >>>>Speed is important for me in WCCC and I am afraid that I am too late in buying >>>>the fastest computer. >>>> >>>>I decided that building a computer is not an option for me and I need somebody >>>>that I can trust who will teach me how to do it and I do not have somebody for >>>>that purpose. >>>> >>>>I want to know what you suggest and what is the best deal that I can get now >>>>for the same price that I need to pay for the computer that I plan to buy. >>>> >>>>Uri >>> >>> >>>Hi Uri, >>> >>>I would strongly suggest to buy a cheaper system. There is an Athlon 64 3200+ >> >> >>Is the athlon64 3200+ significantly better than the PIV that I can get as loaned >>computer? >> >> >>>with 512 KB 2nd level cache and 2.2 Ghz clockspeed available for about 300 $. An >>>Opteron 150 or an FX-53 will be probably not faster than 10%. >> >>The opteron that I think to buy is only opteron148. >>I do not think that I can get opteron150 and at least the link does not suggest >>it. >> >>Are you sure that the difference is smaller than 10%. >> >>I thought that opteron is always better than athlon(otherwise I do not >>understand why selling opteron1.8 ghz is 2488$ based on the link when the >>Athlon64 is significantly cheaper). >> >>1.8ghz is more than 10% less than 2.2ghz so your words suggest that >>athlon64 3200ghz is both cheaper and faster than the opteron244 1.8ghz. >> >>If this is the case then what is the reason to buy opteron1.8ghz? >> >>I am interested in the number of nodes per second that public movei get in the >>opening position with the athlon. >> >>I remember impressive results of slater with the opteron and I have no idea if >>the athlon can get close to it. >> >>Uri > >Here is slater results: >http://chessprogramming.org/cccsearch/ccc.php?art_id=364613 > >Can you get above 600 Knodes per second with athlon64 3200? > >Uri I'm quite sure one can. If the architecure is the same and that is more or less true for Opterons/FX/AMD 64 than what is critical for the knps is the Clockspeed (of course it is not true for different architectures: P4-clockspeed is worth only 0.7 AMD XP-Clockspeed and only 0.6 AMD 64 clockspeed). An opteron 148 is clocked with 2.2 GHz so is an AMD 64 3400+. There is only one differenc iirc that is the opteron has two RAM-Interfaces. I think that does not matter much (less than 10%). There is also an AMD 64 3200+ with 2.2 GHz out but with a smaller 2nd level cachen (512 KB instead of 1024kb). But the second level cache is also of minor importance for a chess program unless you have your engine specifically designed for this specific architecture. So I bet an AMD 64 3400+ and even an AMD 64 3200+ is the same speed (+-10%) than an Opteron 148. I think there are stores in Europe where one can order an AMD 3400+ with quality components for 1200 € in a week. Whether they deliver to Israel is another question. regards Joachim
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.