Posts by Derek Tweedie

1) Message boards : Number crunching : BOINC Optimized app (Message 404402) Posted 23 Aug 2006 by Derek Tweedie Post: It does a time test, and on some machines (AMD mostly) the SSE2 instruction set is actually faster than the SSE3 instruction set. Not all SSE3 instructions sets are built the same. I was actually talking to Mr. Chicken last night about this. He is doing some new tests (actually trying to make a 64-bit application), and all he said is the tests show that SS2 a lot of times runs faster on AMD chips. As I read other forums, it seems that SSE3 can actually slow down math instructions on many machines, over SSE2. Hi So what one should I use with my Intel E6600?
2) Message boards : Cafe SETI : Optimized Seti Clients (Message 280904) Posted 13 Apr 2006 by Derek Tweedie Post: I have several computer (Xp1900 2600 A64 3200 3700 and Pentium M 770) I am having major problems as to which optimize client and application to use for each computer. can someone tell me where I can get the correct optimized app and client for each of the computers? I have just downloaded several different types (I ran cpuid to determine the specs of each processor). Now with my Pentium M 770 it said sse2 so I got the correct app, but then discoverd different websites with different apps all saying sse 2, I am now confused as to which one I should get. I was running about 35 mins for each unit, I then discoverd a website that said dowload this for optimized Pentium M app and client, now my Pent M takes over 2 hours to do a workunit. which website should I use for the best app and client? Thanks in advance
3) Questions and Answers : Windows : Optimized Clients (Message 253890) Posted 26 Feb 2006 by Derek Tweedie Post: I have an XP 2200+ which takes 3 hours with optimized clients from Tetsuji Maverick Rai. It also takes 3 hours with Cruncher's Cache optimized client (Before using optimized clients it took around 4 hours). So it is not too surprising that your XP still takes hours, it does not get much faster with cache optimization. Your A64 however should calculate a WU in around an hour with any optimized client. I have Cruncher's cache optimized client for A64s with SSE2 and have around 45 mins per WU on an A64 3200. If your 3500 takes hours you may still have Cool&Quiet activated. It doubles to triples the time per WU as Setiathome is a low priority task and allows the processor to lower the multiplier even when it is in use. Try switching it off by either uninstalling the software, turning it of in your control panel or disabling it in your BIOS. If you want to crunch as fast as possiple you do not need any speed management anyway as your PC is supposed to always run at full throttle. Regards, Christoph Hi, Thanks for the reply, I have cool n quiet turned off in the bios. The Athlon 3500 is taking 2 hrs and 35 mins to do a typical work unit. Any ideas? I have installed the SSE3 seti software as my athlon is the venice core which has SSE3 support. Cheers Derek
4) Questions and Answers : Windows : Optimized Clients (Message 253327) Posted 25 Feb 2006 by Derek Tweedie Post: I have just installed the optimized clients for all my PC's (running XP Pro) My Pentium m now turns around a unit in about 35 mins (it use to take about 2 hours on the standard seti client software) however, my A64s and XP processors still take hours to do a work unit, noting that my A64 3500 is quite a bit faster than the Pentium 4 M processor I have. Can anyone recommend a better optimized client for the AMD chips?
5) Questions and Answers : Windows : Credit for work units (Message 252576) Posted 23 Feb 2006 by Derek Tweedie Post: Phew I just read this message ^^^^^^ I was pulling my hair out as I couldnt find 4.18 optimized version anywhere!!! - lol Thanks for the help Del Nice to see your up and running, good improvement aint it, 6500 sec down to 2100 sec for your Pentium. PS Why not join a team with a future ;-) We'll all wave as we pass you in a couple of days WOW that is a massive improvement, I will now do my 2 athlon 64's and 2 AMD XP chips. Shame I didnt do this before! ill be at 50k in a matter of weeks!!
6) Questions and Answers : Windows : Credit for work units (Message 252441) Posted 23 Feb 2006 by Derek Tweedie Post: hang on, I may have given you duff info there. just looked at mine and while boincmgr says ver 4.18 in the projects/seti dir it says 4.11 So, you were right, what you need to do is remove the original files (not the workunits though) and put the new ones in that directory. MAKE A BACKUP FIRST THOUGH Phew I just read this message ^^^^^^ I was pulling my hair out as I couldnt find 4.18 optimized version anywhere!!! - lol Thanks for the help Del
7) Questions and Answers : Windows : Credit for work units (Message 252168) Posted 22 Feb 2006 by Derek Tweedie Post: You are running the optimized BOINC client, which asks for more credit, based on the way the crunching happens. You are NOT running the optimized SETI client, which after you change to, you will get the credit you are looking for, and crunch a lot faster. ok I have found the optimized seti client, at the moment in my seti folder in BOINC there is version 4.18 the optimized seti client is 4.11 so do I just rename the 4.18 to 4.11 and re-start BOINC?
8) Questions and Answers : Windows : Credit for work units (Message 252159) Posted 22 Feb 2006 by Derek Tweedie Post: You are running the optimized BOINC client, which asks for more credit, based on the way the crunching happens. You are NOT running the optimized SETI client, which after you change to, you will get the credit you are looking for, and crunch a lot faster. Ah I see, so where can i get an optimized seti client from then? I can only see the BOINC stuff Cheers
9) Questions and Answers : Windows : Credit for work units (Message 251924) Posted 22 Feb 2006 by Derek Tweedie Post: How come 90% of my workunits have only been given 50% or so credit? I have been looking at other users and some seem to get 90% or more for their units, I am running BOINC seti with 5 PC's and I have installed the optimized clients on each PC. Thanks in advance
10) Message boards : Number crunching : Misleading Stats (Message 146426) Posted 3 Aug 2005 by Derek Tweedie Post: Perhaps this guy is using an optimized CC. Happy crunching, Even if it was optimized surely you could never get the CPU to perform as much as his states? I have another Seti client and it is a authentic AMD, its stats are: MFPS 1116.08 million ops/sec MIS 2006.87 million ops/sec Thats a 1.33Ghz AMD the only one faster than that is the 1.4
11) Message boards : Number crunching : Misleading Stats (Message 146420) Posted 3 Aug 2005 by Derek Tweedie Post: I was just browsing throught the stats on vairous peoples computers and I have noticed the number of PC's that are faster than mine for FPU's and Measured integer speeds. This is to be expected though, but I noticed the following: I have a Athlon 64 3500 and BIONIC rates my pc as the following: Measured floating point speed 1869.85 million ops/sec Measured integer speed 3769.7 million ops/sec I looked at a different user and he had the following: Authentic Athlon (not xp or 64) Measured floating point speed 1914.96 million ops/sec Measured integer speed 3253.12 million ops/sec I fail to see even if the guys PC is overclocked it should be no way near the speed of the A64 3500. Can someone explain this for me? Thanks
12) Questions and Answers : Windows : Pending Credit (Message 130486) Posted 30 Jun 2005 by Derek Tweedie Post: READ THE THOUSAND OF OTHER PEOPLES POSTS! I am so sick of seeing 10,000 messages asking the same damn question myself!! READ BEFORE POSTING, PEOPLE!!! Shut up you moron. I dont like your attitude IDIOT
13) Questions and Answers : Windows : Pending Credit (Message 130008) Posted 29 Jun 2005 by Derek Tweedie Post: How long does it take to get the credit on your account, I have outstanding credit for over 5 days now.
14) Questions and Answers : Windows : Multiple Computers (Message 127790) Posted 25 Jun 2005 by Derek Tweedie Post: Install Boinc on ea one and attach to project with the same ACCT/PW and URL Thanks
15) Questions and Answers : Windows : Multiple Computers (Message 127399) Posted 24 Jun 2005 by Derek Tweedie Post: I have 5 PC's and I used to run seti-classic on each of them separately, Is this the same for BOINC now? or do all the computers pool their resources? IE do I install BOINC on each computer ?
16) Questions and Answers : Windows : Why do I have no credits (Message 127356) Posted 24 Jun 2005 by Derek Tweedie Post: It looks like you have done everything you need to do. You have attached your computer to the project and downloaded two workunits. All you have to do now is continue crunching and reading about the project. Your classic contribution is shown on your account page. Classic credits are not converted over to BOINC credits. Everyone starts at zero here. I see, What if I want to run it on my other computers? will this count towards the same account? Cheers Derek
17) Questions and Answers : Windows : Why do I have no credits (Message 127347) Posted 24 Jun 2005 by Derek Tweedie Post: I have installed and attached my project, but my credits are zero (I have over 1100 units on the classic seti - where have these gone to?) - do I need to do anything else?
18) Questions and Answers : Windows : I am soooo lost with this new software. (Message 127344) Posted 24 Jun 2005 by Derek Tweedie Post: i have dowloaded the software installed it and it has started with a new unit. What I want to know is why does the boinc manager say that I have no credit, (from my old seti account I processed over 1200 units) where has all these old units gone?

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