Posts by jegs

1) Message boards : Number crunching : new to rosetta using q6600 (Message 50773) Posted 17 Jan 2008 by jegs Post: hmmm... don't think my q6600 rac was ever that high when it was doing 100% Rosie, 24/7. iirc, somewhere in the 12xx's or 13xx's. If Boinc/Rosie are using 100%, why would it throttle down? Thought that was only when cpu wasn't being pushed too hard. you should get something in the region of 1700 RAC from a 2.4GHz Q6600 on 24/7. If you're getting less then it might be because the CPU is throttling down... is it definitely running at 2.4GHz when Rosetta is the only thing running? "Throttling down" happens when the CPU reaches an unsafe temperature from continued use and will not run at full speed until it has cooled back down. It's more of a problem with laptops but can happen in desktops with poor cooling.
2) Message boards : Number crunching : Difference between GHZ and FSB? (Message 50583) Posted 11 Jan 2008 by jegs Post: How come 1.73GHZ T2250 533fsb cpu crunch faster than 3ghz P4 HT 800fsb cpu? both used only one core (for HT it is one thread). The T2250 uses the new "Core" technology and the P4's use the old "Netburst" technology. The newer processors with "Core" technology can do more work per clock cycle than the old P4's with "Netburst". It's like comparing apples to oranges.
3) Message boards : Number crunching : Problems with Rosetta version 5.85 (or 5.86 for linux) (Message 50274) Posted 2 Jan 2008 by jegs Post: So... no resolution here ? 5 of my cpu's have been out of service since Dec. 20 On line but unable to get any work units that can be processed in 256 MB on 2.6 Ghz intel hyperthreading processors. Too bad. Since BOINC sees a Hyperthreaded CPU as a two core processor and crunches two work units at a time on it you really only have 128MB of memory per CPU so it does not meet minimum memory requirements. You could turn off Hyperthreading in the bios and run it as a single core processor or get more memory.
4) Message boards : Number crunching : Problems with Rosetta version 5.85 (or 5.86 for linux) (Message 49681) Posted 14 Dec 2007 by jegs Post: BOINC is in control of the memory allocation, and enforcing the configured limits, not Rosetta. So for those that are seeing your configured limits exceeded, please post about it on the BOINC message boards, and at a minimum let us know your BOINC version and your platform (Linux, Mac or Windows). With all due respect, none of the other projects I participate in have this problem. Passing the buck will not get me to reassign hosts back to this project. Nevertheless, I am running BOINC versions 5.10.28 and 5.10.13, all on windows systems (98/2000/XP). The errors I have had occurred on both versions. Only one of your machines meet the system requirements for Rosetta@home so if they crash don't blame the project. From the Rosetta@home recommended system requirements page. "If your machine does not meet the minimum system requirements, we recommend that you do not start the Rosetta@home project. If you have already started the project and decide it is too demanding on your PC, stop the BOINC client process or if you are using the BOINC Manager, "Detach" the Rosetta@home project. There may be other BOINC projects that are suitable for your machine."
5) Message boards : Number crunching : Problems with Rosetta version 5.85 (or 5.86 for linux) (Message 49663) Posted 13 Dec 2007 by jegs Post: As several others have posted, I am stopping all Rosetta work. I think this project has potential for producing something useful but I can't afford to have my systems shut down by something non-essential. Last night Rosetta requested 2G of virtual memory even though I have set it to only use 30% of virtual memory and there should only have been 1.2G of virtual memory. Not only did all Rosettas crash, but several other applications crashed and the only way to shut down was to power off. This is totally unacceptable. Please let me know when the project is better behaved. Set your VM to 3 gigs and crunch away. Works for me.
6) Message boards : Number crunching : Problems with Rosetta version 5.85 (or 5.86 for linux) (Message 49546) Posted 9 Dec 2007 by jegs Post: I'm sorry about this but until something is done about 5.85 I'm going to have to suspend R@H and not allow any more tasks. My computer keeps running into problems with this app. I'll keep checking back every now and then to see when a fix has happened Your computer does not meet the minimum memory requirements for Rosetta@home. You will need to install more memory or find a project with less memory requirements.
7) Message boards : Number crunching : Anything to make Rosetta crunch faster? (Message 48608) Posted 13 Nov 2007 by jegs Post: The only thing that will increase your RAC is a faster processor.
8) Message boards : Number crunching : Pentium D 925 3.0 GHz for Rosetta? (Message 46709) Posted 21 Sep 2007 by jegs Post: I have an opportunity to buy one of these pretty cheap. The downside of these is it's only 800 MHz FSB. The upside is the 4 MB L2 cache. Any thoughts on one of these for a dedicated cruncher? As I mention before I have 3 Intel Pentium D 920 2.80GHz cpu's that I tried to use for my upgrade. I could give 1 to you if want. I appreciate your generosity. I would definitely put it to good use as a full time cruncher. Is there a way I can PM you my address? I don't see a PM option on the Rosetta boards like SETI has on theirs.
9) Message boards : Number crunching : Pentium D 925 3.0 GHz for Rosetta? (Message 46648) Posted 19 Sep 2007 by jegs Post: I have an opportunity to buy one of these pretty cheap. The downside of these is it's only 800 MHz FSB. The upside is the 4 MB L2 cache. Any thoughts on one of these for a dedicated cruncher?