Posts by Brian D. Landis

1) Message boards : Number crunching : CPU Temperature Poll (Message 912636) Posted 29 Jun 2009 by Brian D. Landis Post: Just to toss in a couple of more values: The air temp in the room varies from 24C to 30C. http://setiathome.berkeley.edu/show_host_detail.php?hostid=4913319 This computer is in an Antec 900 case, running a Zalman 9500 cooler. All fan speeds set to low. All speeds are stock, and I'm running optimized applications for SETI and Milkyway. Currently this computer crunches GPUGrid on the 8800GT and Milkyway on the CPU cores. It runs 30C idle and the CPU's peak at 52C after 24+ hours of 100% usage. The GPU runs at 40C idle and peaks at 59C under full load at 50-75% fan speed (I use Riva Tuner to automatically adjust fan speed based on GPU temp; it won't kick 100% fan speed until it exceeds 65C.) Without fan speed adjustment, this card gets up to 70C but has never balked. http://setiathome.berkeley.edu/show_host_detail.php?hostid=4236302 This computer is in a Cooler Master Centurion case, with a stock cooler and stock speeds. It's running optimized applications for Seti (CPU) and Milkyway (CPU), and the stock SETI Cuda application. The CPU's idle at 45C and peak at 64C after 24+ hours of 100% usage. The GPU runs at 55C idle and peaks at 69C under a full load at 75-100% fan speed (again, using Riva to auto adjust the speeds based on temp; it kicks to 100% at 65C or higher.) Without fan speed adjustment, this card has gone as high as 82C and forced a shutdown of the machine. Both machines have been crunching solidly in their current state for 6 months, aside from OS refreshes on the first one as I went from Vista to Win7 Beta to Win7 RC. In winter these temps will all drop 10C. The first machine is about to give its graphics card to the second machine, while picking up a pair of EVGA GTX275's. I'll repost with temps once I get the cards in a few days and see what the differences are. I expect the 8800 in the 2nd case will run quite a bit hotter, as that case does not have half the airflow the Antec 900 does. Not sure what the 275's will do; it's an experiment! ;)
2) Questions and Answers : Unix/Linux : Using Seti on Ubunty Jaunty 9.04 (Message 890841) Posted 3 May 2009 by Brian D. Landis Post: Maybe you want to have an other pair of eyes a look at that app_info.xml of yours to help you. (oops the thread moved. Irritating if there is no email sent upon moderator action) Took me a minute to find it again as well. I think, maybe? I have found my mistake. I downloaded the optimized app onto another machine and unarchived it in a shared directory (this machine is my file server at home.) I then got on the machine doing the crunching, and copied over the app and app_info with BOINC shut down, restarted BOINC and got errors. On a whim, I re-downloaded the app on the machine to use it and unarchived it on the desktop, then copied over the app and app_info (this is the same app from the same site), and it works perfectly. This to me begs the question- does unarchiving it on the local machine somehow set a flag or permission that lets it do its magic, whereas copying an already unarchived app from a different machine cause an issue? That's way beyond my skills to determine. Anyway it seems to work- call it a permission issue or a corrupted download; it's working fine on one machine. The other I won't know until tomorrow when it can get a new task, since it's errored down to 1 per day. Edit: Now that I think about it, I had the same problem with 3 of my linux machines running Milkyway- I suspect that my problem was solved then as well when I unarchived the app on the machine in question rather than copying the uncompressed app from my local file server. Time to find a copy of Linux for Dummies! :)
3) Questions and Answers : Unix/Linux : Using Seti on Ubunty Jaunty 9.04 (Message 890825) Posted 3 May 2009 by Brian D. Landis Post: Computer 1 is successfully crunching after detach/re-attach manually using stock application. The trick becomes if it will persist through a reboot, and then, if it will persist after setting up optimized apps. It's done this before, and will start erroring out after a reboot or a restart of the BOINC manager. Computer 2 now attempting to download it's task for the day, it's also reverted to stock across the board- we'll see what it does. Also double checked permissions on both machines and everything looks good (to my inexperienced eye.) Edit: Computer 2 is now crunching on its appointed task sucessfully. Need to check the same thing- restart manager, computer, etc and make sure that the permissions stick. Edit 2: The error is very clearly on my part- everything is holding fine on stock apps, but when I switched to optimized apps, all hell's broken loose. I've got something wrong in my app_info I suspect; time to go back to basics and do some reading again. :)
4) Questions and Answers : Unix/Linux : Using Seti on Ubunty Jaunty 9.04 (Message 890824) Posted 3 May 2009 by Brian D. Landis Post: A few days ago I started a thread about Boinc and Jaunty also. I noticed that even though I set the preferred browser to Firefox, Epiphany is started when I click on a web related button in the Boinc manager (like message boards, your account, etc) Do you also have this? I haven't had this problem; everything opens properly in Firefox, which is the preferred browser. The Linux versions of 6.6.20 are not released but still in development state and are only for testing. Check the BOINC download page. Yes, and ordinarily I'd just revert to 6.4.5 and be happy, but the trick is I didn't have any issues until some time after upgrading to Ubuntu 9.04 (rather, after some updates to 9.04); I don't think BOINC is to blame. More than likely a bone-headed mistake on my part is- I've played around with Linux on and off for a couple of years but I'm still pretty wet behind the ears. :) Brian D. Landis is using 32bit and has different errors than you showing up. He possibly should check especially that "Computer 2" he had listed for permission problems. In the process of doing so right now. Not sure why the permissions would reset themselves as I have them set at the folder level as well as file level- but like I said, I'm not above making a bonehead mistake! :)
5) Questions and Answers : Unix/Linux : Using Seti on Ubunty Jaunty 9.04 (Message 890806) Posted 3 May 2009 by Brian D. Landis Post: Hmm, yeah that would tend to eliminate the idea of it being BOINC at fault. Perhaps I'll downgrade one of the machines back to 8.10 today and see if that clears anything up, which I suspect it would. If Jaunty's to blame, I admit to being rather at a loss to figure out what would be causing it. I don't remember noticing anything about file permission changes or anything being in the release notes, but I'm no expert and tend to miss a lot anyway. Other thing I noticed- not enough to make this a pattern, but I saw it happen twice... a reboot of the affected machine solved the issue for one set of workunits. The next downloaded batch started producing errors. That happend one time on each machine, and I haven't gotten it to happen again, but that's likely because the two computers had reached daily task limits. I might have to spend some time today browsing through the Ubuntu forums looking for suspects. :)
6) Questions and Answers : Unix/Linux : Using Seti on Ubunty Jaunty 9.04 (Message 890801) Posted 3 May 2009 by Brian D. Landis Post: Now you're making me think, I haven't had enough coffee yet this morning! Both computers are running ext3 filesystems; I set them up to be "tried and true" and they worked like champs since I fired them up, until I upgraded from 8.10 to 9.04. Oddly, they ran 9.04 beta and RC perfectly. I've had the issue with stock applications as well as optimized applications. I'm pondering switching to a different BOINC version; perhaps something in 6.6.20 isn't playing nice (or something in 9.04 isn't playing nice with 6.6.20.) Might do that today and see what happens. Edit: Agreed with you on Jaunty- I love the changes they've been making and it's really coming along, but the errors are definitely frustrating. I'm glad it still works as well as it does on my older machines, and my experience is that they've improved a lot of the modern hardware compatability issues that plagued them; my laptops and day desktops all took installs of it without complaint, and some of them have more usnusual setups.
7) Questions and Answers : Unix/Linux : Using Seti on Ubunty Jaunty 9.04 (Message 890797) Posted 3 May 2009 by Brian D. Landis Post: I've had the same issue- two of my machines are running Ubuntu 9.04, and they both started having intermittent output file errors after some updates a few days back. I fiddled around with some permissions in the folders and got them working, but the next day the problem returned. The two computers are: Computer 1 Computer 2 I'm still digging around on it trying to see if I can figure it out, but I'm no Linux expert. Tried all the obvious stuff (revert to stock, redownload optimized, reinstall BOINC, reset, detach and manually attach... etc) to no avail. If I come up with anything, I'll post back in. Those two machines dominantly crunch on Milkyway (when they can get work, which is infrequent these days) so I'm actively working on getting their seti work sorted out so they can keep plugging away. :)
8) Message boards : Number crunching : 5 dollar donation thread. (Message 868102) Posted 22 Feb 2009 by Brian D. Landis Post: Threw a spot in the hat.. every bit helps, and hope we can put a little dent in the issues! :)

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