Questions and Answers :
GPU applications :
GPU and CPU disagree
Message board moderation
Author | Message |
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David Anderson (not *that* DA) Send message Joined: 5 Dec 09 Posts: 215 Credit: 74,008,558 RAC: 74 |
My cpu vs other folks GPUs. I don't say there is any error here, but what does it mean? WorkUnit 709859714. A couple GPUs agreed there were 31 pulses and my CPU says there were 5. The spike count disagreed too. Maybe an indication of overheading CPU here? Or other hardware issue on my computer (5766757) ? Should I be worried? I've been watching for invalid or error results from my machines and almost all work tasks are 'validated'. I did have a brief flurry of Signal 11 (5 tasks?) in February I think. That machine has 12 real cores (not the 24 Linux reports, the hyperthreading flag set in the BIOS causes Linux to double the cpu count. I restrict boinc to the 12 real cores). Thanks in advance for any advice. |
perryjay Send message Joined: 20 Aug 02 Posts: 3377 Credit: 20,676,751 RAC: 0 |
You've just experienced the joy of having two GPUs running the old V12 app validate themselves. You were probably right but they matched. One is running a 460 the other is running a 470. The old V12 app throws out nothing but -9s and as, in this case, they can validate each other. Not much you can do about it unless you want to send them both a Private Message asking them to update their optimized apps. I've sent out around a dozen and I've only got back one reply so good luck with that. PROUD MEMBER OF Team Starfire World BOINC |
Lint trap Send message Joined: 30 May 03 Posts: 871 Credit: 28,092,319 RAC: 0 |
Well, at least neither offending pc is owned by "Anonymous". One has 7K+ and the other 10K+ wu's in cache. I gave up trying to see how many errors/invalid wu's they had. TONS of them! Martin |
Fred J. Verster Send message Joined: 21 Apr 04 Posts: 3252 Credit: 31,903,643 RAC: 0 |
Just plain stupid having an FERMI card, but 'forget' to install The right V0.37 Installer, instead the 'older' apps for 200 series of GPU?!. :/ All those false -9 (Result Overflow) or Found Triplets in a Row, have to be computed again. |
Fred J. Verster Send message Joined: 21 Apr 04 Posts: 3252 Credit: 31,903,643 RAC: 0 |
Host 5157509, running GTX295 GPUs (too hot?). Host 5157509, again. This WU was send to 2 other hosts, who reached a Canonical Result and ruled out the error on the above mentioned host. Knowing this, it is possible, a lot more false -9; Result Overflow, could be stored already in DB, but have to be computed, yet again!! |
Fred J. Verster Send message Joined: 21 Apr 04 Posts: 3252 Credit: 31,903,643 RAC: 0 |
Could not edit the previous post so I'll continue............ Host 5396281. http://setiathome.berkeley.edu/show_host_detail.php?hostid=5396281 SETI@Home Informational message -9 result_overflow NOTE: The number of results detected exceeds the storage space allocated. Flopcounter: 331167384.000000 Spike count: 30 Host 4294251. SETI@Home Informational message -9 result_overflow NOTE: The number of results detected exceeds the storage space allocated. Flopcounter: 24376980131.228958 Spike count: 14 Pulse count: 16 Triplet count: 0 Gaussian count: 0 called boinc_finish. Are all -9 , overflow of results being done again? IMHO it has to be done, bcs errors don't belong in the Science Data Base! |
BilBg Send message Joined: 27 May 07 Posts: 3720 Credit: 9,385,827 RAC: 0 |
Are all -9 , overflow of results being done again? No, if two results validate (even because of wrong app) the WU is considered noisy and is not computed (send) again to another computer. Â - ALF - "Find out what you don't do well ..... then don't do it!" :) Â |
perryjay Send message Joined: 20 Aug 02 Posts: 3377 Credit: 20,676,751 RAC: 0 |
Are all -9 , overflow of results being done again? What could be very bad is that one of these wrong -9s might be the one that has the signal we are all searching for. :-( PROUD MEMBER OF Team Starfire World BOINC |
The Weasel Send message Joined: 6 Jun 99 Posts: 127 Credit: 53,205,208 RAC: 0 |
Very true, I admit that I am not always on top of what is going on in SETI, but I always try and get the most updated version of Boinc/Seti going along with the drivers for my computers. When I actually get a chance to read the forums, these conversations always make me make sure I'm doing just that. I have recently noticed a lot of computers that are trying to verify my tasks with a computer name of anonymous. I usually do not recognise computer names, but that name is starting to stand out. When I check the computer, they always seems to be a new computer that only has 1-7 tasks total in history. Is anyone else experiencing this? |
BilBg Send message Joined: 27 May 07 Posts: 3720 Credit: 9,385,827 RAC: 0 |
Your Computers are also hidden, so if you are my "WU-partner" I will see in (possibly yours) Computer details "Owner - Anonymous". I don't know why people hide their Computers - maybe they think we can see the "real" Computer (and files in it) and not just a few details. Should SETI@home show your computers on its web site? yes maybe have to be rephrased, e.g.: Should SETI@home show info about your computers on its web site? yes Should SETI@home show hardware/software configuration of your computers on its web site? yes Should SETI@home show info about your computers (type of CPU, GPU, OS, BOINC, etc...) on its web site? yes http://setiathome.berkeley.edu/prefs.php?subset=project  - ALF - "Find out what you don't do well ..... then don't do it!" :)  |
The Weasel Send message Joined: 6 Jun 99 Posts: 127 Credit: 53,205,208 RAC: 0 |
After all the years, I never knew that if you hide computers it comes up as that, I will have to adjust my setting. Ty for clearing that up for me. I was starting to wonder how some many units could go to one user, lol. |
skildude Send message Joined: 4 Oct 00 Posts: 9541 Credit: 50,759,529 RAC: 60 |
What people aren't aware of is that the default is Computers hidden. They have to actually unhide them on purpose. In a rich man's house there is no place to spit but his face. Diogenes Of Sinope |
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