Message boards : Number crunching : Simulation has become unstable
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369x-SANTI_MAR422cap310-8-32-RND5608_0 | |
ID: 35111 | Rating: 0 | rate: / Reply Quote | |
369x-SANTI_MAR422cap310-8-32-RND5608_1 | |
ID: 35112 | Rating: 0 | rate: / Reply Quote | |
Your GPU is too hot. Use MSI Afterburner (or similar) to control the fans and keep the GPU cool (ideally below 70C). When the GPU is >80C failures are common. Your temps would not keep rising if you had a fan profile or specific fan setting in place. | |
ID: 35122 | Rating: 0 | rate: / Reply Quote | |
thx for your Information. | |
ID: 35125 | Rating: 0 | rate: / Reply Quote | |
You should be able to see the GPU temperature drop as you increase the fan speed. | |
ID: 35126 | Rating: 0 | rate: / Reply Quote | |
I had no problems in the past, neither | |
ID: 35130 | Rating: 0 | rate: / Reply Quote | |
I think I'm developing a twitch. | |
ID: 35134 | Rating: 0 | rate: / Reply Quote | |
I had no problems in the past, neither That doesn't mean you won't have trouble here, if that's what you're saying. ____________ BOINC <<--- credit whores, pedants, alien hunters | |
ID: 35138 | Rating: 0 | rate: / Reply Quote | |
The Specifications | |
ID: 35143 | Rating: 0 | rate: / Reply Quote | |
So what's yer point? You think the tech specs prove that the years of experience skgiven has is wrong? Is that it? Do the tech specs tell you how to crunch GPUgrid? | |
ID: 35152 | Rating: 0 | rate: / Reply Quote | |
As English is not my native language, feel free to interpret whatever you want in my words. | |
ID: 35155 | Rating: 0 | rate: / Reply Quote | |
As English is not my native language, feel free to interpret whatever you want in my words. Did you set a fan curve or static rate? Did this improve things? ____________ FAQ's HOW TO: - Opt out of Beta Tests - Ask for Help | |
ID: 35167 | Rating: 0 | rate: / Reply Quote | |
I have had 3 tasks with this result - "The simulation has become unstable". | |
ID: 35192 | Rating: 0 | rate: / Reply Quote | |
BobMALCS, | |
ID: 35193 | Rating: 0 | rate: / Reply Quote | |
What I do object to is not getting credit for the several hours of work done for each task when there is no apparent fault with my PC. At some projects errored tasks are valuable because it tells the researchers what does not work. It's not that way at this project. Here errored tasks provide no such info therefore they have no value at all. Probably the only thing wrong with your PC is that it's not configured the way it needs to be configured to run GPUgrid tasks error free. If you configure it properly it will run GPUgrid tasks error free (unless there are defective or failing components in the computer). GPU tasks from other projects don't work the GPU as hard as tasks from this project do. To run tasks from this project you need to tune your configuration carefully and make sure your machine is cooling adequately. I know it's hard to imagine that a GPU that runs other projects OK might not be configured properly for this project but it's true. In the last 30 days I've seen several crunchers with the same complaint as you who have accepted the fact they need to tune carefully and now they're running error free. Those who can't accept it are either crunching elsewhere or returning more errors than they need to. ____________ BOINC <<--- credit whores, pedants, alien hunters | |
ID: 35196 | Rating: 0 | rate: / Reply Quote | |
Thanks for the comments. However my GT760 is overclocked and runs very nicely within its limits. So rather than spending hours trying to tweak it to run GPUGrid and potentially upset a very stable setup I'll just leave GPUGrid well alone. | |
ID: 35203 | Rating: 0 | rate: / Reply Quote | |
How to read here I'm not alone with this problem: | |
ID: 35243 | Rating: 0 | rate: / Reply Quote | |
angemessen | |
ID: 35245 | Rating: 0 | rate: / Reply Quote | |
Thanks for the comments. However my GT760 is overclocked and runs very nicely within its limits. So rather than spending hours trying to tweak it to run GPUGrid and potentially upset a very stable setup I'll just leave GPUGrid well alone. Clearly your GT760 does not run very nicely! It takes minutes to adjust GPU frequencies and temperatures. ____________ FAQ's HOW TO: - Opt out of Beta Tests - Ask for Help | |
ID: 35260 | Rating: 0 | rate: / Reply Quote | |
skgiven. | |
ID: 35271 | Rating: 0 | rate: / Reply Quote | |
TThrottle is a great problem, however when using it with GPU-crunching it will results in errors. The program does not "slow down" the CPU and GPU usage at a certain rate, but let it run 100% and then only a few % and so on and then CPU and GPU stay cool(er). For at least with GPUGRID tasks this stopping and starting of the WU will let if fail after a while. That is the reason I don't use TThrottle anymore. | |
ID: 35278 | Rating: 0 | rate: / Reply Quote | |
skgiven. WTF!!!! You've OCd your CPU to 4.33GHz and now you're throttling it back with TThrottle?????!!!!! That just doesn't make any sense. It's like building a super fast engine then slipping the clutch so the vehicle doesn't go too fast. Of all the programs and BOINC projects I run only GPUGRID fails in any way so as far as I am concerned my system runs nicely. Those other GPU projects are wussy projects. Any old FUBAR'd system, even yours, can crunch them. GPUgrid is the cream of the crop, the top dog amongst all GPU using BOINC projects. The admins and the dev here are what other GPU using projects only wish they could be. The only reason your system can't run GPUgrid is because you've FUBAR'd your system. From what I have read it seems that the only option I have to get GPUGRID to run is to downclock the GPU. If I did that then it will impact the other BOINC projects adversely. So I will not downclock the GPU. You have plenty of other options but it seems you've made up your mind that your system is the model of perfection and should run GPUgrid exactly the way it is. It is, as you say, simple to change the various GPU parameters. However, it takes experience to do it properly. Well then get the experience. Plenty of other people have done exactly that. I suspect most people running GPUGRID are not experts nor wish to become one. You don't need to become an expert but if that's the word you prefer to use then fine continue to delude yourself. But that isn't going to get you crunching GPUgrid. Also, what you left unspoken, is that it takes many hours of checking, over several GPUGRID tasks, to ensure that the changes have the desired effect and also that other projects and programs still run as well as before. That's debatable but let's say it's true. If you don't want to do the work then you don't get to run with the big dogs; you just sit on the porch with the pups and watch. One final point. It is quite possible to write programs, either deliberately or by accident, that drive a component beyond its safe limits or seriously affect other programs. It looks to me that GPUGRID, in a perfectly reasonable desire for efficiency, is reaching or has reached that point. It is now up to the programmer to seriously consider what and how they are coding. You obviously don't know spit about coding and the proof is that you're OCing your CPU then throttling it back. Your "advice" to the programmer here is a sad joke at best and the meanderings of a noob at worst. In summary, getting GPUGRID tasks to run without error is not quite as simple as you make out. Yes it is and if you would spend more time reading about it and thinking about it and stop wasting time arguing about it you would be half way there by now. I've seen several other non-experts do it, why can't you? I have no doubt others will, perhaps vehemently, disagree with me. But this is my opinion just as you have yours. You and skgiven both have opinions, that much is true. To say your opinion on this topic is as informed and valid as skgivens' opinion is, well, the thought just makes me ROFLMAO. ____________ BOINC <<--- credit whores, pedants, alien hunters | |
ID: 35279 | Rating: 0 | rate: / Reply Quote | |
<sigh> | |
ID: 35367 | Rating: 0 | rate: / Reply Quote | |
<sigh> Wrong. From you have told us about yourself and what you're doing it's easy to see you're advising on topics you know little about. Your monkey see monkey do (it works at project A therefore is has to work at project B too) solution is no solution at all. Call that a flame if you want, I call it the truth and I believe the more experienced crunchers here will agree with that opinion. 2 - I will NOT turn this thread into a flame-fest. You can, of course, do whatever makes you feel good. If you think I am posting in this thread to make me feel good you're wrong again. I post to try to help you and others feel good by telling you what isn't likely to happen so that you can pursue a more realistic strategy for achieving success crunching here. 3 - I will let the readers make up their own minds. How magnanamous of you. I'm out of here. <yawn> ____________ BOINC <<--- credit whores, pedants, alien hunters | |
ID: 35371 | Rating: 0 | rate: / Reply Quote | |
In summary, getting GPUGRID tasks to run without error is not quite as simple as you make out. I think you are right it is not simple. Even after reducing the temperature you may have problems; you will very likely have to reduce the clock. But since your card is over-clocked anyway, you are really just reducing the clock to the value that Nvidia specified, which they did for a reason. If you (or the factory) overclock the card, you take your chances. GPUGrid is not a gaming community, and maybe they should make more allowances for that when they design their programs. But I am not a gamer anyway, and only use these cards for GPUGrid, so how they perform on other projects is of no concern to me. Each person has his own tolerance for tweaking up the cards, so you must act accordingly. But it is quite possible to get them stable; here are my results for a recently completed run on two GTX 660s on a PC running Windows 7 64-bit: http://www.gpugrid.net/results.php?hostid=165674&offset=0&show_names=1&state=0&appid= I have since moved the cards to a WinXP machine, where they run faster. But as a consequence, they are now a little unstable and I am having to play the tweaking game again. They will be stable again shortly, but whether you consider that fun or not is up to you. | |
ID: 35387 | Rating: 0 | rate: / Reply Quote | |
Impressive Jim, those two so 660 stable. | |
ID: 35390 | Rating: 0 | rate: / Reply Quote | |
TJ, | |
ID: 35391 | Rating: 0 | rate: / Reply Quote | |
Also, I have had to increase the power limit (to 110%) of the cards using Nvidia Inspector. In fact, my most recent problem required that I increase the limit more than that. That required downloading the original BIOS using GPU-Z, modifying it using Kepler Bios Tweaker (I set the power limit to 137.5 watts), and then flashing the BIOS of my Zotac GTX 660 using nvflash. It is not for the faint of heart, and I don't think everyone should attempt it. But that is an extreme case because that card didn't have the greatest heatsink to begin with, and most cards don't require going into the BIOS. You can just use Nvidia Inspector (or MSI Afterburner or whatever else you want) for most cases. | |
ID: 35394 | Rating: 0 | rate: / Reply Quote | |
TJ, No I didn't yet. Good advice Zoltan, I will fiddle with that a bit too. ____________ Greetings from TJ | |
ID: 35417 | Rating: 0 | rate: / Reply Quote | |
Thanks Jim, I know the procedure of updating the GPU BIOS have all the tools but still not done it yet. If I get a second 780Ti I will put the 660 in an older system and then experiment with the BIOS too. | |
ID: 35418 | Rating: 0 | rate: / Reply Quote | |
Message boards : Number crunching : Simulation has become unstable