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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Oh well as I had said , I have only really ever cared about Results Returned.
And I think once GPUs are in the mix then I should be able to produce a boatload of results in a short space of time. I guess that's all that really matters. ![]() |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Think the Amis say "You Betcha", at the core it's about returning results and as many and as fast as we can get through.
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sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Good to hear that under-clocking will be accounted for. I hope a 10% OC will not get 1.1days.
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
What kind of a point is that? Does a CPU 10% OC get 1.1 days... did it ever? BOINC will continue to record elapsed time as per system clock and those who wish to screw with the system will do so anyhow.
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sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
Well, it's down to the code in the system used to grant 60% on a 60% throttled card. How does it know it's being throttled? From the GFlops peak and an average performance expectation of that card. So, does it work both ways or is there a 100% cap?
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Maybe you can draft a scenario with running at 80%, 100% and 120% of card speed and the associated credits and results, where HCC are fairly steady sized tasks. BOINC I think will be unperturbed and just report second for second, then when faking the time element, it's going the credit/result hunters to bite in the posterior. Golly, there were UD crunchers who ran at 25% and booked full time, wallclock no less, except here, the credits have a controlled base. Whatever ones virtual banking tickles the fancy, the only one fooled is the one doing this.
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mikey
Veteran Cruncher Joined: May 10, 2009 Post Count: 821 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
While cards can run one task at a time very well, one task does not necessarily use all the resources. AMD’s GPU’s are especially capable of running many apps simultaneously. Fascinating. So it seems it comes down to who has how much control of those resources. If WCG's WUs (BOINC?) can request the best use of those resources, and decide for themselves whether to use them all or only to use some and to let (an)other WU(s) use the rest, then the resources will be well used whether the "card" is doing one day per day or many more. Brilliant. That seems fair to me. If the user can tweak parameters so that each WU only gets a minimum of resources and the card runs a zillion WUs slowly in parallel then they'll get a blue badge in no time. Fine. That just shows that they're good at tweaking (and they're probably not doing the maximum feasible amount of work). It's vaguely annoying but I won't loose any sleep over it. A separate GPU badge system would be good for those who like to boast about how fantastic their 'puters are, but it doesn't help humanity. And setting it up will probably take time away from the work the techs do to get new projects running on the grid. I regard the badges simply as showing our commitment to help by providing runtime resources. I don't care if you have a palmtop or a roomful of crunchers -- just crunch what you can and be proud that you're helping. I can only say what is done elsewhere...each Project writes the software to use the gpu on their own, often with help from Nvidia, and decides how much and exactly how to use the gpu. Most decide on a minimum requirement and then write the software to use just short of all of that. So if the minimum is say a 256 megabyte gpu then their software will use like 250 megabytes or so. In Boinc there are a TON of ways to play with the available options, MOST of the time running more units at the same time on a gpu with more than the minimum amount of memory is not helpful, but on some projects it is. So if a workunit fits into memory and takes only 780 megabytes of memory but the gpu has 2 gigabytes of memory, then on some few projects it IS better, as far as points generated and workunits returned, to run 2 workunits at once. MOST people do NOT have 2 gigabytes, or more, memory on their gpu's, MOST of us have 1 gigabyte or less. The cost factor can be a huge deterrent when going beyond 1 gigabyte, but when you need more memory it is extremely helpful. Video processing for example can benefit alot by having a 4 gigabyte gpu, but they can be VERY expensive! In the end we will all crunch with what WCG, and any other project, provides us with the means to. We will do it their way because it is their project and we are just here for our own reasons. If we don't like it we can always move on elsewhere, there are LOTS of other Boinc Distributed Computing Projects out there. The key for us crunchers is to KEEP CRUNCHING!! ![]() ![]() |
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sk..
Master Cruncher http://s17.rimg.info/ccb5d62bd3e856cc0d1df9b0ee2f7f6a.gif Joined: Mar 22, 2007 Post Count: 2324 Status: Offline Project Badges: ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
80% should get 100% points credit, but only 80% runtime credit. The system will have to read the runtime, and look at what percentage was used to complete the task. If it takes say 120% then the real runtime would be 80% due to a 20% throttle. If however the card has a 10% OC then it would complete in 90% of the expected runtime. So the actual runtime as a percentage of expected runtime would need to have a 100% cap.
On Ubuntu and Windows systems alike the GPU automatically downclocks when not in use (and sometimes when it is). So for example, a GTX470 drops from 607MHz to around 400MHz and then to around 100MHz. If Boinc is launched and the card is sitting at 100MHz Boinc will read the clocks and give the card a low GFlops peak rating. If this GFlops peak is used in calculating the points or runtime credit, the results could be skewed. I think the new Boinc credit system grants pre-defined default credit for the first 25tasks returned (don't know if you will be using this, or the opt-out and a bespoke system). When tasks start to run however, the card will jump back up to 607MHz and complete a task as expected. Just don't want to be randomly seeing 6times the runtime granted because of the cards state when launching Boinc. I guess this has been accounted for. |
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mecole
Advanced Cruncher Joined: Jun 18, 2011 Post Count: 55 Status: Offline |
If we are going to talk about badging instead of GPU crunching my suggestion would be to cap the max runtime per user at 24 hours per day and have absolutley nothing to do with performance. Yes, I actually mean per user. Regardless of how many or what flavor hosts, cores, shaders, and whatever comes next, purely and simply showing an individual's commitment to how long they have been actively crunching with WCG on a per project basis.
----------------------------------------In the end we have the stats sites and sig blocks for epeen so I don't see why the WCG badges get everyone one in an uproar. Can you imagine what some of the posts would be like if KR ever said that a new science app was delayed "X" months so they could focus reworking badges and converting UD credits ... how about if there was some form of outage or configuration glitch ... sorry, working on badges right now, let me get back to you in a month or so??? I appreciate the WCG staff for all they do and how well they balance the tightrope of doing everything necessary to keep WCG the best ever multi project BOINC host ![]() ![]() [Edit 4 times, last edit by mecole at Dec 11, 2011 9:37:11 AM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Forum [ fo·rum]
noun A public meeting place for open discussion. An assembly, meeting place, for the discussion of questions of public interest. |
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