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Number crunching :
Updating for upcoming apps.....
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Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
I got one. Look at my shiny new toy. Hey, I got my own shiny new toy. I can die happy. Seriously, the flood of queries seems to have died down, so I'll clock off and get some sleep soon. Just a small lemsip first, I think, and then to bed. |
Josef W. Segur Send message Joined: 30 Oct 99 Posts: 4504 Credit: 1,414,761 RAC: 0 |
NEWS before it happens: You, for instance, could copy the Beta stock application and add appropriate entries in your app_info.xml so the servers would know you had an Astropulse v6 application. But it would still be an anonymous platform application as far as the servers were concerned, and subject to the server bug if it is active here. The real issue with the bug is not that YOU get zero credit if you make the choice to try that way, it's that you may be forcing zero credit on all your wingmates. ===================== The list of applications in the preferences will henceforth be the same list of apps shown on the Applications page. But an app record in the database which has no actual applications is just a placeholder, so the SETI@home v7 choice won't do anything for now. Having all listed gives those who have a strong preference the ability to set their preferences before getting work they didn't want. In fact, anyone who is using settings which prohibit some work must opt in if they want the new work. The default (all applications) mode will of course include the new work. I very much doubt that SETI@home v7 will be released here soon. There are some changes in the source code which have not yet been built and tested at SETI Beta. But I'll cross my fingers and hope I'm right, otherwise we'll have a real difficult task trying to reproduce a certain stock buglet in the optimized code. Joe |
Cosmic_Ocean Send message Joined: 23 Dec 00 Posts: 3027 Credit: 13,516,867 RAC: 13 |
I got one. Look at my shiny new toy. Yay, I got one, too. Only took about 15 work requests. All the files needed were downloaded, as well (as expected, of course). Initial estimate is/was ~125 hours, but the ETA is dropping by ~5 seconds per second, so a rough early estimate is ~25 hours for stock on my system, when r409 was doing about 11 hours. Linux laptop: record uptime: 1511d 20h 19m (ended due to the power brick giving-up) |
Wiggo Send message Joined: 24 Jan 00 Posts: 34744 Credit: 261,360,520 RAC: 489 |
Eventual problem with AP 505 validation, now that we have 6.01 in the game. Just had one AP 505 validated, and the credit became appalingly low. Never seen this low credit for an AP before. Might this be some problems with the new validator? I've copped that a few times now when partnered with ATi/AMD video cards, I feel your pain. :( Cheers. |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Nice but if they where smart I guess they should have removed the AP v5 app. Prolly not, John....LOL. My bad, I was thinking 505, not 5.... V5 probably could go, if there were any still lurking, they could be sent out to folks accepting 'other' than selected tasks. My, but my thread got busy whilst I was away at work..... No wonder, what with AP splitting back up again. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Sooooo, and I don't prefer AP, but run it if sent when nothing else is available.... Am I to understand that all AP work split from this point is V6? If so, I should not be getting any more AP, other than perhaps a few reissues, as I am opti, and have no V6 app. Is the download size of a V6 WU the same as a 505? And, has, as one poster alluded to, the crunch time been increased to the point that AP V6 will be a boon rather than a bane to bandwidth usage? (Crunch time VS download size). The kitties wanna know....LOL. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Dave Stegner Send message Joined: 20 Oct 04 Posts: 540 Credit: 65,583,328 RAC: 27 |
Mark, The one's I have from Beta are 8,196K, same as 5.05. Dave |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
Mark, OK, any difference in the crunch times noted yet? "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Dave Stegner Send message Joined: 20 Oct 04 Posts: 540 Credit: 65,583,328 RAC: 27 |
My machines do CPU with opti apps in about 17-18 hours. Only stock is available yet, they take 48 hours or so. Don't think I can answer your question based on that. Not sure what the change from 5.05 to 6.0 is. I have read in other threads that 6.01 is not really diff from 6.0, only that is is passing info to validator that can identify early exit. Quote from Josef in Beta: /quote To add some detail, the changes from version 6.00 to version 6.01 of Astropulse v6 do not affect the science processing. What is being tested now is the Validator ability to tell BOINC when the run time of a task should not be included in the averages. That depends on 6.01 reporting the fraction_done as well as the fraction_blanked which earlier versions already reported. The fraction_done is specifically needed when a task finishes early because there have been 30 repetitive AND 30 single pulses found. Those cases are rare and unpredictable. Joe quote/ Dave |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
OK...if true, then V6 will not be any better than 505 in terms of bandwidth usage. However, the change you are noting is, as I understand it, the last step before limits can be raised since the Boinc code boondoggle that made them necessary. I hope that is a positive sign, and the limits can be raised or lifted once the proper functioning of the new AP validator and app have been verified. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Dave Stegner Send message Joined: 20 Oct 04 Posts: 540 Credit: 65,583,328 RAC: 27 |
That would be nice. Dave |
kittyman Send message Joined: 9 Jul 00 Posts: 51468 Credit: 1,018,363,574 RAC: 1,004 |
That would be nice. Would sure make the kitties sleep more comfortably....LOL. And you know how much kitties luv their sleepy time. "Freedom is just Chaos, with better lighting." Alan Dean Foster |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
OK...if true, then V6 will not be any better than 505 in terms of bandwidth usage. Yes, from what I understand of the changes, the normal download size and runtime of AP_v6 is still the same. However, they have been working on the splitters to try and reduce the number of '100% blanked' and '30/30 exit' tasks that get sent out. Overall, that should reduce the bandwidth usage - particularly, in those bursts when a tape with the stuck data bit gets split and all tasks are uncrunchable. And yes, the hope is very much that this will eventually allow the project to lift the limits. It is, however, the first (but most difficult) step rather than the last. The next stage - once this one has been tested, of course - will see runtime estimates and DCF return to more stable values: and then finally, there will be no need for the limits any more - we hope. |
cliff Send message Joined: 16 Dec 07 Posts: 625 Credit: 3,590,440 RAC: 0 |
Hi Richard, OK, as long as I know that in fact there is no v7 as such right now and can ignore it:-) Regards, Cliff, Been there, Done that, Still no damm T shirt! |
MarkJ Send message Joined: 17 Feb 08 Posts: 1139 Credit: 80,854,192 RAC: 5 |
Re: app versions Multi-beam v7 As I understand it there is no optimized CPU multi-beam app at the moment, but there was one being tested I thought by Raistmer. The current x41g cuda multi-beam is considered "v7 ready". Not sure about OpenCL multi-beam app. Astropulse v6 I gather there is only the stock app and there isn't an optimized v6 app Could one of the more knowledgeable people (Richard, Joe, Jason or Raistmer) correct me if I am wrong please. BOINC blog |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
Re: app versions As it happens, development and testing work on Multi-beam v7 is proceeding in synch on both the stock and optimised versions of the application. But the changes are bigger in this app, and it's nowhere near ready for prime-time yet. When the stock v7 is released here (it hasn't been yet), optimised apps will follow a few days later, as usual. Much the same applies to Astropulse v6, except the changes are smaller, and development work on this overtook v7. The stock apps are out: optimised versions were developed in parallel at the same time, and are in final testing. This is the first major application release at SETI since CreditNew was introduced two years ago. We've seen odd behaviour at Beta, with zero credit being awarded to applications running under anonymous platform. For that reason, we're going to be very cautious about releasing the optimised applications, following Eric's advice on the front page. There will be a few mine-canaries running optimised apps here, to probe whether the credit bug is actually as serious as we think it is. If you meet a mine canary and get bitten by it, with zero credit for a stock task, please accept our apologies in advance - but I hope you understand why we're doing it. |
LadyL Send message Joined: 14 Sep 11 Posts: 1679 Credit: 5,230,097 RAC: 0 |
Re: app versions optimised MB7 apps are ready to go (more or less, we're still testing) CPU, CUDA (x41g or x41u), ATI OpenCL (r455). edit: that's presuming Eric doesn't do more changes, in which case we obviously have to update as well. Until Kepler is out and somebody here got their hands on one, we cannot be certain if x41g/u works on them. optimised AP v6 are in beta testing on Beta. [or will be when I can get round to put up the AVX CPU app] An updated installer is in preparation, but will not be released until we have established that credit will be granted. Depending on the credit picture we may prerelease the apps, should we still need more beta testing, prior to installer release. Until then only very cautious Alpha will occur on main, we may be prepared to get no credit, but we are not going to let our wingman suffer any more than necessary to establish whether or not credit granting is working. Richard beat me to it. I'm not the Pope. I don't speak Ex Cathedra! |
Claggy Send message Joined: 5 Jul 99 Posts: 4654 Credit: 47,537,079 RAC: 4 |
Mark, From my Benches of Stock AP v6 6.01, it is a little bit faster than the Stock v505 5.05 app, but not much, Claggy |
MarkJ Send message Joined: 17 Feb 08 Posts: 1139 Credit: 80,854,192 RAC: 5 |
Thanks for the replies both Richard and LadyL. While I am not concerned with credit I am sure some users are. I wanted to get an idea what apps I need to update which is why I asked about the versions. Any idea on timeframes for the app roll out? BOINC blog |
Richard Haselgrove Send message Joined: 4 Jul 99 Posts: 14650 Credit: 200,643,578 RAC: 874 |
Thanks for the replies both Richard and LadyL. Eric is suggesting a two week evaluation period, just to be sure. I hope it might be quicker than that, but we won't know until the mine canaries report back. |
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