Message boards :
Number crunching :
Validation inconclusive
Message board moderation
Author | Message |
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ccappel Send message Joined: 27 Jan 00 Posts: 362 Credit: 1,516,412 RAC: 0 |
I'm seeing an increase in frequency of these "validation inconclusive" messages. I hope this doesn't mean there's something going on with my computers: http://setiathome.berkeley.edu/results.php?userid=652775&offset=0&show_names=0&state=2 edit: http://setiathome.berkeley.edu/workunit.php?wuid=432051318 http://setiathome.berkeley.edu/workunit.php?wuid=418871556 http://setiathome.berkeley.edu/workunit.php?wuid=432050525 "Life is a tragedy for those who feel, and a comedy for those who think." "I never get into an argument that I cannot win." |
Labbie Send message Joined: 19 Jun 06 Posts: 4083 Credit: 5,930,102 RAC: 0 |
Your link doesn't work for the rest of us, but I know what you're talking about. I've been seeing more on mine too. I think a lot of it is the matching of CPU and CUDA as wingmen. Calm Chaos Forum...Join Calm Chaos Now |
ccappel Send message Joined: 27 Jan 00 Posts: 362 Credit: 1,516,412 RAC: 0 |
I edited the links, should work now. I also should have mentioned theses are all AP, r112 SSE3 opt, 1 on each of 3 different computers. "Life is a tragedy for those who feel, and a comedy for those who think." "I never get into an argument that I cannot win." |
Labbie Send message Joined: 19 Jun 06 Posts: 4083 Credit: 5,930,102 RAC: 0 |
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elbea64 Send message Joined: 16 Aug 99 Posts: 114 Credit: 6,352,198 RAC: 0 |
very interesting especially the second link as your wingman has a validation error and so there is nothing you could validate against. i have some of them too http://setiathome.berkeley.edu/workunit.php?wuid=428964969 http://setiathome.berkeley.edu/workunit.php?wuid=417924802 http://setiathome.berkeley.edu/workunit.php?wuid=428964969 http://setiathome.berkeley.edu/workunit.php?wuid=431231896 http://setiathome.berkeley.edu/workunit.php?wuid=418487995 http://setiathome.berkeley.edu/workunit.php?wuid=434521033 http://setiathome.berkeley.edu/workunit.php?wuid=425639304 http://setiathome.berkeley.edu/workunit.php?wuid=429069735 |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
There is pretty big frequency range where shader will do work incorrectly but w/o any error reporting. GPU OCed to this freq area will produce lot of invalid results (validation incomplete first, then weakly similar or failed to validate with third wingman). Unfortunately it's hard to notice unless user will browse his host results. System will appear stable w/o any visual signs of excessive OCing... |
elbea64 Send message Joined: 16 Aug 99 Posts: 114 Credit: 6,352,198 RAC: 0 |
There is pretty big frequency range where shader will do work incorrectly but w/o any error reporting. GPU OCed to this freq area will produce lot of invalid results (validation incomplete first, then weakly similar or failed to validate with third wingman). The linked WUs of ccappel and me are all AP |
john deneer Send message Joined: 16 Nov 06 Posts: 331 Credit: 20,996,606 RAC: 0 |
I'm seeing an increase in frequency of these "validation inconclusive" messages. I hope this doesn't mean there's something going on with my computers: I've had a couple of AP units with this message over the last few days as well. No idea what's causing it. Regards, John. |
Zydor Send message Joined: 4 Oct 03 Posts: 172 Credit: 491,111 RAC: 0 |
I got one of those a couple of days ago. I had a look at the Task ID for those with similar errors, all have the same symptom. They appear to be from markedly slower machines, and all have the stderr message (or similar) several times over: In ap_gfx_main.cpp: in ap_graphics_init(): Starting client. In ap_client_main.cpp: in mainloop(): at dm_chunk_large 2688 In ap_client_main.cpp: in mainloop(): at dm_chunk_large 2816 In ap_client_main.cpp: in mainloop(): at dm_chunk_large 2944 In ap_client_main.cpp: in mainloop(): at dm_chunk_large 3072 In ap_client_main.cpp: in mainloop(): at dm_chunk_large 3200 In ap_client_main.cpp: in mainloop(): at dm_chunk_large 3328 In ap_client_main.cpp: in mainloop(): at dm_chunk_large 3456 No idea what that actually indicates on those machines - anyone know? Regards Zy |
W-K 666 Send message Joined: 18 May 99 Posts: 19062 Credit: 40,757,560 RAC: 67 |
I got one of those a couple of days ago. I had a look at the Task ID for those with similar errors, all have the same symptom. They appear to be from markedly slower machines, and all have the stderr message (or similar) several times over: No idea what these msg's mean but they appear in the stderr for all tasks completed with the default Berkeley app. Here is task 1187117097 that has validated, against mine using the optimised app. |
Byron S Goodgame Send message Joined: 16 Jan 06 Posts: 1145 Credit: 3,936,993 RAC: 0 |
No idea what these msg's mean but they appear in the stderr for all tasks completed with the default Berkeley app. Here is task 1187117097 that has validated, against mine using the optimised app. My guess was they refer to the checkpoints made while the app is running. Guess now is good time as any to test that theory. |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
It's debug message indicating that new iteration over large DM chunk begins. |
perryjay Send message Joined: 20 Aug 02 Posts: 3377 Credit: 20,676,751 RAC: 0 |
How about this one? http://setiathome.berkeley.edu/workunit.php?wuid=433362764 Four of us have completed it. two on Cuda and two on CPU. It has gone out again today to another cruncher. Wonder what is wrong with it? PROUD MEMBER OF Team Starfire World BOINC |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
How about this one? http://setiathome.berkeley.edu/workunit.php?wuid=433362764 well, it's MB result so my former post fully applies to it. Weakly similar most probably due to excessive GPU OCing or overheating. When two strongly similar results were recived all (including weakly similar) recived credit. I consider it as very dangerous practice - to give credit for weakly similar results cause such not stable hosts actually counterproductive to project - their results needed additional verification - waste of processing time and server bandwith. |
perryjay Send message Joined: 20 Aug 02 Posts: 3377 Credit: 20,676,751 RAC: 0 |
Hmmm, just noticed something else now. It looks like they averaged them instead of giving the lowest credit. That's strange. I have been getting a few of the inconclusive. I'm not OCd and most of my work is coming in valid. Wonder if it is just luck of the draw or something of mine going bad? I'll keep an eye on my pendings to see if many more of them go inconclusive. PROUD MEMBER OF Team Starfire World BOINC |
Alinator Send message Joined: 19 Apr 05 Posts: 4178 Credit: 4,647,982 RAC: 0 |
Nothing strange there, it did exactly what it should have. The BOINC scoring rules for WU with 3 valid tasks is to throw out the high and low claims and grant the middle one. For 4 or more it throws out the high and low and grants the average of the remaining ones. I guess it's just been a long time since most people have seen a WU with 4 or more valid tasks in play. ;-) <edit> BTW, with what looks to be two CUDA hosts in the mix, you ended up getting a little 'premium' paid on the WU over what it would have been if paid for straight CPU tasks. :-) Alinator |
perryjay Send message Joined: 20 Aug 02 Posts: 3377 Credit: 20,676,751 RAC: 0 |
You're right, it has been a long time since I've seen 4 or more valid results. Oh, and I'm one of those Cudas. PROUD MEMBER OF Team Starfire World BOINC |
Raistmer Send message Joined: 16 Jun 01 Posts: 6325 Credit: 106,370,077 RAC: 121 |
Hmmm, just noticed something else now. It looks like they averaged them instead of giving the lowest credit. That's strange. Cause I OCing my GPU I trying to look on results regularly - now 1 inconclusive per 2 pages of results approx. All that I noticed in "definitive" state was failures of wingmans. Sometimes I meet CUDA wingman that totally broken. Unfortunately, current "quota" politics allows such host continue to trash results always w/o reducing its quota (so user can just not know what going on with his GPU and only wonder why RAC is so low). |
Stick Send message Joined: 26 Feb 00 Posts: 100 Credit: 5,283,449 RAC: 5 |
http://setiathome.berkeley.edu/workunit.php?wuid=435875813 The above AP workunit now has 3 "inconclusive" results (mine was the 3rd one). Anyone care to bet on whether the 4th will settle anything? |
elbea64 Send message Joined: 16 Aug 99 Posts: 114 Credit: 6,352,198 RAC: 0 |
I think it's very interesting as it looks like there are two stock apps that don't validate against each other. |
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