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World Community Grid Forums
Category: Active Research
Forum: Mapping Cancer Markers Forum
Thread: Too many Pending Validation |
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Thread Status: Active Total posts in this thread: 124
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges: 
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While the OPN people are complaining about the large number of PV's, I looked at my MCMs.
----------------------------------------I run six at a time on an i7-4771 (Win7 64-bit), and have 68 PV (and twice as many valid), with no invalid or errors. I don't know if this is a new phenomenon, but does not seem right to me. [Edit 1 times, last edit by Jim1348 at Jun 21, 2020 8:20:54 PM] |
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Falconet
Master Cruncher Portugal Joined: Mar 9, 2009 Post Count: 3294 Status: Offline Project Badges: 
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I have 13 pages of valid MCM tasks and 3 pages of MCM tasks in PV state.
----------------------------------------I only began running MCM again last Friday but I think it looks okay. AMD Ryzen 5 1600AF 6C/12T 3.2 GHz - 85W AMD Ryzen 5 2500U 4C/8T 2.0 GHz - 28W AMD Ryzen 7 7730U 8C/16T 3.0 GHz |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges:
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Thanks. A 50% backlog may be reasonable. I will let it go on, unless they start growing much beyond that.
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yoerik
Senior Cruncher Canada Joined: Mar 24, 2020 Post Count: 413 Status: Offline Project Badges:
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While the OPN people are complaining about the large number of PV's, I looked at my MCMs. I run six at a time on an i7-4771 (Win7 64-bit), and have 68 PV (and twice as many valid), with no invalid or errors. I don't know if this is a new phenomenon, but does not seem right to me. are they PV because of the validator - or because they're quorum 2? In other words - is it a volunteer problem, or a WCG problem? Because I don't know what you could expect WCG to do besides shorten the MCM deadlines.  |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges:
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They are:
Minimum Quorum: 2 Replication: 2 The oldest were sent out on June 13, but they returned with errors or no reply. So I suppose that is what you could expect. |
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yoerik
Senior Cruncher Canada Joined: Mar 24, 2020 Post Count: 413 Status: Offline Project Badges:
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yeah - I understand the frustration, I certainly experience it too, to a lesser extent. However - it's up to the whims of volunteers - there's not much the team can do beyond adjusting deadlines, which could hurt the project. It all depends on the project needs.
----------------------------------------I find most of my PV are always Android devices - but that's because WUs run so much longer on android devices due to lack of CPU power, or lack of cooling - or both in some cases. I agree that it's too much - but it's not under your control, nor the WCG team. It's all on volunteers - if their devices are configured in a way that generates errors - and if they're crunching in a way that doesn't harm the grid through delaying results. Back in May - I had a WU that took almost a month to Validate because of so many aborted/no replies. |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges:
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All true enough, and I normally don't worry about it, or even notice. But other things being equal, I would prefer projects that don't require validation at all, for maximum efficiency. But if the scientists need it, we do it. Thanks.
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yoerik
Senior Cruncher Canada Joined: Mar 24, 2020 Post Count: 413 Status: Offline Project Badges:
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mhm. We can only trust that the minimum quorum is there for a good scientific or logistical reason.
----------------------------------------I'm sure if we searched the forums hard enough we could find some explanation - I'll take a quick look rn. If I find anything, I'll edit this comment. [Edit 1 times, last edit by yoerik at Jun 21, 2020 11:44:16 PM] |
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Jim1348
Veteran Cruncher USA Joined: Jul 13, 2009 Post Count: 1066 Status: Offline Project Badges:
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OPN samples the work from each machine. If it is OK, your machine is marked as "trusted". That eliminates the necessity for validation for a while, though they check it again periodically.
https://www.worldcommunitygrid.org/forums/wcg/viewpostinthread?post=630788 That would be a big help, if they could do that here. |
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yoerik
Senior Cruncher Canada Joined: Mar 24, 2020 Post Count: 413 Status: Offline Project Badges:
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OPN samples the work from each machine. If it is OK, your machine is marked as "trusted". That eliminates the necessity for validation for a while, though they check it again periodically. https://www.worldcommunitygrid.org/forums/wcg/viewpostinthread?post=630788 That would be a big help, if they could do that here. I spent 20 minutes searching the MCM forums - it seems like the quorum 2 has been here since it started. I haven't been able to find explicit rational as to why it's 2 for everyone - but the admins including uplinger made it clear in the posts I found discussing quorum, that it was necessary. The why - they'll need to reveal. |
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