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World Community Grid Forums
Category: Active Research
Forum: OpenPandemics - COVID-19 Project
Thread: OpenPandemics - GPU Stress Test |
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Thread Status: Active Total posts in this thread: 781
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kittyman
Advanced Cruncher Joined: May 14, 2020 Post Count: 140 Status: Offline Project Badges: 
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The kitties are not having difficulties with meowing at the server this morning. Seems pretty well sorted.
----------------------------------------Now these big WUs are something else though. Take a looooooooooong time for the kitties to munch on. Seems like the CPU has to pre-cook them for a long time before the kitties really get to munching with the GPU. Meow munch munch.  |
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lakotamm
Cruncher Joined: Jul 4, 2019 Post Count: 5 Status: Offline Project Badges: 
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In Windows Task Manager you need to look at CUDA and not 3D for how much load these work units are producing. Unfortunately I do not have such option. |
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Richard Haselgrove
Senior Cruncher United Kingdom Joined: Feb 19, 2021 Post Count: 360 Status: Offline Project Badges:
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Some of the later tasks are better. I saw OPNG_0018709_00127 going through in a much more reasonable time.
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Ian-n-Steve C.
Senior Cruncher United States Joined: May 15, 2020 Post Count: 180 Status: Offline Project Badges: 
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The 13510 series keeps 1 core of my AMD 1700 Ryzen busy full time. My NVidia GTX 1060 only run sometimes. So CPU limited. 1 case now takes 14 minutes (older cases about 4-5 minutes). nvidia openCL applications always keep a core at 100%. mainly for GPU polling IIRC. this is normal behavior and doesn't necessarily mean a CPU bottleneck. AMD openCL does the same thing, but uses less CPU support than nvidia, usually 0.25-0.33 of a CPU thread.  EPYC 7V12 / [5] RTX A4000 EPYC 7B12 / [5] RTX 3080Ti + [2] RTX 2080Ti EPYC 7B12 / [6] RTX 3070Ti + [2] RTX 3060 [2] EPYC 7642 / [2] RTX 2080Ti |
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zdnko
Senior Cruncher Joined: Dec 1, 2005 Post Count: 225 Status: Offline Project Badges: 
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Scheduler request failed: Couldn't connect to server Project communication failed: attempting access to reference site Internet access OK - project servers may be temporarily down. Are you getting this multiple times in a row or once and then it works? Reason I ask is that we are updating the load balancer which requires it to restart. If you are getting it consistently then we may need look into the problem more. 3 times in half an hours, not so worrying.  |
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DavePDX
Cruncher USA Joined: Jan 1, 2009 Post Count: 2 Status: Offline Project Badges: 
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In Windows Task Manager you need to look at CUDA and not 3D for how much load these work units are producing. Unfortunately I do not have such option. I run BOINC under Linux but I dual boot to Windows 10 Pro for gaming purposes and I have seen the CUDA listing in Task Manager. I became curious as to why you weren't seeing it. Maybe this post has an answer for you: https://answers.microsoft.com/en-us/windows/f...38-4f3d-9352-c3a842dc142b  |
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goben_2003
Advanced Cruncher Joined: Jun 16, 2006 Post Count: 145 Status: Offline Project Badges:
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Sorry Ian-n-Steve, I am going to have to disagree. It is not FUD or blown out of proportion. I think that there is a very wide distribution of total writes ratings across SSDs. Using the samsung 860 2tb and crucial mx500 2tb as examples: The other option with consumer grade SSDs is to use the software from the manufacturer to "over-provision" the space reserved on the SSD for wear-leveling. You start out with a smaller effective disk size but, in theory, it will last longer.Total bytes written ratings: samsung: 2400 TB(2.4PB) crucial: 700 TB max MB/s to reach 10 years: samsung: ~7.61 crucial: ~2.22 Some people are seeing higher writes than either of those SSDs are rated for to last 10 years. I do not currently have server grade SSDs like nanoprobe has. There is a reason I run boinc off of a ramdisk these days - and it is not FUD. Here is a good article from Samsung on this subject I have TRIM enabled, which is dynamic OP. OS notifies the SSD when a block no longer contains valid data so it can be used the same way that the real OP is. Not that increasing OP is bad, but it does not seem necessary if TRIM is enabled and you leave plenty of disk space free.  |
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lakotamm
Cruncher Joined: Jul 4, 2019 Post Count: 5 Status: Offline Project Badges:
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Thanks! That is correct, I have it enabled.
This laptop is not yet supported well by Linux kernel, otherwise I would be using it as well... |
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Jorlin
Advanced Cruncher Deutschland Joined: Jan 22, 2020 Post Count: 89 Status: Offline Project Badges: 
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... All no problem for me. But for all these cases I see no wingman case. They all get validated with about 1600 points. But I don't care about the points, but do care if this is useful work? With no Wingman checking the results, can I be sure these results are indeed valid/useful? As i understand it: when you start a new project you will always get a wingman. If you deliver enough valid results over time, your machine is considered trustworthy and you won't be validated by using a wingman but just the server checking the result. This frees up overall calculation time. Other projects do it the same way (not all i think).  |
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spRocket
Senior Cruncher Joined: Mar 25, 2020 Post Count: 274 Status: Offline Project Badges: 
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I've been getting a few intermittent connection failures lately as well. Hmm, a bunch of stuck downloads as well. Just restarted the transfers and they cleared up.
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