Message boards :
Number crunching :
Some task run longer than usual
Message board moderation
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 Send message Joined: 22 Oct 18 Posts: 19 Credit: 3,186,503 RAC: 0  |
Hello, I noticed that some of my tasks run for nearly 3 hours compared to the usual 1h 15m, approximately. This is happening on the same Linux host with i3-2100 CPU. Any particular reason why? 
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 Krzysztof Piszczek - wspieram ... Send message Joined: 4 Feb 15 Posts: 846 Credit: 144,180,465 RAC: 0  |
Probably you got new work units (batch _283_) which work on new computation data set. Krzysztof 'krzyszp' Piszczek Member of Radioactive@Home team My Patreon profile Universe@Home on YT |
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Send message Joined: 22 Oct 18 Posts: 19 Credit: 3,186,503 RAC: 0 |
Probably you got new work units (batch _283_) which work on new computation data set. Thanks, Krzysztof. Is this one from a new batch? universe_bh2_180328_263_7626907374_20000_1-999999_915200_1
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Krzysztof Piszczek - wspieram ... Send message Joined: 4 Feb 15 Posts: 846 Credit: 144,180,465 RAC: 0 |
No, this is "old" one... New ones have "_283_" instead of "_263_" in name. Also, soon the number will increase as this is batch number ascending on every task generation. Krzysztof 'krzyszp' Piszczek Member of Radioactive@Home team My Patreon profile Universe@Home on YT |
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Send message Joined: 4 May 19 Posts: 10 Credit: 13,588,667 RAC: 0  |
You are true i noticed the same with Windows 10 but i tell me one question I compute the whole day with 44 processors and i have 529 tasks solved in one day So i came to 44 tasks solved every 2 hours The server say that 100 tasks are solved in 2 hours and 6 minutes and there are 2200 user connected at the project So i tell me truly one question: Is the server saying true or the other make only a few work for universe@home I am in a trouble! Best Regards Guy PFLIEGER France |
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Krzysztof Piszczek - wspieram ... Send message Joined: 4 Feb 15 Posts: 846 Credit: 144,180,465 RAC: 0 |
You have to remember that for most users this project isn't only one on their machines :) Also, I can use more then 140 threads but usually only one of my host compute WU's all day :) Also, on my ARM machine 1 new WU needs about 12 hours to finish. Edit: In last 24 hours was finished 116'000 work units. |
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Send message Joined: 28 Feb 15 Posts: 253 Credit: 200,562,581 RAC: 0 |
It is a clear difference here on an i7-8700 (Ubuntu 18.04). The "263" take 36 minutes. The "283" take 2 hours. I am glad for the longer ones actually. |
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Send message Joined: 4 May 19 Posts: 10 Credit: 13,588,667 RAC: 0 |
116000/24=4833 tasks solved in one hour one tasks solved every 1,38second 100 tasks solved every 134.25second 100 tasks solved every 0.0034 hours There is truly a problem with the server Best Regards Guy PFLIEGER France |
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Send message Joined: 4 May 19 Posts: 10 Credit: 13,588,667 RAC: 0 |
other way to look the problem: The server receive every 24 hours 116000 tasks i compute every day 529 tasks the server says 100 tasks computed every 2.09 hours so the true value of my percentage is: (529/116000)*100=0.4560% If i look the server i do: 44 tasks every 2 hours so the percentage is a litle higher as 44% Best Regards Guy PFLIEGER |
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Send message Joined: 21 Feb 15 Posts: 83 Credit: 873,439,097 RAC: 0 |
My Odroid-N2 (ARM64 with Ubuntu 18.04): The "263" take 2 hours. The "283" take 6 hours. |
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Send message Joined: 2 Jun 16 Posts: 169 Credit: 317,253,046 RAC: 0 |
Credit is going to plummet since they both receive the same 666.67 credit. Gridcoin might go elsewhere. |
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Send message Joined: 11 Mar 15 Posts: 37 Credit: 271,242,973 RAC: 0 |
I have a small pile of android devices that have been happily crunching universe for years. One of the faster ones(for android) used to average a WU in about 6 - 8 hours, it now averages 24hrs +. And as for the slowest android devices I run here? err If one of the new WU ever finishes i'll let you know. So far after 35 hrs it's 74% complete.. Oh well I guess that's one way to reduce load on the servers :( |
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Send message Joined: 15 Dec 15 Posts: 7 Credit: 253,481,367 RAC: 0 |
Credit is going to plummet since they both receive the same 666.67 credit. Gridcoin might go elsewhere. Triple the work is the same as reducing the compensation 66% for the same work.... Getting $150.00 an hour going down to $50.00 per hour? I'll be finding myself a new job...... |
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Send message Joined: 18 May 17 Posts: 16 Credit: 3,215,924 RAC: 0 |
Is a credit increase planned? Proportionally, a WU would be worth just shy of 2000 right now... Of course, this is based on compute time not number of operations. Perhaps the workload isn't optimized and is leaving some parts of the silicon idle during some cycles depending on architecture. Did anyone notice any difference in number of gigaflops reported in the properties section of the WUs? |
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Send message Joined: 18 May 17 Posts: 16 Credit: 3,215,924 RAC: 0 |
For now I will switch work to another project until this gets settled I guess... |
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Send message Joined: 28 Feb 15 Posts: 253 Credit: 200,562,581 RAC: 0 |
I never looks at credits and have no idea what they are. But I just added another machine anyway. |
 Send message Joined: 24 Feb 15 Posts: 32 Credit: 609,507,165 RAC: 0 |
I run 3 x Threadrippers, 2 x 8700K and 17 x ARM machines at Universe right now (188 threads). I do not mind if the wu's are larger and take longer to run but you need to immediately adjust credits proportionally. Otherwise participation will plummet. Of course if that is acceptable to you, then so be it. Cheers |
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Krzysztof Piszczek - wspieram ... Send message Joined: 4 Feb 15 Posts: 846 Credit: 144,180,465 RAC: 0 |
I think, we give too much credits recently. Seriously, at the time when I set credit it takes 6 hours to finish on single core on i7 CPU. Recently, some tasks finish in 18 minutes on same machine. I really don't like to be a person, who make "inflation" on BOINC projects... Krzysztof 'krzyszp' Piszczek Member of Radioactive@Home team My Patreon profile Universe@Home on YT |
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Send message Joined: 24 Feb 15 Posts: 32 Credit: 609,507,165 RAC: 0 |
I think, we give too much credits recently. Seriously, at the time when I set credit it takes 6 hours to finish on single core on i7 CPU. OK, it is your project but my machines. I have moved them to Einstein. Good luck! |
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Send message Joined: 28 Feb 15 Posts: 253 Credit: 200,562,581 RAC: 0 |
I really don't like to be a person, who make "inflation" on BOINC projects... I like that attitude myself. It gives me more confidence in the science too, which is why I am here. Keep up the work, and I will do it. |
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