New version 0.04 of DENIS-Fiber_beta with checkpoints
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New version 0.04 of DENIS-Fiber_beta with checkpoints
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Send message Joined: 16 Jul 15 Posts: 15 Credit: 6,451,762 RAC: 3,202     
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The released version 0.04 from this morning seems to have working checkpoints - Great! But the tasks also have very long estimated runtimes . . . with an extended deadline up to 22.1 days. |
 Lanius collurioSend message Joined: 5 Apr 25 Posts: 53 Credit: 255,016 RAC: 9,143  
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Hmm, I didn't manage to get any tasks, even though DENIS is set to 99,99% resource share. Resetting or manually dropping and re-adding the project didn't help either, I couldn't force BOINC to download the new application. Edit: I think I found the explanation. There were only 2000 tasks sent out and none of my rigs was actively bugging the project scheduler in the few seconds that they were available.  
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ivanbisimbrero Send message Joined: 21 Nov 24 Posts: 21 Credit: 63,260 RAC: 774 |
Hello! That the work packages of this version take longer than usual is completely deliberate. For a first test we have launched 1000 tasks, with a simulation time per configuration of about 100 seconds (until now, they were being 5 to 10 seconds). This was done to test the effectiveness of the checkpoints, so that we can get more realistic simulation results thanks to the checkpoints. We will keep you informed. Thank you very much. Ivan. |
rilian Send message Joined: 21 May 15 Posts: 31 Credit: 869,420 RAC: 10,201 
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That the work packages of this version take longer than usual is completely deliberate. Hi Ivan, do you require us to suspend work unit, resume, quit boinc manager, launch boinc manager for this test ? PS: on my tasks i now see CPU time = 09:13:00 CPU time since last checkpoint = 00:00:13 ... -- I crunch for Ukraine  
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 Send message Joined: 19 Jun 24 Posts: 5 Credit: 186,233 RAC: 0
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You can do all that on your own. Easy enough to check the checkpoint file in the slot of a running task and see whether it checkpoints properly under all stopping/suspending conditions. |
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Lanius collurio Send message Joined: 5 Apr 25 Posts: 53 Credit: 255,016 RAC: 9,143
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New work incoming! Grab it while it's hot!  Estimated runtime is about 20x longer than for v0.03
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ivanbisimbrero Send message Joined: 21 Nov 24 Posts: 21 Credit: 63,260 RAC: 774 |
Hi! Estimated runtime is about 20x longer than for v0.03 Yes! But it's not a performance issue, is due to the simulation time that we're sending via config (now 100 seconds vs in previous version, that we're sending simulations of 5-10 seconds). Iván. |
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Lanius collurio Send message Joined: 5 Apr 25 Posts: 53 Credit: 255,016 RAC: 9,143
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I know, I was just reporting the order of magnitude so you guys can compare it to other results and estimates :) I have a miniPC dedicated to running BOINC that has 8 identical cores (Ryzen 7 5825U, dynamically throttled to 70 C) so it's good for benchmarking runtimes. From about 0:48 with v0.03 the current runtime estimates are 17:12. My personal laptop right now estimates about 26 hours for two of the running tasks, and 55-59 hours for two different tasks. It has a Core 5 Ultra 125H with two very different core types, all limited to base speed (no turbo at all). I've seen a similar 2x difference in runtime with other projects as well, so it's safe to assume that everything is running normally, with a big efficiency difference between the two core types. 3 other laptops all have single-type cores (i5-6200U, i7-5600U, i7-1165G7) and current runtime estimates also range between 20-25x compared to v0.03.
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rilian Send message Joined: 21 May 15 Posts: 31 Credit: 869,420 RAC: 10,201
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I have "request tasks to checkpoint at most" setting set to 60 seconds, and i observe it checkpoints about every 80-90 sec -- I crunch for Ukraine
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Lanius collurio Send message Joined: 5 Apr 25 Posts: 53 Credit: 255,016 RAC: 9,143
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Granted credits are in line with expectations, from 20-25 up to 450-500.
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Lanius collurio Send message Joined: 5 Apr 25 Posts: 53 Credit: 255,016 RAC: 9,143
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There was a new batch of 1000 WUs/2000 tasks, but because of its small size it pretty much disappeared instantly. I only managed to grab 16 of them on my dedicated MiniPC. On a side note, I got a resent task for a WU in which both initial tasks came back inconclusive. Anyone else noticed such resends? Would be interesting if the team told us what causes this phenomenon.
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Lanius collurio Send message Joined: 5 Apr 25 Posts: 53 Credit: 255,016 RAC: 9,143
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And as always, double post when I'm on my phone... Please delete... Thx!
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Send message Joined: 6 Mar 23 Posts: 71 Credit: 2,442,785 RAC: 1,309
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There was a new batch of 1000 WUs/2000 tasks, but because of its small size it pretty much disappeared instantly. I only managed to grab 16 of them on my dedicated MiniPC. It was so small I did not get any. On a side note, I got a resent task for a WU in which both initial tasks came back inconclusive. Anyone else noticed such resends? Would be interesting if the team told us what causes this phenomenon. No resends either. 
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