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Category: Support
Forum: GPU Support Forum
Thread: HCC (ati_hcc1) all tasks running on high priority |
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Thread Status: Active Total posts in this thread: 6
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zaschf
Advanced Cruncher New Zealand Joined: Jan 28, 2009 Post Count: 61 Status: Offline Project Badges: 
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Just this afternoon all HCC (ati_hcc1) tasks started to run at High priority even though the reported dealines are 30 April +
----------------------------------------The strange thing is they are all ending up in PV. Why the rush?
Ubuntu 22.04.1 LTS [Linux 5.15.0-47-generic]
CPU: Intel Core i7-9700 @3.00GHz x 8 GPU: NVIDIA GeForce RTX2060 Rev. A plus a mighty Raspberry PI 4 |
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zaschf
Advanced Cruncher New Zealand Joined: Jan 28, 2009 Post Count: 61 Status: Offline Project Badges:
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Adding to my last, I now see the tasks tripping over each other.
----------------------------------------One is running happely at High priority and then the next 'ready to start' jumps in at high priority pushing the first one to 'Wait to run'. What's going on down here? I'll leave it over night before I start mashing about with this.
Ubuntu 22.04.1 LTS [Linux 5.15.0-47-generic]
CPU: Intel Core i7-9700 @3.00GHz x 8 GPU: NVIDIA GeForce RTX2060 Rev. A plus a mighty Raspberry PI 4 |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
what is your cache size?
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello zaschf,
The BOINC scheduling algorithm is being constantly tweaked swo you should include the BOINC version when you ask a question about it. Different versions can be very different and none are really attractive. In general, once it feels that something might not finish in time, it runs a bunch for short periods in order to estimate how long they are really likely to take then suddenly picks an arbitrary run order that it thinks might work. This really looks puzzling and certainly does not seem to be optimal. The way to avoid this is to keep a fairly short cache. Even this does not work if it suddenly decides that the tasks will take a long time to compute. Lawrence |
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zaschf
Advanced Cruncher New Zealand Joined: Jan 28, 2009 Post Count: 61 Status: Offline Project Badges:
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I'm running boinc 6.10.58 and interestingly, I've just reduced my cache from 1 day to 0.5
----------------------------------------We'll see what happens. Thanks, Frits.
Ubuntu 22.04.1 LTS [Linux 5.15.0-47-generic]
----------------------------------------CPU: Intel Core i7-9700 @3.00GHz x 8 GPU: NVIDIA GeForce RTX2060 Rev. A plus a mighty Raspberry PI 4 [Edit 1 times, last edit by zaschf at Apr 23, 2013 5:00:52 AM] |
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zaschf
Advanced Cruncher New Zealand Joined: Jan 28, 2009 Post Count: 61 Status: Offline Project Badges:
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Last update!
----------------------------------------I've aborted ALL ati_hcc1 tasks. They were all deemed invalid while normal HCC tasks are valid. Not much point in processing with the GPU when the result is useless. I was using the 'Radeon HD 6470M' on my HP laptop.
Ubuntu 22.04.1 LTS [Linux 5.15.0-47-generic]
CPU: Intel Core i7-9700 @3.00GHz x 8 GPU: NVIDIA GeForce RTX2060 Rev. A plus a mighty Raspberry PI 4 |
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