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Theory Application :
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Send message Joined: 27 Sep 08 Posts: 810 Credit: 655,511,100 RAC: 208,123    |
I just make them 8 core WU for the time being. |
 Send message Joined: 7 Feb 14 Posts: 99 Credit: 5,180,005 RAC: 0 
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https://lhcathome.cern.ch/lhcathome/result.php?resultid=245995393 Why did this wu fail, why did VM prematurely shut down and why not getting credits for this reason? |
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Send message Joined: 7 Feb 14 Posts: 99 Credit: 5,180,005 RAC: 0
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I guess maybe Virtualbox crashed. |
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Send message Joined: 2 May 07 Posts: 2125 Credit: 159,968,505 RAC: 38,628 
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When you take a deeper look to this task, slot1 stopped Hours earlier than slot2. Would change the preferences to 1 Cpu instead of 2. |
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Send message Joined: 7 Feb 14 Posts: 99 Credit: 5,180,005 RAC: 0
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It's not a real problem. That host has got 4 cores (8 threads) and 8GB RAM. It can run successfully 5, maybe 6, 1-cpu tasks. So I set it to run 4x2-cpus VMs to use less RAM. The best case: all the VMs run at 200% and it uses 8 threads and 4 cores The worst case: all the VMs run at 100% and it uses 4 threads and 4 cores. It's working good. |
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Send message Joined: 18 Dec 15 Posts: 1693 Credit: 104,864,927 RAC: 69,983
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for several hours now, all Theory tasks on several of my machines (1-core and 2-core) are running idle. No CPU usage at all. What kind of problem do we have here? |
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Send message Joined: 18 Dec 15 Posts: 1693 Credit: 104,864,927 RAC: 69,983
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for several hours now, all Theory tasks on several of my machines (1-core and 2-core) are running idle. No CPU usage at all. What kind of problem do we have here?one of these tasks has now been runnig for about 28 hours (and idle for the last 6-8 hours), another one for 25 hours. I guess they will fail at some point, won't they? |
 Send message Joined: 28 Sep 04 Posts: 682 Credit: 43,874,454 RAC: 16,510
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I think that the cut-off time is nowadays 36 hours. 
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Send message Joined: 7 Feb 14 Posts: 99 Credit: 5,180,005 RAC: 0
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Some theory tasks (idle or not) automatically end after 36 hours. Otherwise, try this: 1) Set Leave applications in memory while suspended unckecked  2) Suspend your idle tasks, check task slot number (N=0,1,2, etc...)  3a) Open your_boinc_data_directory/slots/N/vbox_checkpoint.xml, replace elapsed_time value with "129570.000000", then save 3b) Open your_boinc_data_directory/slots/N/boinc_task_state.xml, replace checkpoint_elapsed_time value with "129570.000000", then save   4) Resume your idle tasks They should end within 30 seconds. P.S. I don't know if you can skip some steps of my procedure. It always worked, so I didn't modify it. |
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Send message Joined: 18 Dec 15 Posts: 1693 Credit: 104,864,927 RAC: 69,983
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Luigi, thanks for the instructions - they worked well :-) |
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