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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: bionc task priority in ubuntu |
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Thread Status: Active Total posts in this thread: 4
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I need a bath
Senior Cruncher USA Joined: Apr 12, 2007 Post Count: 347 Status: Offline Project Badges: 
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please tell me or point to FAQ to tell how to increase task priority of boinc processes in Ubunto. I can change the priority in the system monitor but it keeps resetting back to 19.
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
Changing Nice / Priority has effect... seconds maybe on the total task duration, which is why you wont find any FAQ. The priority is hard coded into the BOINC science app wrapper.
----------------------------------------And on CEP2, well a few days ago we discussed the special. It seems this science starts a new 'job' at OS level i.e. a new PID will show in the Top view after each checkpoint, 16 wrapped together in 1 task.
WCG
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I need a bath
Senior Cruncher USA Joined: Apr 12, 2007 Post Count: 347 Status: Offline Project Badges:
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I see. Well, the reason I wanted to change the priority/Nice is that doing so allowed me to run more CEP2 units than 2. I have 3 going easily now and had 4 for a while until the checkpoints reset the priority back down to 19; then the dreaded zero status errors began- on both CEP2 and HCC units.
----------------------------------------For no good reason I wonder if not having a swap file on account of the live CD matters. It shouldn't because I have plenty of memory, but ... |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
sudo swapon and sudo swapoff in a terminal window will put out a screen of info what you can do with these commands.
----------------------------------------sudo swapon -s gave as output Filename Type Size Used Priority /dev/sda6 partition 3618808 42632 -1 42MB used of 3.5GB when presently 3 CEP2 and 1 HCMD2 is running concurrently. The miracle search machine kicked out: SwapFaq Introduction * This FAQ is aimed at Linux novices. https://help.ubuntu.com/community/SwapFaq edit: For longer under Windows 7 I've used Process Lasso to steer affinities and priorities for BOINC processes in an automated way. No idea if such tools would exist for Linux.
WCG
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