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World Community Grid Forums
Category: Support
Forum: BOINC Agent Support
Thread: An OSX bug |
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Thread Status: Active Total posts in this thread: 146
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Forgot to ask this.. in energy saver, do you have the disk to sleep after a period of time? I think it's on "Put the hard disk(s) to sleep if possible", but I'll have to check next time I'm at work. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Just had to abort a faah workunit...
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Just had to abort a faah workunit... You don't need to abort the work unit you can just stop boinc and start it again and it will take off again. That's what I do anyway and it works for me. |
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Bearcat
Master Cruncher USA Joined: Jan 6, 2007 Post Count: 2803 Status: Offline Project Badges: 
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Forgot to ask this.. in energy saver, do you have the disk to sleep after a period of time? I think it's on "Put the hard disk(s) to sleep if possible", but I'll have to check next time I'm at work. Try this. Set hard disk to run but put screen saver on to 15 min or whatever you want, load up enough units to last 3 or 4 days, manually control connecting to WCG (disconnect when loading is complete). I had more stuck WU's running all 4 cores on my pro so dropped it to 3 and has been working fine since (I was in tiger then but kept it this way in leopard). With you running other apps, not sure but wondering if your running out of memory and having hickups if its writting to virtual memory. Take a look at activity and check your page outs to see if your having a high number there.
Crunching for humanity since 2007!
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Forgot to ask this.. in energy saver, do you have the disk to sleep after a period of time? I think it's on "Put the hard disk(s) to sleep if possible", but I'll have to check next time I'm at work. Try this. Set hard disk to run but put screen saver on to 15 min or whatever you want, load up enough units to last 3 or 4 days, manually control connecting to WCG (disconnect when loading is complete). I had more stuck WU's running all 4 cores on my pro so dropped it to 3 and has been working fine since (I was in tiger then but kept it this way in leopard). With you running other apps, not sure but wondering if your running out of memory and having hickups if its writting to virtual memory. Take a look at activity and check your page outs to see if your having a high number there. I've got 4 Gigs of RAM. It's a very rare day when the Activity Monitor records less than 2 Gigs of memory that is free, so I doubt it's that. I've switched off the "put hard disks to sleep if possible" just now. Again, it seems to me rather unlikely this is the cause of the problem, but it's worth a try. I've had BOINC running fine on my MacBook Pro for some time now. I think if I continue having to babysit BOINC to prevent it from getting stuck and wasting CPU time, I'm going to roll back the BOINC version to the one I have on my MacBook and see if that's any better. |
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Sekerob
Ace Cruncher Joined: Jul 24, 2005 Post Count: 20043 Status: Offline |
What if the science wants to write to your disk and it's asleep and can't somehow not spin it up or the spin up delay causing for the process to hang?
----------------------------------------Consider disk-sleep features bad, shortening life expectancy considerably.... and HD's are the part to treasure particularly if back up discipline is hmmmm.
WCG
Please help to make the Forums an enjoyable experience for All! |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Hello Fraz,
I have to agree with Sekerob. Spinning up a hard disk is the heaviest power draw in a normal computer system. It is the sort of thing you want to minimize. The Mean Time Between Failures shrinks dramatically if you cycle the disk drive on and off very often. The only time you might want to sleep a disk is when you are on battery power. Lawrence |
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Bearcat
Master Cruncher USA Joined: Jan 6, 2007 Post Count: 2803 Status: Offline Project Badges:
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Another thing to concider. When crunching, whats the temps reading inside? I have read in other forums that if the ram modules get really hot, you start having problems. No if its only boinc having problems and not other programs, then disregard. I use smcfan control to keep my mac pro cool and use istat widget to monitor my temps. Laptops always run hotter when constantly on. Just a thought to pass on.
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Crunching for humanity since 2007!
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
What if the science wants to write to your disk and it's asleep and can't somehow not spin it up or the spin up delay causing for the process to hang? Consider disk-sleep features bad, shortening life expectancy considerably.... and HD's are the part to treasure particularly if back up discipline is hmmmm. Hello Fraz, I have to agree with Sekerob. Spinning up a hard disk is the heaviest power draw in a normal computer system. It is the sort of thing you want to minimize. The Mean Time Between Failures shrinks dramatically if you cycle the disk drive on and off very often. The only time you might want to sleep a disk is when you are on battery power. Lawrence Yes... I am aware of these disk lifetime issues. It was just on the default setting after install. Anyway, I had high hopes that this "no disk sleeping" was curing the problem, as I didn't have a stuck work unit for an entire day. However, I've just had to unstick a workunit, so I guess the disk sleeping is not the issue. Another thing to concider. When crunching, whats the temps reading inside? I have read in other forums that if the ram modules get really hot, you start having problems. No if its only boinc having problems and not other programs, then disregard. I use smcfan control to keep my mac pro cool and use istat widget to monitor my temps. Laptops always run hotter when constantly on. Just a thought to pass on. Yes, I use smcfan control. I have the minimum fan speeds raised slightly (by 300 RPM each). The CPU temp rarely goes above 60 on my iMac, which is much better than my CoreDuo "Yonah" Macbook Pro, which got hot as hell - but miraculously still worked just fine. [Edit 3 times, last edit by Former Member at Apr 16, 2008 12:00:17 PM] |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Seem to be suffering much fewer work-unit hangs. Only had two in total since I switched off that stupid hard-disk "sleep if possible" power saving.
So, I guess you could call it a partial success  I don't mind unsticking the odd work unit every now and again. It was the several a day that was bothering me. |
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