Change required in how boinc works?

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Ashish H Kadam

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Joined: 23 Sep 11
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India
Message 40313 - Posted: 23 Sep 2011, 9:19:45 UTC

Hey I just observed that BOINC, even if limited to 10% CPU usage, reduces the temperature to certain amount. But still whenever it runs it utilizes the CPU to 100% because of which the temperature shoots to around 80 degree Celsius.
What I fear is that this sudden change of temperature which keeps happening frequently may damage the CPU.
Whereas I also use folding@home, and what they do is, use the CPU at a constant 10% due to which the temperature hovers around 60 to 65 degree Celsius.
Which I think is ok.
Please let me know what are your opinions.
Thank you. :)
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Profile Jord
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Netherlands
Message 40314 - Posted: 23 Sep 2011, 10:01:02 UTC - in response to Message 40313.  

When you use the "Use at most X% CPU time" option, this tells BOINC to suspend & resume the science application(s) according to a set rhythm per 10 seconds. When set to 50%, it will suspend 1 second, run 1 second. When set to 80%, it will run 4 seconds, be 1 second suspended. At 10% it will run 1 second and be 9 seconds suspended. All timings are at this FAQ.

It was chosen to use suspend/resume, so that it is platform independent.
The method that Folding uses is one that works on Windows only. It won't work that way on the Mac or on Linux. Since BOINC is a single source code -> multiple operating system application, it can't depend on special OS only things.

Now you can download the source code for the client and compile from that for either Windows, or Linux, or Mac OS X (or all three) and have it work exactly the same between all three platforms, without needing extra hoops to jump through.
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Ashish H Kadam

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Message 40338 - Posted: 24 Sep 2011, 3:50:59 UTC - in response to Message 40314.  

Okay, I got your point, but what I am asking is, I don't want it to pause for some seconds and then run at 100% for a few seconds.
What I want is it to run at 10% the whole time. That way the temperature does not drastically increase and decrease. It remains constant. That would be more preferred by me.
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Claggy

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Message 40343 - Posted: 24 Sep 2011, 8:53:35 UTC - in response to Message 40313.  

Rather than limiting the CPU usage to limit the Temperature, how about fix the cooling instead?

Claggy
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Ashish H Kadam

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Message 40356 - Posted: 25 Sep 2011, 8:11:14 UTC - in response to Message 40339.  


No problem. Google for efmer tthrottle. TThrottle will do exactly what you want.

Is there a walkthrough for TThrottle, I don't seem to understand what settings to do, and all.. :(
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Ashish H Kadam

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Message 40357 - Posted: 25 Sep 2011, 8:12:34 UTC - in response to Message 40343.  

Rather than limiting the CPU usage to limit the Temperature, how about fix the cooling instead?

Claggy


I already have a laptop cooler under my laptop! :)
If only I had liquid nitrogen cooling, then I would run boinc 100% 24/7.. :D
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Profile Jord
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Message 40359 - Posted: 25 Sep 2011, 10:53:22 UTC - in response to Message 40356.  

Is there a walkthrough for TThrottle, I don't seem to understand what settings to do, and all.. :(

http://www.efmer.eu/boinc/tthrottle_manual.html, while for more questions, ask at http://www.efmer.eu/forum_tt/index.php. BOINC doesn't develop this program, Fred of Efmer does.
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Message boards : Questions and problems : Change required in how boinc works?

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