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World Community Grid Forums
Category: Support
Forum: Suggestions / Feedback
Thread: Griding with or without HT |
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Thread Status: Active Total posts in this thread: 16
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
can't say I have ever seen a laptop get that hot. I keep mine at the highest for short burst 75c. Mosstly range between 68-72c at 100% 4 threads on my i5
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ryan222h
Senior Cruncher Joined: Sep 4, 2006 Post Count: 425 Status: Offline |
I did and I can't say that I noticed big difference and I missed seeing the 8 tasks :D My laptop is 80-85C (the gpu is also on full load (folding@home) so not problem there. My ex-laptop was on 100C ^^. I can't reduce the clock speed since the bios doesn't allow me to turn the turbo boost. i7-2630qm is very good cpu. I reach 700-800-pionts as average points which is very impressive if I compare to my old amd which struggled for 200points. I am not Griding 24h, only when am at the laptop. Having the CPU and GPU running at 100% continuously on a laptop is a very tall order for a laptop's thermal. I would try running one or the other instead. Also be aware your battery life will be diminished quickly within months with these high temps  |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
Thanks ryan for the tips :))
The battery is not inserted, so the laptop is running on AC. :) The laptop is 75-80 @2,4GHz. It gets down to 2,0 GHz when the gpu is on, and the temps are 80-85 which is okey and not much higher. As long as it's not 90 or more it's all good :) |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I suggest to use TThrottle especially for laptops.
I see that compared to other members, I keep my laptops cool. The I7 is set at 68 Cdeg, the newer I5 at 72 Cdeg. IMHO is not a good thing to have more than this temperatures. |
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Former Member
Cruncher Joined: May 22, 2018 Post Count: 0 Status: Offline |
I suggest to use TThrottle especially for laptops. I see that compared to other members, I keep my laptops cool. The I7 is set at 68 Cdeg, the newer I5 at 72 Cdeg. IMHO is not a good thing to have more than this temperatures. Of what I understood 90 is the limit before things begin to be damaged. if the cpu doesn't surpass 100C the cpu won't get damaged. When it comes to gpu it shouldn't be over 90C. I can't what the limits are. in a video I have seen 110C (gpu) before Windows shuts down the machine due to overheat. |
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Rickjb
Veteran Cruncher Australia Joined: Sep 17, 2006 Post Count: 666 Status: Offline Project Badges: 
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I only run on desktops, with HT ON when available.
CPUs generally run hotter with HT ON, since a bigger proportion of the chip is active. I've never measured the difference in real throughput, because that is very difficult. You would have to compare the averages of the counts of WUs crunched per time-period, not points awarded, because you will score many more points with HT than without. When the i7-920 was first released, member Movieman published his findings over at his Team XtremeSystems website in forum thread: Nehalem,One cpu to rule them all!. Crunching HCC only, HT increased his WU throughput by about 12%. Note that HCC uses integer arithmetic, while all or most other WCG projects use floating point, which he did not test. However, I think that HT should work best crunching a mixture of projects, especially a mix that contains some integer-intensive and some FP-intensive ones, and that greatly complicates measurements of WU throughput. --- Re. Cooling of Laptops: I have seen pictures of unattended laptops crunching away, tipped onto their sides to improve airflow across the top and bottom surfaces of the case. I haven't seen any numbers to show that it helps, so perhaps some of you could try it out and report your findings. |
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