Message boards :
Number crunching :
Macbook pro, intel HD4000 gpu, and seti
Message board moderation
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Johny Send message Joined: 19 Nov 99 Posts: 22 Credit: 22,175 RAC: 0 |
Hello! get in my paws a mid 2012 MacBook Pro 13" ( i5 2.5 ghz, 16 gb ram, 256 gb ssd, intel hd4000 video. install latest boing, and start setiathome. very, very bad. almost useless. heavy gnu usage in that configuration overheat CPU - i get about 3 - 5% CPU load, and CPU /GPU temperature stay about 97 - 99 degrees of celsius - almost water boiling point, and maximum allowable that type cpu temp. that was too much. and if cpu tasks dedication cpu time to project you can regulate, then cpu not - you can turn GPU on or off only. and turned on it have so much energy consumption, to almost melting all cpu package, what not good at all. i finish crunch always downloaded tasks, and then set to cpu only. what is situation with desktop variants and integrated in cpu video? it also rise temps to very high on GPU-only load?[/img] |
Johny Send message Joined: 19 Nov 99 Posts: 22 Credit: 22,175 RAC: 0 |
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Zalster Send message Joined: 27 May 99 Posts: 5517 Credit: 528,817,460 RAC: 242 |
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Johny Send message Joined: 19 Nov 99 Posts: 22 Credit: 22,175 RAC: 0 |
MacBooks no need cooling pads. examine a cooling system of MacBooks, and see where is air intake. yet, question is not about that, but about integrated in CPU die GPU, who transform too much energy in heat... |
OGM Send message Joined: 14 Apr 15 Posts: 12 Credit: 1,001,458 RAC: 0 |
That 50ºC "ambient temperature" is very strange.... could the fan and/or air intake be in need of a cleanup? |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
Hello! You can regulate how many tasks are run on the CPU very easily using the Advanced view/Tools/Computing preferences/processor usage. Down at the bottom you will see the settings "On multiprocessor systems use at most _____ % of the processors." Try changing that setting to 50% instead of 100% On that machine the Intel iGPU HD4000 isn't much faster than the CPU running the AVX App, especially when only running 2 CPU tasks. The iGPU is also known to produce mostly Inconclusive results. I would suggest Not running the Intel iGPU and instead just running 2 AVX CPU tasks. If the temperature is tolerable maybe running 3 AVX CPU tasks. On most machines the AVX CPU App is much faster than the Stock CPU App, but you will have to install it manually. The App is here, http://www.arkayn.us/forum/index.php?topic=191.msg4369#msg4369. All that is required is to place the files in the /Library/Application Support/BOINC Data/projects/setiathome.berkeley.edu folder and then reinstall BOINC to set the correct file permissions. One package has another iGPU App which isn't any better than the Stock iGPU App, but also has the AVX CPU App. The other package only contains the AVX CPU App. If you install the one with the iGPU App you will have to Disable the GPU in the preferences to just use the AVX CPU App. |
Johny Send message Joined: 19 Nov 99 Posts: 22 Credit: 22,175 RAC: 0 |
>That 50ºC "ambient temperature" is very strange yesterday opened it up and clean with compressed air - there is a bit, not much, dust, but now all is clean. i think "ambient" sensor is inside of case, as so it shows temperature inside case. if there is good energy consumption, and cooler not work on max speed, there always will be much greater temp, than in room. now in room is about 21 celsius, outside is winter ( sic!) with about -4 celsius. |
OGM Send message Joined: 14 Apr 15 Posts: 12 Credit: 1,001,458 RAC: 0 |
>That 50ºC "ambient temperature" is very strange Ok, so it's not dust. Could it be needing new thermal paste? now in room is about 21 celsius, outside is winter ( sic!) with about -4 celsius. Well, there's a possible solution to the overheating problem. :P |
HAL9000 Send message Joined: 11 Sep 99 Posts: 6534 Credit: 196,805,888 RAC: 57 |
>That 50ºC "ambient temperature" is very strange What are temp when idle? SETI@home classic workunits: 93,865 CPU time: 863,447 hours Join the [url=http://tinyurl.com/8y46zvu]BP6/VP6 User Group[ |
Bil Send message Joined: 27 Jan 01 Posts: 76 Credit: 1,887,795 RAC: 0 |
about 45 celsium on CPU. 51 degree on memory module 1. when setiathome running in cpu mode, 50% of cpus and 35% load ( 2 cpu at 35% each) cpu temp shows about 60 celsium - good enought. there is no problem with cpu in general - problem is with GPU heat generation amount, when use hd4000 for crunch... |
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