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Former Member
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Re: Overheating here!

Not arguing with anyone here - just another data point....

If I run the agent on my laptop it heats to the point where it triggers some thermal protection and powers the whole thing off!

I know this is not the fault of WCG though - the same thing happens when I work too hard or a virus scan tries to run. I'm glad I have an order in for a new one :-)

Brian.
[Nov 26, 2004 4:49:49 AM]   Link   Report threatening or abusive post: please login first  Go to top 
joetaylen
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Re: Overheating here!

On your laptop, can you change the performance from max performance to max battery while it is pluged in? If you can, that will reduce the heat generated while running the program. I can do this on mine (Compaq)
[Nov 26, 2004 3:45:24 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
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Re: Overheating here!

had some problems a few days ago on my desktop overheating, well not really just pushing to 69C which is a bit close to the 71c threshold intel says my procesor has. But at the time my AC was out and ambient temp in the house was around 80+F so wasn't getting cool air in to cool everything down. Since AC was fixed have had no problems and have been runnning around 66C idle for me is 38C. My laptop has not even come close to overheating even when it was hot in here. It's an 1.7 P4m (or centrino) so speed steping is standard don't know if thats why I have never overheated on that or not.

But with the download times I'm getting my comp gets a nice 6 hour break between each job which is sad since the job it's self tends to only take 13-20 hours.

But yeah if your worried about melting your processor you either have a AMD (you cannot melt and intel unless you screwed with the bios) or you need to put it back in the box and never touch it.
[Nov 26, 2004 4:29:14 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
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Re: Overheating here!

I have an IBM T40 laptop (1.6 GHz) running for 7 days straight at 100% with no overheating, no new noises, it just does the tasks WCG sends it. I also have a Dell Server (2.4 GHz) and a Dell Desktop (1.0 GHZ) as well as a clone PC running a PII-266. No problems with any of these. This Myth should be tested on MythBusters, it doesn't appear to be accurate. cool
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[Edit 1 times, last edit by Former Member at Nov 26, 2004 7:34:33 PM]
[Nov 26, 2004 5:59:40 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Former Member
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Re: Overheating here!

I run the program on my AMD Athlon XP machine 24/7.... it has yet to melt down although the processor does run at temps up to 55oc
[Nov 26, 2004 8:12:10 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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Hot computers and 100% CPU utilization

Here is a short 101 on this subject. Later, we will post a lengthier FAQ item. The CPU in computers is actually 100% utilized no matter what is going on, except when it is powered off, or stopped. There is a secret "idle" task running in the background that runs at lower priority than everything else in the computer, even lower than the grid agent. The idle task counts up the percentage of the time it runs and calls this "idle time" and reduces the reported CPU utilization figure accordingly. Neither the grid agent nor the idle task will run if your computer has other work to do. However, since the grid agent runs at slightly higher priority than the idle task, the idle task won't run at all and thus report that your computer is always 100% utilized. These two tasks account for the otherwise remaining unused cycles of your CPU.

Most modern computers have the ability to change clock speeds instantaneously. When the system sees that the idle time task is getting serviced a lot, it lowers the clock speed of the CPU to consume less electrical power and consequently generate less heat. If it sees that the idle task is not getting a lot of the of the CPU time, it raises the CPU clock speed so that the tasks doing useful work run faster. The activity that creates most of the heat inside the CPU chip is the many transitions of logic gates between "0" and "1" values. There are many millions of logic gates on modern CPU chips and when you have one running at a 1.5 Ghz clock speed, there are 1.5 billion opportunities per second for the millions of logic gates to have transitions. Even though each transition for one gate represents a tiny amount of heat, when you have millions of such gates doing this billions of times a second, you could have quadrillions of transitions occurring per second. So, if the CPU clock speed can be temporarily cut in half, this cuts the heat production about in half as well. So, when you run the grid agent, the computer will run at a higher clock speed more of the time and get hotter because the idle task does not run. The same thing happens when you play intense video games or perform other intensive tasks on the computer.

Most computer manufacturers design their computers to handle running at full speed continuously, by using sufficient heat sinks and fans in the computer. Laptops often provide user controls to manually lower the maximum allowed CPU clock speed to save battery power with the side benefit of running cooler. Many computers also have additional measures to automatically shut off the machine, for example when it gets too hot from dust filled air pathways, if a critical fan stops running, or if the room temperature is too high to permit adequate cooling. Unless you have a machine, which is defective in some way, or has inadequate cooling, it should run fine. However, running at higher temperatures can reveal latent problems with marginal components in your system. This is often the experience of zealous enthusiasts called "overclockers" who modify their machines to run at higher clock speeds than for which they were designed. If you are concerned about your own computer, then you may want to contact your computer's manufacturer(s) for advice, and take necessary steps to provide sufficient cooling and setting of proper CPU clock speeds.
[Nov 27, 2004 5:48:26 AM]   Link   Report threatening or abusive post: please login first  Go to top 
Capt Crunch
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angry Overheating here!

I echo the sentiments of others here. Laptops are not a good environment for a program which, *by design* is supposed to max out your processor as much as possible (without interfering with other apps). That's the whole point of distributed computing... take advantage of unused processor cycles.

Laptops, by design, are meant for occasional use, barring a few select workstation-class models. All that fancy battery and power-management control software and firmware is set up to lower power and cooling needs when the processor is idle... this software, by design, does that opposite. If you didn't think that through before installing on a laptop, well, that's not the grid's fault.

Some sort of processor throttle would help somewhat, but notebooks are really not designed for this sort of thing. Some desktop systems with shoddy design and inadequate cooling setups are going to have issues we well. The question you should ask yourself *before* installing software designed to run your computer at 100% as much as possible, is whether or not your hardware is up to the task. If you don't know enough to answer that question, I say, use at your own risk.

Our renderfarm, however, which is used to render 3D animation sequences that can take days or weeks to run, is designed from the ground up to run flat out 24/7. :-D We frequently have slow time between projects and between renders, however, which means we should be racking up some serious points soon! w00t!

bump
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[Dec 8, 2004 1:54:28 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Overheating here!

It is not only the excess heat that is being generated. More heat also means more power consumption !
I really really would like to have control over either of these two issues myself....
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[Edit 1 times, last edit by Former Member at Dec 9, 2004 5:50:15 PM]
[Dec 9, 2004 5:46:45 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Overheating here!

This along with BOINC take 100% and my laptop (dell 8200) would get really really hot if i left it for a good amount of hours. I went to Best Buy and picked up this Targus cooling fan system that sits beween the laptop and desk and pulls all the heat away. The fans on my laptop still run all the time, but i can actually put my hands on the bottom of the computer without feeling like my skin would melt off biggrin
[Dec 12, 2004 12:43:59 AM]   Link   Report threatening or abusive post: please login first  Go to top 
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Re: Overheating here!

I am using a less than year old HP Laptop, and The Grid Agent 24/7, so I called HP Support and was told flat out that doing this would NOT burn up my laptop nor my CPU!!!! smile


TriLsClean
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[Dec 12, 2004 4:58:52 PM]   Link   Report threatening or abusive post: please login first  Go to top 
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