Using RealTemp with my Q9550. It consistently reports Core 0 to be about 7 degress hotter than Cores 1-3. I changed the "use ___% of processors" option in Preferences to 75%. It began using Cores 0, 1, and 3.

Does anyone know any way I can specifically instruct BOINC to use Cores 1-3 and not Core 0?

nope.

other than windows task manager and do it manually each and every time.

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I recommend Secunia PSI: http://secunia.com/vulnerability_scanning/personal/
Go Georgia Tech.

Thanks. I would be interested to see what if any difference it makes. I cannot see even how to set this manually in Task Manager. It shows core usage. There is an option for shifting tasks among the cores?

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nope.

other than windows task manager and do it manually each and every time.

Well, that's not strictly true.

Crunch3r has released a modified 6x CC which does allow affinity to be set and stick.

The catch is it was based on an early 6x code base and may or may not be suitable for your current situation.

Alinator

nope.

other than windows task manager and do it manually each and every time.

Well, that's not strictly true.

Crunch3r has released a modified 6x CC which does allow affinity to be set and stick.

The catch is it was based on an early 6x code base and may or may not be suitable for your current situation.

Alinator

And it still gets reset every time a new task lauches.....I think.

I also played around with the cc_config line.....no_priority_change.....
but it did not seem to have any effect on the priority the Seti tasks ran at...

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

I'd think its time for new thermal paste if you are getting widely varying temps on your quad

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In a rich man's house there is no place to spit but his face.
Diogenes Of Sinope

I'd think its time for new thermal paste if you are getting widely varying temps on your quad

That's probably what I'd do -- improve the cooling.

At the same time, I don't know how accurate the sensors are on the typical CPU and/or motherboard. It could be an error in measurement.

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dell and hp put like little if any paste on their machines.... my p4 which i just re-thermalized is running 10 c cooler, so yea, new paste is something you can try to help.

cooler is better in the tech world.

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I recommend Secunia PSI: http://secunia.com/vulnerability_scanning/personal/
Go Georgia Tech.

I'm going to do that next week when I install a new PSU. However, the rig is quite new. I spent a great deal of time lapping the base of my heatsink, and use Tuniq TX-2 thermal grease, so this is irritating. I don't have the courage to lap the CPU heat-spreader.

Crunch3r has released a modified 6x CC which does allow affinity to be set and stick.

The catch is it was based on an early 6x code base and may or may not be suitable for your current situation.

Alinator

Crunch3r's v6.1.0 is still in use - 0.5%, according to client_types.

But IIRC it's actually a v5 codebase - doesn't have the app/data folder split, and certainly doesn't support co-processors - so it's a bit of a dead-end ATM.

And the affinity turned out not to help crunch times, either.

Well, as long as you are careful and don't press down on the processor package like you're killing snakes you should be OK. ;-)

Remember, you're not trying to take a lot of material off the spreader, just smooth the surface better.

If you find that you get noticable bright spots rather than a uniform shiny surface I'd RMA the processor, since the spreader is obviously defective. It would do a lousy job transfering the heat right from the start.

Alinator

<snip>

But IIRC it's actually a v5 codebase...

Ah yes, that was the tricky part about it. My bad! :-)

Alinator

I can't remember if this actually works or not..

A while back, I changed the affinity of boinc.exe to use just one core (don't know why specifically I did it in the first place..). A few hours later, I noticed my CPU load was only 25% (1 of the 4 available cores).

Here's the part I can't remember.. I can't remember if only one task was running, or if there were 4 fighting for that 25%.

Something to look at, at least.

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Linux laptop:
record uptime: 1511d 20h 19m (ended due to the power brick giving-up)

Now here's the rub.........

Can cc_congfig actually control the priority level when each take launches?

I would love to be able to assign real time priority to Cuda tasks.....as there is nothing running on the rigs except Seti.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

That is weird. I changed Preference to use 25% of processors. I have one WU crunching, but Task Manager shows all cores busy and no one core at max. Core 0 is at about 60%, and Cores 1-3 are at about 15%. Not surprisingly Core 0 still shows several degrees hotter than the others.

zpm above seemed to indicate there was a way to force a core assignment "manually." Unless I misunderstood. I still see no way to do this.

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That is weird. I changed Preference to use 25% of processors. I have one WU crunching, but Task Manager shows all cores busy and no one core at max. Core 0 is at about 60%, and Cores 1-3 are at about 15%. Not surprisingly Core 0 still shows several degrees hotter than the others.

zpm above seemed to indicate there was a way to force a core assignment "manually." Unless I misunderstood. I still see no way to do this.

You can do it in task manager.......
But the change only holds until the task finishes and another is started.

Still seems like your cooling solution is not seated quite right...
Although I have found some situations where I know the cooler is seated quite fine, and there is still one rogue core.......
There is absolutely nothing you can do about that, short of changing out the CPU.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

That is weird. I changed Preference to use 25% of processors. I have one WU crunching, but Task Manager shows all cores busy and no one core at max. Core 0 is at about 60%, and Cores 1-3 are at about 15%. Not surprisingly Core 0 still shows several degrees hotter than the others.

zpm above seemed to indicate there was a way to force a core assignment "manually." Unless I misunderstood. I still see no way to do this.

Go into Task Manager and select the process you want to set the affinity for and right click on it. You should get a dialog which will let you set the priority and affinity for that process.

Alinator

That is weird. I changed Preference to use 25% of processors. I have one WU crunching, but Task Manager shows all cores busy and no one core at max. Core 0 is at about 60%, and Cores 1-3 are at about 15%. Not surprisingly Core 0 still shows several degrees hotter than the others.

zpm above seemed to indicate there was a way to force a core assignment "manually." Unless I misunderstood. I still see no way to do this.

Go into Task Manager and select the process you want to set the affinity for and right click on it. You should get a dialog which will let you set the priority and affinity for that process.

Alinator

As I said.......that is only a temporary solution, as it is reset every time a new task starts.

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"Freedom is just Chaos, with better lighting." Alan Dean Foster

That is weird. I changed Preference to use 25% of processors. I have one WU crunching, but Task Manager shows all cores busy and no one core at max. Core 0 is at about 60%, and Cores 1-3 are at about 15%. Not surprisingly Core 0 still shows several degrees hotter than the others.

zpm above seemed to indicate there was a way to force a core assignment "manually." Unless I misunderstood. I still see no way to do this.

Go into Task Manager and select the process you want to set the affinity for and right click on it. You should get a dialog which will let you set the priority and affinity for that process.

Alinator

As I said.......that is only a temporary solution, as it is reset every time a new task starts.

Agreed, setting it that way for science apps is pretty useless, even if you leave them in memory.

However, you could swap BOINC around and that should stick until you shutdown BOINC manually or restart the machine.

That might offer some insight into the core heating question.

Alinator

what temp are the cores right now?

55-60?
or higher?