Boinc and not using all cpu's

疑难解答 : Windows : Boinc and not using all cpu's
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Profile Jord
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消息 873910 - 发表于:8 Mar 2009, 23:36:56 UTC - 回复消息 873906.  

You're welcome. :-)

As to the other account, you can't merge it into this one or delete it. It'll stay in limbo.
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John

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消息 873906 - 发表于:8 Mar 2009, 23:33:19 UTC

Well - thankyou all - The prefs prob seems resolved with that link, and am now crunching seti enhanced - but I think I have lost my old credit. Not a prob. I can't be bothered to get it :) TY once again
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Profile Jord
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消息 873884 - 发表于:8 Mar 2009, 23:07:21 UTC - 回复消息 873872.  

Darn I skip over checking his account - rookie mistake I shouldn't be making -
GOOD CATCH

Sssht, so did John and Charlie, so you're in good company. ;-)

(and I have done it not too long ago as well, so hum...)
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消息 873872 - 发表于:8 Mar 2009, 22:46:32 UTC - 回复消息 873867.  

Did you change the preferences with this account?

If you did, then you must have a second account, as under the account you are posting with, you do not have any computers attached. See this FAQ on how to overcome this.

Darn I skip over checking his account - rookie mistake I shouldn't be making -
GOOD CATCH

This account was last used to crunch 6 Apr 2007
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Profile Jord
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消息 873867 - 发表于:8 Mar 2009, 22:36:17 UTC - 回复消息 873863.  

Did you change the preferences with this account?

If you did, then you must have a second account, as under the account you are posting with, you do not have any computers attached. See this FAQ on how to overcome this.
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John

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消息 873863 - 发表于:8 Mar 2009, 22:25:34 UTC

That is what my preferences say
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消息 873861 - 发表于:8 Mar 2009, 22:21:50 UTC

I did update - it comes up in red at the top to say you have to update on the Boinc page or wait for the tasks to comunicate - but i have updated it on the advanced view. Still get v5 AP's
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消息 873860 - 发表于:8 Mar 2009, 22:20:52 UTC - 回复消息 873858.  

I don't have them checked - thats the problem

check the edit on my last post. What does the preference page show.
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消息 873858 - 发表于:8 Mar 2009, 22:18:39 UTC

I don't have them checked - thats the problem
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消息 873857 - 发表于:8 Mar 2009, 22:16:44 UTC - 回复消息 873853.  
最近的修改日期:8 Mar 2009, 22:20:03 UTC

I'm using Boinc version 5.8.16 - I am using the preferences from the advanced view on the left after selecting seti from the projects screen. It takes me to the seti account screen where I select the prefs and only select the get work from seti enhanced button - the get work from other projects is deselected. I still get AP v5 units.

I haven't touched the work/school/home prefs.

check mark
SETI@home Enhanced

You need to make sure you don't have a check mark besides
Astropulse
Astropulse v5
and
If no work for selected applications is available, accept work from other applications?

EDIT
Click update preferences at bottom of page.

Your preference page should then show
Run only the selected applications SETI@home Enhanced: yes
Astropulse: no
Astropulse v5: no

If no work for selected applications is available, accept work from other applications? no
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消息 873853 - 发表于:8 Mar 2009, 22:04:17 UTC

I'm using Boinc version 5.8.16 - I am using the preferences from the advanced view on the left after selecting seti from the projects screen. It takes me to the seti account screen where I select the prefs and only select the get work from seti enhanced button - the get work from other projects is deselected. I still get AP v5 units.

I haven't touched the work/school/home prefs.
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消息 873055 - 发表于:6 Mar 2009, 21:54:58 UTC - 回复消息 873014.  

Ok thx for the reply - but what I mean is why can't 1 astropulse unit be calculated by 2cpu's? Because I have a duel core system it seems this is not possible? An astropule unit takes too long to run on only 1 cpu (approx 160hrs) and I usually get 4 weeks to do it but I don't necessarily have the comp on for 40+hrs/week. If it ran on both cpus I would easily be able to calculate them on time.


Because the science app isn't multi-threaded. There has been some major performance degradation in attempting to code the app to be multi-threaded due to context switching, cache syncs between processors/cores (remember that if it were multi-threaded, a simple dual (not duel) processor machine with a single core per CPU would attempt to process the app on both CPUs, and trying to sync the L1 and L2 cache across the bus would be prohibatively slow as each transaction is limited to the speed of the FSB). As it turns out, the app spends more time sync'ing with all the cores/CPUs in a system than it actually does processing the data.

This doesn't mean that it will never happen, it simply means that it is currently difficult to do until the programming tools become better.

In the Seti preferences edit page I have the Astropulse and v5 turned off and the box unchecked in get work from other apps if no work - but I still get Astropulse work units - and I have pressed the update button. Help pls.


Does the machine in question belong to whatever preference venue (Home, Work, School) you've changed?

Are you using web based preferences or are you using local preferences? Because local prefs will always override the web based ones.
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消息 873014 - 发表于:6 Mar 2009, 19:45:17 UTC

Ok thx for the reply - but what I mean is why can't 1 astropulse unit be calculated by 2cpu's? Because I have a duel core system it seems this is not possible? An astropule unit takes too long to run on only 1 cpu (approx 160hrs) and I usually get 4 weeks to do it but I don't necessarily have the comp on for 40+hrs/week. If it ran on both cpus I would easily be able to calculate them on time.
In the Seti preferences edit page I have the Astropulse and v5 turned off and the box unchecked in get work from other apps if no work - but I still get Astropulse work units - and I have pressed the update button. Help pls.
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消息 871617 - 发表于:3 Mar 2009, 3:48:50 UTC

You can select which sort of downloads you wish on this web site, in your account SETI Preferences. (NOOB issue).

You can select how many CPUs to run, and CUDA capable GPUs if you have any. This can be done through the CPU usage settings in your account, or locally for each machine (advanced view, advanced menu - Preferences) The local settings override the web settings.

6.4 has some CPU scheduler and work fetch bugs having to do with the incorporation of CUDA capable devices. If you DO NOT have a CUDA capable video card, you might want to consider uninstalling 6.4.x and installing 6.2.9 in its place. 6.2.19 does have some extra bugs with graphics that are supposedly fixed in 6.4.7 (yet to be released).


BOINC WIKI
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消息 871607 - 发表于:3 Mar 2009, 3:21:53 UTC

Boinc and why havent they adapted it? I have astropulse downloads - these are still big and i cannot allow both cpus to run it - is this a hardware prob - im noob?

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疑难解答 : Windows : Boinc and not using all cpu's


 
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