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Affinity changer

post #1 of 29
Thread Starter 
Does anyone else notice that the difference in cpu usage for one SMP remains higher than the other even after running the Affinity changer?

My second instance of SMP seems to be those lower cpu usages.





post #2 of 29
I noticed it but honestly never paid much attention as it seemed to work better then running without it.

Did your times per % get better?
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post #3 of 29
I have noticed it also but I don't think there is really anything the affinity changer can do about that. It only distributes the processes to the different cores but it's up to FAH to distribute the load to each process.

I've always chalked it up to differences in each process that FAH creates.

If each process is assigned to only one CPU core then affinity changer is doing it's job correctly.
Edited by Kilzon - 5/15/08 at 11:19am
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post #4 of 29
Mine acts the same way. One instance is significantly faster than the other. As others have mentioned, I'm just happy that the folding is more efficient and my contribution is rewarded with more points.

It's kind of annoying that you have to restart completely rather than ctrl-c the processes though if you intend to stop f@h for any reason.
    
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post #5 of 29
It probably because certain parts of what it is calculating take up CPU and memory resources than others. I'd say this is perfectly normal. Changing the affinity manually never does much, Windows is smart enough to do this on its own (usually).
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post #6 of 29
Thread Starter 
Quote:
Originally Posted by Polo224 View Post

It's kind of annoying that you have to restart completely rather than ctrl-c the processes though if you intend to stop f@h for any reason.
I didn't know that
post #7 of 29
Quote:
Originally Posted by Polo224 View Post
It's kind of annoying that you have to restart completely rather than ctrl-c the processes though if you intend to stop f@h for any reason.
I've never had to do that?? Why do you have to restart? The cores will eventually shut down by themselves, or at the most you should just be able to log out and log back on without having to reboot.
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post #8 of 29
Quote:
Originally Posted by Kilzon View Post
I've never had to do that?? Why do you have to restart? The cores will eventually shut down by themselves, or at the most you should just be able to log out and log back on without having to reboot.
I've only been running the affinity changer for about a week now. When I first started, if I ctrl-c'd an instance, it corrupted the other instance's WU. Maybe it is because after I stopped the processes, I noticed that the cpu cores were still working and rebooted.

Is it normal for the cpu to continue to show usage for a period after ending the 2 processes? If so, what is your experience with the amount of time that they return to idle?
    
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post #9 of 29
Quote:
Originally Posted by Polo224 View Post
I've only been running the affinity changer for about a week now. When I first started, if I ctrl-c'd an instance, it corrupted the other instance's WU. Maybe it is because after I stopped the processes, I noticed that the cpu cores were still working and rebooted.

Is it normal for the cpu to continue to show usage for a period after ending the 2 processes? If so, what is your experience with the amount of time that they return to idle?
i have seen this before myself, but it only happens when i close the window. if i hit ctrl - c, it closes fine, with no corruption.
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post #10 of 29
ON the subject, since there is already an option to set affinity in XP why is there an ''Affinity Changer" utility?
    
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