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SMP Question

post #1 of 6
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So Im pretty new to folding and I just ran my first 10 WU yesterday. To do the regular WU, my TFP was approx 3mins but when I was playing a game (Heroes of Newerth), my TFP went up to approx 25mins. Now I was wondering how -smp works and why it took this long per %.

Is the threading basically splitting the load into 8 different parts and assigning each part to a thread?
Would it be bottlenecked by the slowest processor?
Should I just do -smp 7 and leave one core for open so it wont be slowed down?

Im wondering because Im doing -bigadv WU now and it takes approximately 34mins per and if I game, I dont even want to know how much it'll be. Lol
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post #2 of 6
For me to game and fold I have to use -10 flag.
Keep in mind that I have a 6 core 12 thread processor.
So I think if you want to game you need to set maybe -6 flag.


http://en.wikipedia.org/wiki/Hyper-threading

Hyper-threading is an Intel-proprietary technology used to improve parallelization of computations (doing multiple tasks at once) performed on PC microprocessors. For each processor core that is physically present, the operating system addresses two virtual processors, and shares the workload between them when possible. Hyper-threading requires not only that the operating system support multiple processors, but also that it be specifically optimized for HTT, and Intel recommends disabling HTT when using operating systems that have not been optimized for this chip feature.[1]
Edited by Couch Potato - 4/4/11 at 4:40pm
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post #3 of 6
yeah i would leave a core or two open while gaming.. either smp 6 or smp 7, test it out yourself to see which is best, btw what's your name on hon?
post #4 of 6
I thought this was going to be about Mincraft.

Sorry.
post #5 of 6
Hang on, during setup, you should've set/left the Core priority at IDLE, which, if my understanding is correct, means FAH uses only IDLE resources. 3 to 25 minute TPF is wild
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post #6 of 6
Thread Starter 
Quote:
Originally Posted by koven View Post
yeah i would leave a core or two open while gaming.. either smp 6 or smp 7, test it out yourself to see which is best, btw what's your name on hon?
The problem isnt HoN, its that Folding decreases drastically during gameplay, like ridiculous drop. 3min TPF to 25min TPFs on normal WU. Im worried that this may carry over during my -bigadv units.

My ign is `PhoeniX_, I'm not that great.

Quote:
Originally Posted by doritos93 View Post
Hang on, during setup, you should've set/left the Core priority at IDLE, which, if my understanding is correct, means FAH uses only IDLE resources. 3 to 25 minute TPF is wild
It is set to idle but I didn't think my game would hog more than one or two cores. I dont understand why my TPF increased 8 fold. :[ Thats why I was wondering if SMP awaited for the last core to finish up the last segment cause then that core Im running my game on would be bottlenecking the rest of the folding? Im unsure how SMP is actually coded however.


EDIT: After some testing, HoN only uses 10-12% of the CPU, leaving around 88-90% for F@H.
Edited by blu3phoenix - 4/4/11 at 10:17pm
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