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Author Topic: Preference, cpu core - gpu core  (Read 7688 times)

Diego ROn

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Preference, cpu core - gpu core
« on: February 18, 2013, 07:36:40 PM »
Hi everybody,

How does it work? Can anybody explane it to me?

I've got installed on this WS i73820 and nvidia Quadro4000....


thanks,

Diego.

Wishgranter

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Re: Preference, cpu core - gpu core
« Reply #1 on: February 18, 2013, 07:58:24 PM »
For every GPU disabel one core, if use Hyperthreading disable 2 cores....
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Diego ROn

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Re: Preference, cpu core - gpu core
« Reply #2 on: February 18, 2013, 08:06:31 PM »
sorry, I'm a pain....

my cpu has 4 cores my gpu has 8 cores, you mean I have to deseable 4 cpu core? Ho is it going to work?

Wishgranter

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Re: Preference, cpu core - gpu core
« Reply #3 on: February 18, 2013, 08:42:59 PM »
Diego, if cannot something understand, try the magic with Google.com :-)

Read it again im wrote for every GPU, not every GPU core !!  should disable one CPU core....... Understand it ? so if you have 4 core/8thread CPU and 1 - ONE GPU then disable 2 cores on CPU as have on the image posted here......

BUT, the quadro 4000 is not so very speedy, so you get not so much speedup. If im remember Q4000 are some Nvida 4xx series GPU. Think so that Nvidia 560Ti is so fast as one 8+core CPU...... speedup is clearly to see there.....   
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Diego ROn

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Re: Preference, cpu core - gpu core
« Reply #4 on: February 18, 2013, 08:54:06 PM »
Thanks! :-[

MeHoo

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Quick question about GPU/CPU and number of cores to disable.
« Reply #5 on: July 23, 2013, 09:27:09 PM »
I don't think the readme is really clear as to how many cores you should disable when allowing the GPU to help out.

I have a six core intel, so 12 threads.  I have two Quadro K4000's.  Would I disable ONE of those 12 threads per GPU or do I need to disable the same number of cores as listed in parenthesis next to the GPU?

I'm also fuzzy on this in regards to hyperthreading.  Should I disable two cores on the CPU because technically they are really one physical CPU core?

I did a quick search, but I didn't see the clarification I was after.  Apologies in advance if I missed it.

Thanks in advance!

MeHoo

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Re: Preference, cpu core - gpu core
« Reply #6 on: July 23, 2013, 10:11:10 PM »
Thanks moderator.  Can we get the help file updated with more clear information to help other users?

Wishgranter

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Re: Preference, cpu core - gpu core
« Reply #7 on: July 24, 2013, 12:12:06 AM »
Disable 2 cores per GPU = 2x GPU = disable 4 cores


Read my previous comment on this thread....


 
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MeHoo

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Re: Preference, cpu core - gpu core
« Reply #8 on: July 24, 2013, 01:12:57 AM »
Wishgranter, my thread was merged into this one because I did not see it when searching/creating my own.