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The true power of Sandy Bridge? (130 GFlop peak linpack) - Page 6

post #51 of 61
Holy crap, I bsod'd after updating to SP1 and firing up the updated linpack. Guess AVX must be more stressful.
*adds volts*
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post #52 of 61
My only question is y does avx only works if i turn HT off in linX?
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post #53 of 61
Quote:
Originally Posted by Dalamar View Post
Holy crap, I bsod'd after updating to SP1 and firing up the updated linpack. Guess AVX must be more stressful.
*adds volts*
Yeah, AVX is vicious. Doing 4 cores 8 threads 4.7Ghz IBT I got 1 error in the last run. I need like +.2 volts to hold stable.

Quote:
Originally Posted by kevink82 View Post
My only question is y does avx only works if i turn HT off in linX?
No idea, it didn't work with HT when I had it on. But I updated to Windows 7 SP1 and used the Linx pack with IBT. Originally my score was about 56 GFlops with 4C/8T @ 4.7Ghz. I turned off hyperthreading and OC to 5.0Ghz and now I get about 70GFlops so I practically doubled in GFlops from my last setup which was 35GFlops. But this is done with 1600Mhz memory, with 2133Mhz I'm sure it will be way higher. knew I should've went with higher speed then tighter timings lol.

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post #54 of 61
Can't you loosen your timings and increase your speed? That is what I plan on doing once I get around to memory OC'ing.
    
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post #55 of 61
bump

Can someone try LinX 64-bit with a 2600k using all 8 threads and problem size = 10000?
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post #56 of 61
Quote:
Originally Posted by elikim View Post
holy crap! how are you getting 130 gflops!? I was happy getting 70.
With SP1 and a Overclock of 4.8Ghz+ you hey 130Gflops!

i thought 100Gflops on a 980X was crazy! Ivy bridge is going to be INSANE! 200Gigaflops+
    
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post #57 of 61
Quote:
Originally Posted by test tube View Post
bump

Can someone try LinX 64-bit with a 2600k using all 8 threads and problem size = 10000?


Any particular speed you want this run at, ram and cpu?
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post #58 of 61
Incredibly tempted to upgrade to sandy bridge now. ._.
I was happy getting an average of 58 Gflops on my i5-750 at 4GHz and now, it seems like my i5 is outdated and incredibly slow.
     
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post #59 of 61
Quote:
Originally Posted by EpicPie View Post
Incredibly tempted to upgrade to sandy bridge now. ._.
I was happy getting an average of 58 Gflops on my i5-750 at 4GHz and now, it seems like my i5 is outdated and incredibly slow.
Because of g flops?C'mon be real.This has nothing to do with how fast it is,sandy bridge is optimized for ibt.
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post #60 of 61
Sorry for revive a dead thread, but I don't understand how getting nearly a 130 points on 1333 ram like kyle2194 is even possible. I pulled a max of 67 with my 4.81 ghz 2500k. At 4.6 it's closer to 60.
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