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I'm glad I didn't wait for the 6950

That's probably not IBT stable, you're only getting about 52% CPU usage with "Standard" memory.

You need to increase the memory usage to get 80%+ of peak GFLOPS.

Peak GFLOPS at that speed is 8*8*4.5 = 288 GFLOPS so your target is at least 230 GFLOPS, 260 better.

You might want to experiment with using 8 and 16 threads, the latter will get hotter. Also 10 loops is probably overkill.


I was running it with 16 threads. Interested to see what happened with 8 so I also set IBT on vey high and let it rip. Seems to be behaving OK

qy8ro1.jpg
 
Very nice.

What about the same settings with 16? If you could check peak temps that would also be v interesting.

Edit: also I think linx is better maintained than IBT. It uses much more recent Linpack, including AVX2, which should get things hotter and possibly double the GFLOPS numbers (I wouldn't mind you confirming that, I haven't got anything to test it on).

Go to the last page for latest version http://www.xtremesystems.org/forums/showthread.php?201670-LinX-A-simple-Linpack-interface
 
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