Intel 4.5GHz & 5GHz LinX Stable Club

[zoson]

The problem is that the reason why gflops are inconsistent, is because of instability in the person's system. There is a reasonable expectation for raw calculations at a given speed. I have never seen my Gflops vary if the speed is kept the same.

I also take issue to the memory remarks... I've tested all the way from 1333 cas5 to 2200 cas10. The difference in gflops when cpu speed is kept the same is very small, as long as the memory size/problem set size is consistent. 1-1.5Gflops tops.

Also, if you don't use enough memory, you cannot stress the cpu correctly! The problem set will not be large enough to engage all the execution units of the processor!!! That is why there is lower Gflops with lower memory. The stress test is not complete. It is also why we see lower temps with lower memory sizes, and also why we see lower temps if HT is on and memory size is > 9gb... It is not difficult at all!!! I can complete linx 21 loops at 4.9ghz with 512mb memory size! Gflops is less, but it completes! Is that stable? no!!!!

In summary, I think the reason for inconsistent gflops is they are doing it wrong!!!!!