Minimum ifort version for E5-2670 processor?

[kjkjkj]

Hi,

I'm wondering if recent processors require recent ifort versions? I'm currently using some code compiled on Xeon E5-2670 using ifort 11.1.075 and the performance is bad in some cases.

Now it may have nothing to do with the compiler - I thought it was worth asking though :).

Any takers?

thanks very much,

Kevin

[Steven_L_Intel1]

"Require"? No. But you may not be taking best advantage of the CPU. With 11.1, try -xSSE4.2 . If you had the current compiler, you could use -xAVX for better code.