Hi all, I can't seem to find the -mtune option for Intel Nehalem architectures (specifically Intel Xeon X5570). I was recommended -mtune=barcelona, but I got an error when compiling that. The closest is -mtune=nocona, which I believe is for the Core2 chips. Are there any mtune options for Intel Nehalem (for any version of GCC)? Thank you. Regards, Rayne