On Thu, Mar 12, 2009 at 5:53 AM, Toon Moene <mo...@knmi.nl> wrote: >> >> (*) it would have helped to know the compilation flags and target, of >> course. > > Yep, sorry: -g -O3 -ffast-math -mcpu=native -march=native > on a x86-64-unknown-linux-gnu system (native 64-bit). >
Please show output of 'gcc -v" on the machine you are compiling since -mcpu=native -march=native will enable different sets of optimizations, depending on build machine. -- H.J.
