I am having an annoying problem on iMac. The fortran programs was compiled with ifort 13 (also used -fp-model precise and -O3 ), the results from 10 runs are inconsistent.But running the same programs in a Macbook pro running 10.6.x are consistent. It is really strange! I am not sure if I should blame Mac OSX or Intel compiler.
Did anyone experience similar problem in Mac OSX 10.7 or above?