The help file from the Intel C/C++ compiler for linux documented that "-fast" enables -xP -03 -ipo -no-prev-div -static. What is "-no-prev-div"? I could not find its definitionfrom the same help file.
Please note that your text should read -no-prec-div, which does the opposite of the default -prec-div (both are listed in the help file). The former switch enables a few optimizations on floating-point division that improve performance at the expense of some potential numerical accuracy