On Sat, Jan 23, 2010 at 8:47 AM, Steve White <swh...@aip.de> wrote: > gcc has this (gcc -std=c99 -O3 -msse2 -mfpmath=sse -lm -S dt.c) > icc has this (icc -Wall -w2 -fast -c dt.c)
icc's -fast is equivalent to gcc's -ffast-math option which you did not supply so you comparing apples to oranges. Note supplying -ffast-math will have gcc to pull out the division out of the loop which should speed up your program with some loss of precision. Thanks, Andrew Pinski
