Mill Computing, Inc. Forums The Mill Markets Many core mill (GPU) Reply To: Many core mill (GPU)

Ivan Godard
Keymaster
Post count: 629

Standard-conforming FP addition can’t be as fast as integer (one cycle) unless the integer is very slowed down. Normalization and rounding must be done before (and after) the integer add that is inside the FP add. Some GPUs and other special-purpose engines just do everything in FP, and an integer is just an FP number with a zero exponent; for those machines int and float trivially take the same time, but that not something you’d do in a general-purpose machine.