not much spave left. its an execise im doing, but the books dont help. any ideas?
2006-12-04 06:33:22 · 4 answers · asked by redastra2000 2 in Computers & Internet ➔ Hardware ➔ Other - Hardware
I don't know. The cloak has me confused.
2006-12-04 06:36:30 · answer #1 · answered by Anonymous · 0⤊ 1⤋
CPI sounds like clocks per instruction, but 1.2 is a weird number, maybe more like an average. Floating point instructions sometimes/usually take longer than simpler instructions.
The answer will depend on the complexity of your processor, what types of floating point hardware you have, and how many processor cycles it takes to do a multiply.
Presumably, if each multiply takes 1 processor cycle, then multiplying 9 numbers together should take 8 cycles if you have a dumb compiler. If you have a smart compiler or human generating the code, you would use
a = x * x (squared)
b = a * a (x^4)
c = b * b (x^8)
d = c * x (x^9)
or 4 cycles. This may give 1.2 x 4 = 4.8 clocks, or 4.8/9 e-9 seconds or a bit over a half nanosecond.
Sounds like your texts should explain this. I haven't taken your course, but what I suggest makes sense to me.
2006-12-04 14:43:51 · answer #2 · answered by Hansi 2 · 0⤊ 0⤋
wow heavy maths going on i done this for higher computing and got confused and have never needed it yet i can sit and typr it out but can only mind the one for memory calculations but i would say 3.2ghz being a guess
2006-12-04 18:17:51 · answer #3 · answered by perfect 2 · 0⤊ 0⤋
cloak rate? is this the rate how many times you have to go to the toilette a day?
2006-12-04 14:46:01 · answer #4 · answered by Alexius 6 · 0⤊ 0⤋