Question

Th e results of the SPEC CPU2006 bzip2 benchmark running on an AMD Barcelona has an instruction count of 2.389E12, an execution time of 750 s, and a reference time of 9650 s. Find the CPI if the clock cycle time is 0.333 ns.

Answer 1

CPI = 0.9425

Step-by-step explanation:

Given data:

instrument count = 2.389E12

Execution time = 750 s

refrence time = 9650 s

we know that CPU time can be calculated as

`CPU\ time  =  instruction\ count * CPI*\ clock\ cycle time`

CPU time sometime knows as execution time

so

`Execution\ time = instruction\ time * CPI * clock\ cycle\ time`

For clock cycle time
`0.33 ns = 0.33 * 10^(-9) s`

`CPI =  (Execution\ time)/(intruction\ time * clock\ cycle\ time)`

`CPI = (750)/(2.389E12 * 0.33* 10^(-9))`

CPI = 0.9425