Part $2$: $[40$ points$].$

There are two machines, M$1$ and M$2$ with different ISAs. Three classes of instructions A$,$ B$,$ and C are

included in both instructions sets. M$1$ has a clock rate of $2\mathrm{.}25$ GHz and M$2$ has a clock rate of $3$ GHz$.$ The

number of cycles required for each instruction class in each machine are given below. A typical program is

compiled $($by similar compilers$)$ into $1$ million and $2$ million instructions in M$1$ and M$2$ respectively. The

frequencies of instructions in each instruction class in each machine are also given below.

Instruction Class Machine M$1$ Machine M$2$

Cycles$/$Ins

tructions

Frequency Cycles$/$Ins

tructions

Frequency

A $160\%150\%$

B $230\%330\%$

C $310\%320\%$

CLOCK RATE $2\mathrm{.}25$ GHZ $3$ GHZ

# Of ML Instructions $1$ million $2$ million

Average CPI

MIPS

Execution Time

$1)$ Calculate the average CPIs for both M$1$ and M$2.$

$2)$ Calculate the MIPS of both M$1$ and M$2.$

$3)$ Calculate the execution times in M$1$ and M$2$