02.7+8-15 points Comsider three different processors P1, P2, and P3 executing th

Question

02.7+8-15 points Comsider three different processors P1, P2, and P3 executing the with the clock same instruction set rates and CPis given in the table below PI P2 P3 Proeessor Clock Rate CPL 2.8GHz2.0 Asnwer the following questions(show your work) 2.1 Which processor has the highest performance expressed in instructions per second? (Hint. Performance-instruction/sec 2.2 nhe pror seorsctiohsfer each, Her nm n2 umber ofinstruction xCP)/élock ratel number of instructions for each. (Hint. Times (number of instruction x CP)/ Q.3. (15 points) Multiply 1010x1011 following multiplication algorithm (using four bits representation) and show each steps demonstrating the content of Multiplicand, Multiplier, and the Product registers.

Explanation / Answer

2.1
P1: 2.5GHz / 2.5 = 1 * 10^9 instructions per second
P2: 3.5GHz / 1.5 = 2.3 * 10^9 instructions per second
P3: 2.8GHz / 2.0 = 1.4 * 10^9 instructions per second

So P2 has the highest performance among the three.

2.2.
when executed for 20 sec  
Cycles:
P1: 2.5GHz * 20 = 2.5 * 10^11 cycles
P2: 3.5GHz * 20 = 3.5 * 10^11 cycles
P3: 2.0GHz * 20 = 2.0 * 10^11 cycles

Number of instructions individual :
P1: 2.5GHz * 20 / 2.5 = 1 * 10^11 instructions
P2: 3.5GHz * 20 / 1.5 = 2.3 * 10^11 instructions
P3: 2.0GHz * 20 / 2.0 = 1.4 * 10^11 instructions

ans 3.

1010*1011 =  1101110

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