You are a computer developer at XYZ Computer Corp. The managers want you to deve

Question

You are a computer developer at XYZ Computer Corp. The managers want you to develop a new computer M8, based on an existing machine M7 that has CPI = 1.7 and clock rate = 2.7GHz. The new computer will run a suite of programs that we can collectively refer to as P, and will improve upon M7 by accelerating a fraction fE of P by a factor fI = 4X using a coprocessor. Customers of XYZ Computer Corp. want the new machine M8 to have 70 percent greater performance than M7.

You must :

(a) Determine if this is possible

(b) What is the minimum fraction of P that needs to be accelerated by 4X to meet the customers’ system speedup requirement.

Explanation / Answer

Solution:

a)

In order to improve the performance with the limitation of increasing the only the factor p of the processor with fixed value of 4X

If we are able to achieve the required speedup within the given condition then it is possible to achieve.

which means if the speedup goes above 1 the given condition cannot be achieved.

it is possible to achieve the 1.7 times better than M7

b)

suppose the value of the factor is x and it is increased 4 times

so

4x = 1.7

=> x = 1.7/4 = 0.425

I hope this helps if you find any problem. Please comment below. Don't forget to give a thumbs up if you liked it. :)

Related Questions

Navigate

• Browse (All)
• Browse Y
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.