Essay
A two-part question:
(Part A)
Assume that a design team is considering enhancing a machine by adding MMX (multimedia extension instruction) hardware to a processor. When a computation is run in MMX mode on the MMX hardware, it is 10 times faster than the normal mode of execution. Call the percentage of time that could be spent using the MMX mode the percentage of media enhancement.
(a) What percentage of media enhancement is needed to achieve an overall speedup of 2?
(b) What percentage of the run-time is spent in MMX mode if a speedup of 2 is achieved? (Hint: You will need to calculate the new overall time.)
(c)What percentage of the media enhancement is needed to achieve one-half the maximum speedup attainable from using the MMX mode?
Correct Answer:
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a.We will use Amdahl's Law for this ques...View Answer
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