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9966 [12]
3 years ago
13

Suppose that we can improve the floating point instruction performance of machine by a factor of 15 (the same floating point ins

tructions run 15 times faster on this new machine). What percent of the instructions must be floating point to achieve a Speedup of at least 4?
Computers and Technology
1 answer:
frez [133]3 years ago
4 0

Answer:

Answer to the following question is 80.36.

Explanation:

We use an Amdahl’s Law.

Let x be the percentage of a floating-point instruction.  

Since, the speedup = 4,  

if the program executed 100 cycles then, this program will runs 100/4 = 25 cycles

\frac{100}{4} = \frac{x}{15} + (100-x)

Solve  x, we get:

x = 80.36

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