When computation are parallelize


#1

Consider 90% of the computation can be parallelised what is the maximum speedup can be
expected from 8 processor?
A) 4.7 B)2.8 c) 3.2 D) 5.3


#2

Option (A) is correct.

Just use Amdahl’s Law:

Theoretical SpeedUp = 1/(1 - f + f/s)
where ‘f’ is the part or fraction getting benefited from speedup.
‘s’ is the speedup achieved by that part or fraction.

= 1/(1 - 0.9 + 0.9/8)

= 1/(0.1 + 0.1125)

= 4.7