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25 January, 12:28

A certain application runs in 30 minutes on a single processor PXY system. A close analysis reveals that 6 minutes of execution is due to inherently sequential code, while the code for the remaining 24 minutes is fully parallelizable. We consider upgrading our system to a multi-core PXY system so as to make the running time at most 10 minutes. What is the minimum number of cores that we should use

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  1. 25 January, 12:55
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    minimum number of cores required = 6

    Explanation:

    Time take by parallelizable code = 24 mins

    Reduced time of parallelizable code = 4 mins

    Speed gained = 24/4 = 6 times

    Therefore minimum number of cores required = 6
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Home » Computers & Technology » A certain application runs in 30 minutes on a single processor PXY system. A close analysis reveals that 6 minutes of execution is due to inherently sequential code, while the code for the remaining 24 minutes is fully parallelizable.
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