EMERGING TRENDS IN SOFTWARE ENGINEERING
CLOUD COMPUTING
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Eff = (T*P)/M
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Eff = T*(M/P)
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Eff = T/(P*M)
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Eff = T*P*M
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Detailed explanation-1: -Where a task takes time T in uniprocessor system, P is number of processors, M is time taken by each processor. (a) Eff = (T*P)/M.
Detailed explanation-2: -Parallel Programming Concepts: Efficiency In parallel computing, efficiency is the proportion of simultaneously available resources utilized by a computation.
Detailed explanation-3: -The speedup is defined as the ratio of the serial runtime of the best sequential algorithm for solving a problem to the time taken by the parallel algorithm to solve the same problem on p processors. The efficiency is defined as the ratio of speedup to the number of processors.
Detailed explanation-4: -Speedup achieved by a parallel algorithm is defined as the ratio of the time required by the best sequential algorithm to solve a problem, T(1), to the time required by parallel algorithm using p processors to solve the same problem, T(p).