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Suppose the frequency for the sequential portion of the computation is f s, the frequency for the parallel portion is f p, and the time it takes to carry out the sequential portion of the computation is t.
Based on the Amdahl's law, the sequential portion of a task limits the maximum speed-up of the parallelized implementation.
Based on the Amdahl's law[12], the sequential portion of a task limits the speed-up in parallelized implementation.
Similar to the 2-core case, the saved energy comes from the cores which do not carry out the sequential portion of the computation.
Suppose the parallel portion of the computation is distributed to n cores, and the sequential portion of the computation is carried out by core 1.
Specifically, for a given computation which involves a sequential portion and a parallel portion, the optimal frequencies for the two portions can be derived, which can achieve minimum power consumption while maintaining the same performance as running the computation sequentially on a single core.
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The primary antibody solution was decanted and the membrane washed quickly in 10 sequential portions of blocking solution containing 0.1%TWEEN-20TWEEN-20
This figure shows the execution time of the sequential and parallel portions of adaptive quadrature problem on two systems, AF and DREAM-MCP.
This figure shows the execution time of the sequential and parallel portions of 8-Body problem on two systems, AF and DREAM-MCP.
Note that for a computation which is composed of sequential and parallel portions, its resource requirement can be represented by several simple resource requirements which would need to be simultaneously satisfied.
It is important to note that the process was not always sequential; at times, portions of the work progressed simultaneously or steps were repeated as the rubric was iterated.
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