Heterogeneous computing machines and Amdahl's law
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TL;DR
It is demonstrated that, for some choices of this function, the performance of a heterogeneous system significantly exceeds that of each of the component homogeneous systems.
Abstract
We consider the implications of Amdahl's Law for a heterogeneous system of computers each of which is a homogeneous parallel processor. We introduce a parallelism profile function to describe the level of parallelism achieved in different fragments of the computation and demonstrate that, for some choices of this function, the performance of a heterogeneous system significantly exceeds that of each of the component homogeneous systems.