Physical Sciences and Mathematics Commons^™

Investigating The Effects Of Decoupling Cache And Core Speed On Power, Throughput, And Energy, David Daniel Pruitt

Open Access Theses & Dissertations

A variety of computer systems from HPC to mobile systems are power limited and performance sensitive. These systems use very similar components at different scales. Dynamic Voltage and Frequency Scaling (DVFS) features enable modulation of CPU performance and efficiency characteristics to power, energy and timing requirements.Programs have a variety of computational characteristics. If a CPU subsystem substantially limits a particular programâ??s execution progress, that programâ??s throughput will vary proportionally with the subsystemâ??s clock frequency. In contrast, if a CPU subsystem does not substantially limit throughput, the impact of a change in its clock frequency will result in a diminimus change …