Dynamic Register File Resizing and Frequency Scaling to Improve Embedded Processor Performance and Energy-Delay Efficiency

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Provided by: Association for Computing Machinery
Topic: Hardware
Format: PDF
With CMOS scaling leading to ever increasing levels of transistor integration on a chip, designers of high-performance embedded processors have ample area available to increase processor resources in order to improve performance. However, increasing resource sizes can increase power dissipation and also reduce access time, which can limit maximum achievable operating frequency. In this paper, the authors explore optimizations for the processor Register File (RF), to improve performance and reduce the energy-delay product. They show that while increasing the size of the RF can potentially increase the IPC, overall it results in an increase in program execution time.
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