Cache-Aware Scratchpad Allocation Algorithm

12 years 3 months ago
Cache-Aware Scratchpad Allocation Algorithm
In the context of portable embedded systems, reducing energy is one of the prime objectives. Most high-end embedded microprocessors include onchip instruction and data caches, along with a small energy efficient scratchpad. Previous approaches for utilizing scratchpad did not consider caches and hence fail for the au courant architecture. In the presented work, we use the scratchpad for storing instructions and propose a generic Cache Aware Scratchpad Allocation (CASA) algorithm. We report an average reduction of 8-29% in instruction memory energy consumption compared to a previously published technique for benchmarks from the Mediabench suite. The scratchpad in the presented architecture is similar to a preloaded loop cache. Comparing the energy consumption of our approach against preloaded loop caches, we report average energy savings of 20-44%.
Manish Verma, Lars Wehmeyer, Peter Marwedel
Added 20 Aug 2010
Updated 20 Aug 2010
Type Conference
Year 2004
Where DATE
Authors Manish Verma, Lars Wehmeyer, Peter Marwedel
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