A Hardware/Software Partitioning Algorithm for Processor Cores with Packed SIMD-Type Instructions(Design Methodology)(<Special Section>VLSI Design and CAD Algorithms)

概要

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This letter proposes a new hardware/software partitioning algorithm for processor cores with SIMD instructions. Given a compiled assembly code including SIMD instructions and a timing constraint, the proposed algorithm synthesizes an area-optimized processor core with a new assembly code. Firstly, we assume for each operation type a super SIMD functional unit which can execute all the SIMD instructions. Secondly we reduce a SIMD instruction or "sub-function" of each super functional unit, one by one, while the timing constraint is satisfied. At the same time, we update the assembly code so that it can run on the new processor configuration. By repeating this process, we finally find SIMD functional unit configuration as well as a processor core architecture. The promising experimental results are also shown.
社団法人電子情報通信学会の論文
2003-12-01