Development of "Hardware Morphing" Technology for Dynamic Optimization of Hardware Configuration

点击翻译按钮获取中文摘要

The objective of this research project is to develop techniques(called "Syste Morph : System Morphing") of dynamic reconfiguration and optimization of hardware for system-LSI's and software for them, as (a)an approach for optimization of designing system-LSI's and (b)a solution for "design crisis". The project has performed the following research results.(1)Development and evaluation of online-pro filing techniques : The project has developed some techniques of online profiling which find a hot spot(for example, programming codes, data, or paths operated frequently in a program) by observing the behavior of a program. Then, the project has implemented the online profile to the, dynamically-reconfigurable processor, DAP/DNA, by IPFlex, and evaluated its accuracy and overheads.(2)Development and evaluation of dynamic-software-pipelining techniques : The project has developed some techniques of dynamic software pipelining for loops in the hot path found in (1). Then, the project has implemented the techniques for a hyper-scalar processor which has a VLIW as its coprocessor, and evaluated its improvement and overheads.(3)Development and evaluation of online-construction techniques for configuration data of hardware : The project has developed some techniques to construct the configuration data of a DNA dynamically and in a parallel with the operation of the program, to con figure dynamically the hot path in (1) to the DNA as a logical circuit. Then, the project has implemented the techniques and valuated its performance