CAREER: Compiler and Run-time System Support for Modern Hardware

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To achieve the best performance on modern computers, one mustunderstand and exploit the interactions between program behavior,run-time systems, and hardware. This research explores compiler andrun-time system support for improving load-value prediction and forreducing the energy consumption of programs. Load-value predictionexposes instruction-level parallelism in programs by allowing loads toexecute in parallel with the instructions that depend on it. Energyreduction techniques reduce the energy requirements of programswithout significantly degrading performance.Broadly speaking this research considers two kinds of techniques: (i)Compiler techniques that use easily-available information in programs(such as type information) to transform or annotate code to makebetter use of hardware; (ii) Run-time system techniques thatreorganize and annotate data to make better use of hardware. Thisresearch will also consider new hardware mechanisms for load-valueprediction and energy consumption that can be exploited in software.