Design and Implementation of aWorkload Specific Simulator

  • Authors:
  • Takashi Nakada;Tomoaki Tsumura;Hiroshi Nakashima

  • Affiliations:
  • Toyohashi University of Technology;Toyohashi University of Technology;Toyohashi University of Technology

  • Venue:
  • ANSS '06 Proceedings of the 39th annual Symposium on Simulation
  • Year:
  • 2006

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Abstract

This paper proposes a simple but efficient technique for instruction set simulators. Our simulator is made workload specific by a simple process to generate a set of C functions from a workload binary. It is as portable and retargetable as ordinary instruction emulators because the translation targets C code and works well with well-abstracted instruction definitions. The translation is also easy-to-implement without requiring any complicated analysis nor profiling. We also propose a set of simple optimization techniques for cache simulation which cooperates with the workload specific technique. A SimpleScalar-based implementation of these techniques results a significantly large performance improvement. Our evaluations with SPEC CPU95 exhibit that the maximum speedups over sim-fast, sim-cache and sim-outorder are 38-fold, 14-fold and 9.7-fold respectively, while the average numbers are 19-fold, 8.3-fold and 3.8-fold.