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2005
IEEE

Reducing the Energy of Speculative Instruction Schedulers

10 years 2 months ago
Reducing the Energy of Speculative Instruction Schedulers
Energy dissipation from the issue queue and register file constitutes a large portion of the overall energy budget of an aggressive dynamically scheduled microprocessor. We propose techniques to save energy in these structures by reducing issue queue occupancy and by reducing unnecessary register file accesses that can result from speculative scheduling. Our results show a 44% reduction in issue queue occupancies and an 87% reduction in register file accesses for scheduling replays. Our data show that these savings can translate into a 52% saving in issue queue energy, a 13% savings in register file energy, and a 22% overall energy savings.
Yongxiang Liu, Gokhan Memik, Glenn Reinman
Added 16 Mar 2010
Updated 16 Mar 2010
Type Conference
Year 2005
Where ICCD
Authors Yongxiang Liu, Gokhan Memik, Glenn Reinman
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