Register Packing: Exploiting Narrow-Width Operands for Reducing Register File Pressure
Proceedings of the 37th annual IEEE/ACM International Symposium on Microarchitecture
Selective writeback: exploiting transient values for energy-efficiency and performance
Proceedings of the 2006 international symposium on Low power electronics and design
Register port complexity reduction in wide-issue processors with selective instruction execution
Microprocessors & Microsystems
Asymmetrically banked value-aware register files for low-energy and high-performance
Microprocessors & Microsystems
Early detection and bypassing of trivial operations to improve energy efficiency of processors
Microprocessors & Microsystems
Selective writeback: reducing register file pressure and energy consumption
IEEE Transactions on Very Large Scale Integration (VLSI) Systems
Energy-efficient register caching with compiler assistance
ACM Transactions on Architecture and Code Optimization (TACO)
Exploiting narrow-width values for thermal-aware register file designs
Proceedings of the Conference on Design, Automation and Test in Europe
Bit-sliced datapath for energy-efficient high performance microprocessors
PACS'04 Proceedings of the 4th international conference on Power-Aware Computer Systems
Low power aging-aware register file design by duty cycle balancing
DATE '12 Proceedings of the Conference on Design, Automation and Test in Europe
| Hi-index | 0.00 |
Power consumption in the register file (RF) forms a considerablefraction of the total power consumption in a chip. With increasinginstruction window sizes and issue widths, RF power consumptionwill suffer a significantly large growth. Using the fact that manyof the register values are small and require only a small number ofbits for representation, we propose a novel asymmetrically portedRF (to reduce RF power consumption), in which some of the port scanonly read/write small-sized values. We experiment with bothmonolithic and partitioned versions of asymmetrically ported RFs.The power savings in the RF with partitioned asymmetrically portedRF reach as high as 60%. These reductions in RF power consumptioncome with about 40% improvement in RF access-time and a negligibleimpact on IPC (Instructions per Cycle).