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Checkpointing alternatives for high performance, power-aware processors

Published: 25 August 2003 Publication History

Abstract

High performance processors use checkpointing to rapidly recover from branch mispredictions and possibly other exceptions. We demonstrate that conventional checkpointing becomes unattractive in terms of resource and power requirements for future generation processors. We propose out-of-order checkpoint release and checkpoint prediction, two alternatives that require significantly less resources and power while maintaining high-performance. We demonstrate their utility at the register alias table (RAT). Our methods reduce the number of RAT checkpoints to 1/3 (from 48 down to 16) for an aggressive, 8-way superscalar processor with a 256-entry instruction window. Using a 0.18um process model we estimate that RAT power is reduced by 24%.

References

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K. C. Yeager, The MIPS R10000 Superscalar Microprocessor, IEEE MICRO, April, 1996.
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S. Palacharla, N. P. Jouppi, and J. E. Smith. Complexity-effective superscalar processors. In Proc. of the 24th Int'l Symposium on Computer Architecture, June 1997.
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R. P. Colwell and R. L. Steck, A 0.6um BiCMOS Processor with Dynamic Execution, In Proc. International Solid State Circuits Conference, Feb. 1995.
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D. Brooks, V. Tiwari M. Martonosi Wattch: A Framework for Architectural-Level Power Analysis and Optimizations, Proc of the 27th Int'l Symposium on Computer Architecture, 2000.
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P6 Power Data, Intel Corp.
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D. Burger and T. Austin, The Simplescalar Simulation Environment, Univ. of Wisconsin-Madison, Computer Sciences Dept. Technical Report.
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E. Jacobsen, E. Rotenberg, and J. E. Smith. Assigning Confidence to Conditional Branch Predictions. In Proc. Int'l Symposium on Microarchitecture, December 1996.
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D. Grunwald, A. Klusser, S. Manne and A. Plezkun, Confidence Estimation for Speculation Control, In Proc. of the 25th Int'l Symposium on Computer Architecture, June, 1998.
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Cited By

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  • (2023)Clockhands: Rename-free Instruction Set Architecture for Out-of-order ProcessorsProceedings of the 56th Annual IEEE/ACM International Symposium on Microarchitecture10.1145/3613424.3614272(1-16)Online publication date: 28-Oct-2023
  • (2018)STRAIGHTProceedings of the 51st Annual IEEE/ACM International Symposium on Microarchitecture10.1109/MICRO.2018.00019(121-133)Online publication date: 20-Oct-2018
  • (2016)Improvement of Renamed Trace Cache through the Reduction of Dependent Path Length for High Energy EfficiencyIEICE Transactions on Information and Systems10.1587/transinf.2015EDP7270E99.D:3(630-640)Online publication date: 2016
  • Show More Cited By

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      cover image ACM Conferences
      ISLPED '03: Proceedings of the 2003 international symposium on Low power electronics and design
      August 2003
      502 pages
      ISBN:158113682X
      DOI:10.1145/871506
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      New York, NY, United States

      Publication History

      Published: 25 August 2003

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      Author Tags

      1. checkpointing
      2. out-of-order execution
      3. power density
      4. power-aware
      5. renaming

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      ISLPED '03 Paper Acceptance Rate 90 of 221 submissions, 41%;
      Overall Acceptance Rate 398 of 1,159 submissions, 34%

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      Cited By

      View all
      • (2023)Clockhands: Rename-free Instruction Set Architecture for Out-of-order ProcessorsProceedings of the 56th Annual IEEE/ACM International Symposium on Microarchitecture10.1145/3613424.3614272(1-16)Online publication date: 28-Oct-2023
      • (2018)STRAIGHTProceedings of the 51st Annual IEEE/ACM International Symposium on Microarchitecture10.1109/MICRO.2018.00019(121-133)Online publication date: 20-Oct-2018
      • (2016)Improvement of Renamed Trace Cache through the Reduction of Dependent Path Length for High Energy EfficiencyIEICE Transactions on Information and Systems10.1587/transinf.2015EDP7270E99.D:3(630-640)Online publication date: 2016
      • (2012)Something old and something newProceedings of the 2012 ACM/IEEE international symposium on Low power electronics and design10.1145/2333660.2333748(385-390)Online publication date: 30-Jul-2012
      • (2012)Achieving reliable system performance by fast recovery of branch miss predictionJournal of Network and Computer Applications10.1016/j.jnca.2011.03.01535:3(982-991)Online publication date: 1-May-2012
      • (2011)CROBTransactions on high-performance embedded architectures and compilers III10.5555/1980776.1980785(115-134)Online publication date: 1-Jan-2011
      • (2011)CROBProceedings of the 2011 conference on Transactions on High-Performance Embedded Architectures and Compilers III - Volume 659010.1007/978-3-642-19448-1_7(115-134)Online publication date: 1-Jan-2011
      • (2010)On the latency and energy of checkpointed superscalar register alias tablesIEEE Transactions on Very Large Scale Integration (VLSI) Systems10.1109/TVLSI.2008.201212818:3(365-377)Online publication date: 1-Mar-2010
      • (2009)An energy-efficient checkpointing mechanism for out of order commit processorProceedings of the 2009 ACM/IEEE international symposium on Low power electronics and design10.1145/1594233.1594279(183-188)Online publication date: 19-Aug-2009
      • (2009)Checkpoint allocation and releaseACM Transactions on Architecture and Code Optimization10.1145/1582710.15827126:3(1-27)Online publication date: 2-Oct-2009
      • Show More Cited By

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