Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger 14 pptx

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_2 doc

... Motivating Adaptive Techniques 21 1.5 Conclusion Variability and leakage are major technology challenges for both present and future integrated circuits, and the adoption of adaptive techniques ... convenient for a nominal supply voltage of 1.1V!Temperature dependence is a significant factor for adaptive scaling to lower supply voltage20 David Scott, Alice Wang 1.4.3 Transistor Design for ... circuits and systems is conventionally judged by its leakage versus “on” current. Figure 1 .14 shows such plots for three different technologies [14] . The in-dividual data points for each different...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_3 doc

... Experimental results have been obtained for both 90nm and 65nm CMOS technology nodes. A. Wang, S. Naffziger (eds.), Adaptive Techniques for Dynamic Processor Optimization, DOI: 10.1007/978-0-387-76472-6_2, ... scaling and tuning for the 65nm LP-CMOS ringo. Let us now investigate the frequency-scaling and tuning ranges offered by AVS and ABB in 65nm LP-CMOS. For this purpose, we determined the dynamic ... Power and Frequency Tuning The ultimate use of the AVS and ABB schemes is for performance tuning with performance being the optimal combination of frequency and power, i.e. the lowest power for...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_4 pptx

... informa-tion, more sophisticated control is possible for further power reduction. A. Wang, S. Naffziger (eds.), Adaptive Techniques for Dynamic Processor Optimization, DOI: 10.1007/978-0-387-76472-6_3, ... both the active and the standby modes and raises VTH by 0.25V in the standby mode. Chapter 2 Technological Boundaries of Voltage and Frequency Scaling 45 based on voltage and frequency ... with support for dynamic voltage scaling and dynamic frequency scaling”, IEEE Journal of Solid-State Circuits, November 2002, Vol. 37, No. 11, pp. 144 1 144 7 [8] V. Gutnik and A. Chandrakasan,...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_6 pdf

... expected to last till the lifetime of for Ultra -dynamic Voltage Scaled Systems A. Wang, S. Naffziger (eds.), Adaptive Techniques for Dynamic Processor Optimization, DOI: 10.1007/978-0-387-76472-6_5, ... detect the droop and dynamically respond by lowering frequency. The maximum frequency can then by increased by 32% for this large voltage droop, improving average performance for the workload. ... of fixed VCC and adaptive VCC, (b) Comparison of adaptive VCC and adaptive VCC+VBS [8]. (© 2003 IEEE) Using adaptive VCC in conjunction with adaptive body bias (adaptive VBS)...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_7 potx

... [1] V. Gutnik and A. Chandrakasan, “Embedded power supply for low-power DSP,” IEEE Trans. VLSI Syst., vol. 5, no. 4, pp. 425–435, Dec. 1997. [2] A. Sinha and A. Chandrakasan, Dynamic power ... D. Blaauw, “Statistical analysis and optimization for VLSI: timing and power,” New York, Springer, pp. 79–132, 2005. Chapter 5 Adaptive Supply Voltage Delivery for U-DVS Systems 103 0.2 0.4 ... transistor read-buffer formed by M7/M8. (© [2007] IEEE) Lastly, for an ultra -dynamic voltage scaling design, it is important to note that the trade-off between cell area and read-current/read...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_9 pot

... architecture is defined, the microprocessor passes through logic, A. Wang, S. Naffziger (eds.), Adaptive Techniques for Dynamic Processor Optimization, DOI: 10.1007/978-0-387-76472-6_7, © Springer Science+Business ... essentially an FET wire; and NAND and NOR gate paths consisting of a series of 4-high NAND and 3-high NOR gates respectively. Simulations were performed at two frequencies, F and F/3 where F was ... systematic noise and compensated for using dynamic voltage and frequency scaling (DVFS). Define ArchitectureMeetsPerformanceTargetPass TimingFabricationFunctional TestingMeetsPerformanceTargetBin...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_12 ppt

... of this microarchitecture performed by Herbert et al. [7]. in Multi-Clock Processors A. Wang, S. Naffziger (eds.), Adaptive Techniques for Dynamic Processor Optimization, DOI: 10.1007/978-0-387-76472-6_9, ... proposed by Butts and Sohi [5] and complements Wattch’s dynamic power model. The model uses estimates of the number of transistors (scaled by design-dependent factors) in each structure tracked by ... Nguyen and J.L. Burns, “A 32-bit powerPC system-on-a-chip with support for dynamic voltage scaling and dynamic frequency scaling,” IEEE Journal of Solid-State Circuits, Volume 37, Issue 11, pp. 144 1 144 7,...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_13 pdf

... completion and, in any case, ‘real’ additions do not use purely random operands [13]. Nevertheless, a much cheaper unit can supply respectable performance by adapting its timing to the oper-ands ... dependent. A simple example is a processor s ALU operation which typically may include options to MOVE, AND, ADD or MULTIPLY operands. A MOVE is a fast operation and an AND, be-ing a bitwise operation, ... performance than FI-T and was more complex. However, these results show that the speedups applied by FI-CP and FI-T are largely independent. The final energy-delay2 reduction offered by...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_14 pptx

... discussion of error correction and dynamic cache line disable or reconfiguration options. in SRAM Design A. Wang, S. Naffziger (eds.), Adaptive Techniques for Dynamic Processor Optimization, DOI: 10.1007/978-0-387-76472-6_11, ... designing stable SRAM cells that meet product density and voltage requirements. This chapter examines various dynamic and adaptive techniques for mitigating some of these common challenges in ... collapsing latches and combining pipeline stages – in what was, initially, a reasonably balanced pipeline – reduces overall throughput by, typically, Chapter 11 Dynamic and Adaptive Techniques in...

Adaptive Techniques for Dynamic Processor Optimization Theory and Practice by Alice Wang and Samuel Naffziger_17 pot

... Statistical Analysis and Optimization for VLSI: Timing and Power Ashish Srivastava, Dennis Sylvester, and David Blaauw ISBN 978-0-387-26049-9, 2005 Chapter 12 The Challenges of Testing Adaptive Designs ... Software-Based Self-testing for Embedded Processor Cores”, IEEE Intetrnational Test C440. [17] Wei-Cheng Lai, Kwang-Ting Cheng, “Instruction-Level DFT for Testing Processor and IP Cores in System-on-a-Chip”, ... PmaxLarge Guardband for Power measurment variabilitySmall Guardband for Test environment issues Adaptive Op. Point Figure 12.18 Comparison of operating point with and without adaptation....

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