2013 International Conference on Field-Programmable Technology (FPT) 2013
DOI: 10.1109/fpt.2013.6718362
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Exploiting stochastic delay variability on FPGAs with adaptive partial rerouting

Abstract: Aggressive transistor scaling will soon lead us to the physical upper-bound of process technology, where stochastic process variability dominates the timing performance of FPGA components. In this paper, a variation-aware partial-rerouting method is proposed to mitigate and take advantage of the effect of delay variability due to process variation. The variation in logic delay across each FPGA (variation map) is measured on commercial FPGAs and is used to assess the effectiveness and potential gain of the prop… Show more

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Cited by 6 publications
(6 citation statements)
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“…The efficient combination of LUT mapping and placement results in over 10 percent critical path delay improvement according to MonteCarlo experiments. In this direction, a variationaware chip-wise routing method is presented in [29]. On top of VPR router, they enhance the related cost function and timing analysis to include information extracted from variability maps of actual FPGAs.…”
Section: Related Workmentioning
confidence: 99%
“…The efficient combination of LUT mapping and placement results in over 10 percent critical path delay improvement according to MonteCarlo experiments. In this direction, a variationaware chip-wise routing method is presented in [29]. On top of VPR router, they enhance the related cost function and timing analysis to include information extracted from variability maps of actual FPGAs.…”
Section: Related Workmentioning
confidence: 99%
“…In Fig. 2, Non Crit T is set to 20% of the 20 paths and therefore the 5 least critical paths (16-20) are released and rerouted [7]. The resultant path delays after partial rerouting is illustrated in Fig.…”
Section: Figmentioning
confidence: 99%
“…1. Second, we can release a proportion of noncritical paths during the variation-aware rerouting phase, thus increasing the available routing resources for time-critical routes [7].…”
Section: Motivation Of Partial Reroutingmentioning
confidence: 99%
See 1 more Smart Citation
“…The efficient combination of LUT mapping and placement results in over 10% critical path delay improvement according to MonteCarlo experiments. In this direction, a variation-aware chip-wise routing method is presented in [46]. On top of VPR router, they enhance the related cost function and timing analysis to include information extracted from variability maps of actual FPGAs.…”
Section: Mitigation At Cad Levelmentioning
confidence: 99%