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Conference Papers Year : 2023

Maximizing Computing Accuracy on Resource-Constrained Architectures


With the growing complexity of applications, designers need to fit more and more computing kernels into a limited energy or area budget. Therefore, improving the quality of results of applications in electronic devices with a constraint on its cost is becoming a critical problem. Word Length Optimization (WLO) is the process of determining bit-width for variables or operations represented using fixed-point arithmetic to trade-off between quality and cost. State-of-the-art approaches mainly solve WLO given a quality (accuracy) constraint. In this paper, we first show that existing WLO procedures are not adapted to solve the problem of optimizing accuracy given a cost constraint. It is then interesting and challenging to propose new methods to solve this problem. Then, we propose a Bayesian optimization based algorithm to maximize the quality of computations under a cost constraint (i.e., energy in this paper). Experimental results indicate that our approach outperforms conventional WLO approaches by improving the quality of the solutions by more than 170%.
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hal-03885240 , version 1 (05-12-2022)


  • HAL Id : hal-03885240 , version 1


Van-Phu Ha, Olivier Sentieys. Maximizing Computing Accuracy on Resource-Constrained Architectures. DATE 2023 - 26th IEEE/ACM Design, Automation and Test in Europe, Apr 2023, Antwerp, Belgium. pp.1-6. ⟨hal-03885240⟩
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