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Title
Japanese:Enabling Dynamic Approximate Computing for HPC Applications 
English:Enabling Dynamic Approximate Computing for HPC Applications 
Author
Japanese: 和田康孝, Yoshiyuki Morie, 小林諒平, 坂本龍一.  
English: Yasutaka Wada, Yoshiyuki Morie, Ryohei Kobayashi, Ryuichi Sakamoto.  
Language English 
Journal/Book name
Japanese:Journal of Information Processing 
English:Journal of Information Processing 
Volume, Number, Page Volume 33        Page 668-674
Published date Oct. 15, 2025 
Publisher
Japanese:情報処理学会 
English:Information Processing Society of Japan 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
Official URL http://dx.doi.org/10.2197/ipsjjip.33.668
 
DOI https://doi.org/10.2197/ipsjjip.33.668
Abstract Power and energy consumption are becoming the most important restrictions on driving computer systems. Especially, HPC systems still require more performance despite their limited power supply, and it is necessary to explore methodologies to enhance their performance within this limitation. Approximate computing (AC) is a promising technique for optimizing the trade-offs among application execution performance, application output correctness, and power consumption during execution. However, applying AC sometimes causes unexpected effects on the output and performance due to cache behavior, compiler optimization, and so on. This paper discusses dynamic approximate computing methods, which enable changing data precision in applications at runtime, for more flexible and effective approximate computing (AC). This paper also evaluates the benefits and drawbacks of dynamic AC with some high-performance computing (HPC) applications and workloads.

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