任軒正博/Ren Xuanzhengbo

ren@hpc.itc.nagoya-u.ac.jp

任軒正博 / Ren Xuanzhengbo

Educational Background

2023.4 - Now
Ph.D. candidate,
Graduate School of Informatics, Nagoya University
2018.9 - 2021.6
Master of Engineering,
Computer Network Infomation Center, Chinese Academy of Sciences, University of Chinese Academy of Sciences
2013.9 - 2018.6
Bachelor of Engineering,
College of Computer Science and Technology, Harbin Engineering University

Programming: Python / Fortran / C/C++
Parallel Computing: OpenMP / Kokkos / MPI / OpenACC
Other Tools: Node.js
Certifications:
- 第三級アマチュア無線士 (Amateur Third-Class Radio Operator)
- 日本語能力試験 (JLPT) N1
Launguages:
- 中文/Chinese (Native)
- 日本語/Japanese (Business Level)
- English (Business Level)

Xuanzhengbo Ren, Tetsuya Hoshino, Daichi Mukunoki, and Takahiro Katagiri, "Porting NICAM Microphysics to Kokkos: A Case Study in Performance Portability for Atmospheric Models", IPSJ Transactions on Advanced Computing Systems, 2025. (In press)
Xuanzhengbo Ren, Yuta Kawai, Tetsuya Hoshino, Hirofumi Tomita, Takahiro Katagiri, Daichi Mukunoki, and Seiya Nishizawa, "Learning-Augmented Performance Model for Tensor Product Factorization in High-Order FEM", IEEE Access, 2026. (accepted, minor revision) [Preprint]

Xuanzhengbo Ren, Yuta Kawai, Hirofumi Tomita, Seiya Nishizawa, Takahiro Katagiri, Tetsuya Hoshino, Masatoshi Kawai, Daichi Mukunoki, Toru Nagai, "Performance Evaluation of Loop Body Splitting for Fast Modal Filtering in SCALE-DG on A64FX ", in Proceedings of the 2025 International Conference on High Performance Computing in Asia-Pacific Region Workshops. Hsinchu Taiwan: ACM, Feb. 2025, pp. 36-44. [DOI:10.1145/3703001.3724385]
Xuanzhengbo Ren, Masatoshi Kawai, Tetsuya Hoshino, Takahiro Katagiri, Toru Nagai, "Auto-tuning Mixed-precision Computation by Specifying Multiple Regions"
- Journal Version: Concurrency and Computation: Practice and Experience, 2024, Special Issue on Parallel and Distributed Computing and Networking (CANDAR 2023), pp. e8326, [DOI:10.1002/cpe.8326]
- Conference Version: 2023 Eleventh International Symposium on Computing and Networking (CANDAR 2023), Matsue, Japan, 2023, pp. 175-181, [DOI:10.1109/CANDAR60563.2023.00031]
Xuanzhengbo Ren, Yuqi Zhao, Lin Wu, Jinrong Jiang, Changbin Zhang, Xiao Tang, Lina Han, Mingming Zhu, Zifa Wang, "Towards efficient digital governance of city air pollution using technique of big atmospheric environmental data", IOP Conference Series: Earth and Environmental Science, IOP Publishing 2020, Vol. 502(1), pp. 012031 [DOI:10.1088/1755-1315/502/1/012031]

任軒正博, 河合佑太, 富田浩文, 西澤誠也, 片桐孝洋, 星野哲也, 河合直聡, 永井亨. SCALE-DGのModal Filteringにおけるループボディ分割の自動チューニング. 第197回HPC研究会, 沖縄産業支援センター沖縄, 2024年12月16日
Xuanzhengbo Ren, Yuta Kawai, Hirofumi Tomita, Seiya Nishizawa, Takahiro Katagiri, Masatoshi Kawai, Toru Nagai, "Implementing Fast Modal Filtering of SCALE-DG", 2024 IEEE International Conference on Cluster Computing Workshops (CLUSTER Workshops), Kobe, Japan, 2024, pp. 150-151, [DOI:10.1109/CLUSTERWorkshops61563.2024.00033.]. [Research Poster]
任軒正博, 河合佑太，富田浩文, 片桐孝洋, 西澤誠也, 星野哲也, 河合直聡, 永井亨. 不連続ガラーキン法を基づいた大気力学コアの性能評価と改善について. 第193回HPC研究会, 北海道大学札幌, 2024年3月18日.
Xuanzhengbo Ren, Yuta Kawai, Hirofumi Tomita, Takahiro Katagiri, Seiya Nishizawa, Tetsuya Hoshino, Masatoshi Kawai, Toru Nagai, "An Evaluation of Discontinuous Galerkin Method based Global Nonhydrostatic Atmospheric Dynamical Core on A64FX Platform", HPC Asia 2024, Nagoya, Japan. [Research Poster][Poster No.10]