- 2024/06 - 現在 JST さきがけ 光でつなぐ情報と物理の融合分野の開拓[光融合] 領域アドバイザー
- 2023/11 - 現在 JST 創発 後藤パネル 創発アドバイザー
- 2016/04 - 現在 湘南会議 運営委員会委員
- 2016 - 現在 ACM international symposium on information and communication technology (SoICT) Technical Program Committee
- 2013 - 現在 International Symposium on Computing and Networking (CANDAR) General Co-Chair(2021,2023), Program Co-Chair (2018-2019), Workshop chair (2020)
- 2012/06 - 現在 電子情報通信学会コンピュータシステム研究会(CPSY) 顧問(2023-現在)、委員長(2021-2023)、副委員長(2019-2020)、幹事(2016-2017)
- 2022/11 - 2024/11 IEICE 最先端コンピューティング技術小特集(英文論文誌 D)2023年12月号、 2025年1月号 編集委員長(2025)、編集委員(2023)
- 2017 - 2024/08 xSIG Organizing Chair (2024), , Program Chair (2021), Program Vice Chair (2020)
- 2022/05 - 2024/05 IPSJ Transactions on Advanced Computing Systems Associate Editors-in-Chief
- 2018 - 2024/01 HPCAsia Technical Program Committee (Track Chair@2024)
- 2017 - 2023 IEEE International Symposium on Parallel and Distributed Processing with Applications (ISPA) Technical Program Committee
- 2016/04 - 2023 ACM/IEEE Program Committee, International Symposium on Networks-on-Chip
- 2021/11 - 2022/11 国際会議CANDAR CSA Workshop Co-Chair
- 2019 - 2022 Forum on Information Technology Committee
- 2021/06 - 電子情報通信学会 コンピュータシステム研究会(CPSY)
- 2020/08 - 2020/08 IEEE Trans. on Computers, Special Issue on Communications for Many-Core Processors and Accelerators, Review Committee
- 2020 - 2020 ACM International Conference on Computing Frontiers (CF2020) TPC
- 2011/12 - 2019/07 The IEICE Transactions on Information and Systems ED, Special Section on Parallel and Distributed Computing and Networking Guest Associate Editors(2011-2015), Guest Editor(2016-2017), Guest Editor-in-Chief(2018)
- 2018/01 - 2019/06 文部科学省 将来のHPCI の在り方に関する検討ワーキンググループ
- 2019 - 2019 The 5th International Workshop on High Performance Interconnection Networks and Interconnects (HPINI 2019) TPC
- 2017 - 2019 CANDAR2017-2019 Organizer, Special Session [Graph Golf],
- 2013 - 2019 Workshop on Synthesis And System Integration of Mixed Information technologies Technical Program Committee
- 2018 - IEEE/ACM International Symposium on Cluster, Cloud, and Grid Computing (CCGrid) Architectures and Networking track TPC
- 2017/08 - The International Conference on Parallel Processing (ICPP) 2017 Technical Program Committee
- 2017/06 - The 14th International Symposium on Pervasive Systems, Algorithms, and Networks (I-SPAN 2017) Technical Program Committee
- 2017/06 - International Conference on Supercomputing 2017 External Program Committee
- 2017/05 - IEEE/ACM International Symposium on Cluster, Cloud, and Grid Computing (CCGrid) 2017 Technical Program Committee
- 2013/04 - 2017/03 情報処理学会 論文誌コンピューティングシステム(ACS) 編集委員
- 2016/05 - 2017 電子情報通信学会 平成28 年度電子情報通信学会代議員
- 2016 - 2017 10th ACM/IEEE International Symposium on Networks-on-Chip (NOCS 2016) Special Sessions Chairs
- 2015/06 - 2017 電子情報通信学会 ロードマップ委員会
- 2015/06 - 2017 電子情報通信学会 著作権管理委員会
- 2015 - 2017 IEICE, Information and System Society Secretary
- 2017 - IEEE/ACM International Symposium on Cluster, Cloud, and Grid Computing (CCGrid) ARCHITECTURES track PC Member
- 2017 - ICS 2017 External TPC
- 2016/10 - The 34th IEEE International Conference on Computer Design(ICCD) Technical Program Committee
- 2016/09 - IEEE Cluster 2016 Technical Program Committee
- 2016 - The Workshop on Synthesis And System Integration of Mixed Information technologies Technical Program Committee
- 2016 - FIT2016 第15回情報科学技術フォーラム研究会
- 2015 - IEEE/ACM International Symposium on Cluster, Cloud, and Grid Computing (CCGrid) ARCHITECTURES track PC Member
- 2014 - APDCM 2014 (Workshop on Advances in Parallel and Distributed Computational Models), work- shop of IPDPS2014 TPC
- 2014 - Alchemy workshop, ICCS (Cairns, Australia) TPC
- 2014 - The 11th IEEE International Conference on Embedded Software and Systems (ICESS-2014) TPC
- 2014 - The 23rd International Conference on Parallel Architectures and Compilation Techniques (PACT) External TPC
- 2013 - The 19th International Conference on Parallel and Distributed Systems (ICPADS), Program Committee Member (Multicore Computing and Parallel/Distributed Architecture) Program Committee Member (Multicore Computing and Parallel/Distributed Architecture)
- 2013 - The 4th International Workshop on Advances in Networking and Computing Technical Program Committee
- 2013 - The First International Symposium on Computing and Networking - Across Practical Development and Theoretical Research Technical Program Committee
- 2013 - SASIMI 2013 (The 18th Workshop on Synthesis And System Integration of Mixed Information technologies) Technical Program Committee
- 2013 - the International Conference on Parallel Processing(ICPP'13) Technical Program Committee
- 2013 - Shonan Meeting:Many-cores and On-chip Interconnects, (Hayama, NII) Organizer
- 2010 - 2012 System-Level Memory/Communication Design and Networks on Chip Track, Asia and South Pacific Design Automation Conference (ASP-DAC) 2010 Technical Program Committee
- 2007 - 2012 先進的計算基盤シンポジウム(SACSIS) プログラム委員会プログラム委員
- 2012 - the 48th Design Automation Conference (DAC) Expert External Reviewer
- 2012 - Cat.1: Network Applications and Big Data Processing, the 10th International Conference on Optical Internet (COIN2012) Technical Commitee
- 2008 - 2011 情報処理学会 計算機アーキテクチャ研究会運営委員
- 2011 - 情報処理学会 第73回全国大会プログラム編成WG委員
- 2011 - International Conference on Networking and Computing PC member
- 2007 - 2010 情報処理学会 論文誌 コンピューティングシステム(IPSJ Transactions on Advanced Computing Systems)ゲスト編集委員
- 2010 - 情報処理学会創立50 周年記念全国大会デモ展示企画「今ドキッのIT」 実行委員会
- 2010 - the 16th IEEE Pacific Rim International Symposium on Dependable Computing (PRDC’10) Organizing Committee (Local Arrangement)
- 2010 - The 16th International Conference on Parallel and Distributed Systems (ICPADS), Program Committee Member (Multicore Computing and Parallel/Distributed Architecture) Program Committee Member (Multicore Computing and Parallel/Distributed Architecture)
- 2010 - 先進的計算基盤シンポジウム(SACSIS) 2010 プログラム副委員長
- 2008 - 先進的計算基盤シンポジウム(SACSIS) 2008 組織委員会
- 2007 - 先進的計算基盤シンポジウム(SACSIS) 2007 組織委員会
- 2006 - 先進的計算基盤シンポジウム(SACSIS) 2006 組織委員会
- 2006 - 情報処理学会 第68回全国大会プログラム編成WG委員
- 2006 - ASIAN'06 11th Annual Asian Computing Science Conference Local Organization Committee
- ACM/IEEE International Symposium on Networks-on-Chip (NOCS 2016, 2017) Technical Program Committee
- Workshop on Advances in Parallel and Distributed Computational Models, workshop of IPDPS Technical Program Committee
- International Conference on Future Computational Technologies and Applications (FUTURE COMPUTING) Technical Program Committee
- IEEE International Workshop on High-Performance Interconnection Networks in the Exascale and Big-Data Era Technical Program Committee
- 電子情報通信学会 「知識ベース」執筆委員 員(6 群5 編,7 章クラスタコンピュータ7.1 章クラスタの構成方法,9 章インタコネクション技術9.2 章直接網)
- 情報処理学会 論文誌ジャーナル/JIP編集委員会