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Review of the Center for Computational Sciences, University of Tsukuba 2020 Review of the Center for Computational Sciences, University of Tsukuba 2020 筑波大学計算科学研究センター 外部評価報告書 September 2020 2020 年 9月 Center for Computational Sciences University of Tsukuba Review of the Center for Computational Sciences, University of Tsukuba 2014-2019 Foreword This volume contains the Report of the External Review for Center for Computational Scineces (CCS), University of Tsukuba, which was carried out in FY2019. The objective of the External Review was to evaluate the research activities of CCS during the period from FY2014 to FY2019 since the previous external review which was held in FY2013, and the future strategy and plans. Originally formed as the Center for Computational Physics (CCP) in 1992, the CCS was reorganized, expanded and relaunched under its current name in April 2004. The mission of the Center for Computational Sciences (CCS) is the promotion of "Multidisciplinary Computational Sciences" through enhanced cooperation between, and the fusion of, computational and computer sciences. The most important characteristics of the research collaboration in the CCS is “codesigning” where the needs from application fields and seeds from system technologies to make a balanced and optimized system development as well as application program development. As a unique research center where both computational and computer scientists work together, our codesigning for advanced High Performance Computing (HPC) research has been continued from the beginning until today. The CCS has developed several supercomputers, and conducted computational sciences in the areas of particle physics, astrophysics, nuclear physics, materials science, life science, environmental science, high performance computing technology, and information science including database technology and computational media. Also, the CCS plays a significant role as a nation-wide joint-use facility that provides computational resources for external scientific researchers in all of these areas all over the world. Since 2010, the CCS has been approved as a “national core-center” under the Advanced Interdisciplinary Computational Science Collaboration Initiative (AISCI) launched by the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan. After High Performance Computing Infrastructure (HPCI) project started under MEXT on 2012, the supercomputers at CCS have been partially contributed to this nation-wide resource sharing program. Before the External Review, we prepared the documents of Summary of Activities (Part I), Activities, Results and Collaborations in the research divisions and public relations (Part II), and Strategy and Future Plans (Part III), all of which are contained in this volume. The review was carried out on February 19th to 21st in 2020, where the all the activities in CCS was reported and a lot of discussion was made. The external review committee was composed of 11 members who were Prof. William Gropp (chair, National Center for Supercomputing Applications, USA), Prof. Masaki Sato (vice chair, the University of Tokyo, Japan), Prof. Chris Sachrajda (University of Southampton, UK), Prof. Lars Hernquist (Harvard University, USA), Prof. Pieter Maris (Iowa State University, USA), Prof. Angel Rubio (Max Planck Institute for Structure and Dynamics Matter, Germany and Flatiron Institute, USA), Prof. John Zhang (New York University Shanghai, China), Prof. Shiguang Miao (China Meteorological Administration, China), Prof. Hiroshi Nakashima (Kyoto University, Japan), Prof. Jeffrey Xu Yu (Chinese University of Hong Kong, Hong Kong), and Prof. Bruce H. Thomas (the University of South Australia, Australia). The external review committee reviewed the CCS activities very carefully, and in the report, endorsed the activities and future strategy and plans of the CCS. The report encourages us towards the further development of “Multidisciplinary Computational Sciences” in CCS. On behalf of CCS, I would like to thank most deeply all of the external review committee members for providing such a valuable report. Also, I specially appreciate a great cooperation by Prof. Gropp as chair and Prof. Sato as vice chair to summarize the report. At the end of this forword, I must note that this review discussion with the external review committee had been carried out just before the world wide infectious disease by the new type coronavirus started at the end of 2019 (COVID-19). Just a couple of weeks after the review -- 2 -- Review of the Center for Computational Sciences, University of Tsukuba 2014-2019 meeting, our life was totally changed including a strong restriction of transportation between countries which hugely impacted our research especially on world wide collaboration. Actually, one of the committee member could not join to in-person meeting at CCS due to regulation made by Japanese government for COVID-19, but we could make it through on-line interview and discussion with him. All other members could join, and we could carry out the review meeting completely on schedule. I think that we were merely lucky and am truly happy to complete this work. I hope all the health of people involved in this review work. August 2nd, 2020 Taisuke Boku Director of Center for Computational Sciences University of Tsukuba まえがき この報告書は、2019 年度に行われた、筑波大学計算科学研究センター（以下 CCS） の外部評価の結果をまとめたものである。外部評価の目的は、2013 年度に行われた前 回の外部評価以降の 2014 年度から 2019 年度までの活動、ならびに今後の戦略と計画に ついて評価を受けることである。 計算科学研究センターは、1992 年（平成 4 年）度に設立された計算物理学研究センタ ーを前身とし、2004 年（平成 16 年）4 月に改組・拡充により再設立された。CCS は、 科学諸分野と計算機科学分野の協働・融合を軸とした「学際計算科学」を推進している。 CCS における活動で最も特徴的なことは、応用分野のニーズと計算機システム技術の シーズの双方の観点からの議論により、問題解決のために最適化されたバランスのとれ た計算機システムを開発するコデザイン（codesigning）に基づく研究を行っていること である。これは、科学諸分野の研究者と計算機システム研究者の双方が共存するという、 我が国でも特別な CCS の研究環境だからこそなし得ることであり、CCS はその設立か ら今日に至るまでの研究を継続している。 CCS では、数々のスーパーコンピュータの開発を行うと共に、素粒子、宇宙、原子核、 物質、生命、地球環境、高性能計算システム、データ基盤、計算メディア等の科学の諸 領域における計算科学の研究を行っている。また、これらの計算科学研究に従事する国 内及び海外の研究者に計算機資源を提供する、全国共同利用施設としての役割も担って おり、2010 年（平成 22 年）には、文部科学省共同利用・共同研究拠点「先端学際計算 科学共同研究拠点」（Advanced Interdisciplinary Computational Science Collaboration Initiative: ACSCI）に認定された。さらに、2012 年（平成 24 年）に文部科学省において 「革新的ハイパフォーマンス・コンピューティング・インフラ」（High Performance -- 3 -- Review of the Center for Computational Sciences, University of Tsukuba 2014-2019 Computing Infrastructure: HPCI）が開始されて以来、CCS のスーパーコンピュータはその 計算資源の一翼を担っている。 外部評価に先立ち、資料として 2014 年度から 2019 年度の活動全体（Part I）、各研究 部門・研究分野及び広報室の活動実績（Part II）、今後の戦略と将来計画（Part III）を取 りまとめた（本冊子に掲載）。外部評価は、2020 年 2 月 19 日〜21 日の 3 日間に行わ れ、センターの活動を報告し、これについて外部評価委員と多くの詳細な議論が行われ た。評価委員会は、William Gropp 教授 (委員長, National Center for Supercomputing Applications, USA), 佐藤正樹教授 (副委員長, 東京大学), Chris Sachrajda 教授 (University of Southampton, UK), Lars Hernquist 教授 (Harvard University, USA), Pieter Maris 教授 (Iowa State University, USA), Angel Rubio 教授 (Max Planck Institute for the Structure and Dynamics of Matter, Germany and Flatiron Institute, USA), John Zhang 教授 (New York University Shanghai, China), Prof. Shiguang Miao 教授 (China Meteorological Administration, China), 中 島浩教授(京都大学), Jeffrey Xu Yu 教授 (Chinese University of Hong Kong, Hong Kong), Bruce H. Thomas 教授 (The University of South Australia, Australia)の計 11 名である。 外部評価委員は CCS における活動を注意深く評価し、本報告においてその活動と今 後の戦略と計画について支持している。本報告は「学際計算科学」に関する CCS とし ての今後の研究活動を強く勇気づけてくれるものである。CCS を代表し、外部評価委員 会の全ての委員に対し、このように価値ある報告書を作成頂いたことに感謝したい。特 に、委員長の Gropp 教授と副委員長の佐藤教授には、報告書取りまとめ作業におけるご 苦労に、特段の謝意を表したい。 この前書きの最後に、ぜひ特筆しておきたいことがある。本外部評価会議は、2019 年 末に始まった世界規模の新型コロナウィルス感染症拡大（COVID-19）が深刻化する、 まさに直前に行われた。会議のわずか数週間後には世界はこの歴史的大問題に直面し、 国を跨いだ移動制限を始めとする様々な問題によって我々の生活は一変し、特に国際的 な共同作業は大きな影響を受けることになった。事実、外部評価委員会のうち 1 名の委 員は、日本国が定めた海外からの渡航制限により、CCS における委員会に直接参加する ことが不可能となったが、他の全委員は問題なく参加し、当該委員もオンライン形式で 報告と議論に参加することができ、結果として会議は予定通り開催され滞りなく終了し た。このことについて、我々はまさに幸運であったとしか言いようがない。本外部評価 作業に携わった全ての方々の健康を祈り、前書きの結びとしたい。 2020 年 8 月 2 日 筑波大学 計算科学研究センター センター長 朴泰祐 -- 4 -- Review of the Center for Computational Sciences, University of Tsukuba 2014-2019 Member List of the External Review Committee 外部評価委員会委員リスト Name Research Field Title, Affiliation William Gropp Computer Science Director (Chair) 計算機科学 National Center for Supercomputing Applications, USA Masaki Sato Environmental Science Professor (Vice Chair) 地球科学 Atmosphere and Ocean Research Institute The University of Tokyo, Japan Chris Particle Physics Professor Sachrajda 素粒子物理学 Department of Physics and Astronomy University of Southampton, UK Lars Hernquist Astrophysics Professor 宇宙物理学 Harvard-Smithsonian Center for Astrophysics Harvard University, USA Pieter Maris Nuclear Physics Professor 原子核物理学 Iowa State University, USA Angel Rubio Material Science Director, Theory Department, Max Planck Institute for the 物質科学 Structure and Dynamics of Matter, Germany & Distinguish Research Scientist, Center for Computational Quantum Physics, Flatiron Institute, USA John Zhang Biological Science Professor 生命科学 NYU-ECNU Center for Computational Chemistry New York University Shanghai, China Shiguang Geoscience Professor, Director Miao 地球科学 Institute of Urban Meteorology China Meteorological Administration, China Hiroshi Computer Science Professor Nakashima 計算機科学 Academic Center for Computing and Media Studies Kyoto University, Japan -- 5 -- Review of the Center for Computational Sciences, University of Tsukuba 2014-2019 Jeffrey Xu Yu Database / Informatics Professor データベース/情報学 Department of Systems Engineering and Engineering Management Chinese University of Hong Kong, Hong Kong Bruce H. Media Science / Professor Thomas Informatics School of Information Technology and Mathematical メディア科学/情報学 Sciences The University of South Australia, Australia
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