International Exascale Software Co-Design Workshop:

Initial Findings & Future Plans

William Tang Princeton University/Princeton Plasma Physics Lab

http://www.ncic.ac.cn/codesign

Guelin, China: October 29-31, 2013

CO-DESIGN 2013

CO-DESIGN 2013 GOALS & EXPECTATIONS

gather insights from successful experiences in “path to exascale” simulation applications & big data management experiences to help optimize a converged co-design path toward deployment of “big data and extreme-scale computing (BDEC)” in key areas of science and technology

-- associated focus:

(1) Hardware Architecture & Big Data Considerations

(2) Domain Applications; and (3) Algorithms & Software Challenges and Advances

CO-DESIGN 2013 INITIAL FINDINGS

Hardware Architecture and Big Data Considerations: - Summary (Rick Stevens)

(7 presentations)

- Perspectives on Big Data & Extreme Scale Computing in the US (William Harrod, US)

- Tsubame 2.0 to 3.0 Onwards to Exascale & Extreme Big Data (Satoshi Matsuoka, Japan)

- Perspectives on Big Data & Extreme Scale Computing in China(Depei Qian, China)

- Perspectives on Supercomputing in Europe: Lessons Learned from Energy Efficiency Considerations(Thomas Schulthess, Switzerland)

- Highlights of Milkyway-2 System(Yutong Lu, China)

- Large-Scale Visual Data Analysis(Chris Johnson, US)

- Challenges & Industrial Solutions at Extreme Scale(Zhimin Tang, China)

CO-DESIGN 2013 INITIAL FINDINGS

Domain Applications: (9 presentations) - Summary (Tim Germann)

- Co-Design Centers in the US & Exascale Co-Design for Materials in Extreme Environments (Tim Germann, US)

- Hybrid GPU-CPU Real-Time Simulations of Engineering Granular Flow (Wei Ge, China)

- Computational Biology Advances & Opportunities in Big Data & Extreme Computing (Rick Stevens, US)

- Climate Modeling Extreme Scale Co-Design Advances (Franck Capello, France)

- Particle-in-Cell Fusion Energy Turbulence Simulations @ Extreme Scale (William Tang, US)

- Development & Evaluation of High-Resolution Oceanic General Circulation Model (Yonggiang Yu, China)

- GPU Computing for Multiple Physics Coupling of ADS (Lei Yang, China)

- Exascale Computing Challenges in Engineering (Pooyan Dadvand, Spain)

- Recent Advances on HPC Applications in Chinese Academy of Sciences (Zhong Jin, China)

CO-DESIGN 2013 INITIAL FINDINGS

Algorithms & Software Challenges & Advances: (9 presentations) - Summary (David Keyes)

- The Way of Exascale Computer, The Viewpoint of a System Researcher (X.H. Xie, China)

- Extreme Scale Computing & Big Data Co-Design Challenges (Pete Beckman, US)

- Algorithmic Adaptations to Extreme Scale (David Keyes, Saudi Arabia)

- Simulation at Extreme Scale: Some Co-Design Thinking & Practices (Rong Tian, China)

- Accelerated Computing Unified with Communication towards Exascale (Taisuke Boku, Japan)

- Advances in Extreme Scale Applications Using GPU’s (Peng Wang, nVIDIA China and US)

- Scalable Domain Decomposition Methods for Computational Mechanics (Xiaochuan Cai, US)

- Iterative Linear Solvers for Post-Peta/Exascale Systems (Kengo Nakajima, Japan)

- The Hierarchical Domain Decomposition System for Post-Petascale Simulation (R. Shioya, Japan)

FUTURE PLANS FOR CO-DESIGN 2014

“Action Items” leading into Next International Exascale Co-Design Workshop hosted by China:

• Publication of journal-quality articles from Workshop Presentations?

• Building on “Lessons Learned” from presentations & discussions, what might be appropriate topical areas for upcoming workshops? -- Large data-driven discovery examples -- Successful deployment of VV&UQ illustrating measurable improvement in predictive capability -- Modern urban design approaches & impact; -- and other topics your suggestions are welcome!

• ‘Invitation only” – with maximum #invited speakers ~ 30? • Date: early November time-frame in 2014 ~ 2 days duration as part of HPC China 2014 in Guangzhou