International Exascale Software Co-Design Workshop: Initial Findings & Future Plans William Tang Princeton University/Princeton Plasma Physics Lab 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 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