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ScalA18: 9th Workshop on Latest Advances in Scalable Algorithms for Large-Scale Systems
held in conjunction with the SC18: The International Conference on High Performance Computing, Networking, Storage and Analysis
in cooperation with the IEEE Computer Society Technical Consortium on High Performance Computing (TCHPC)
November 12, 2018, Dallas, TX, USA
http://www.csm.ornl.gov/srt/conferences/Scala/2018 https://sc18.supercomputing.org/session/?sess=sess158
Novel scalable scientific algorithms are needed in order to enable key science applications to exploit the computational power of large-scale systems. This is especially true for the current tier of leading petascale machines and the road to exascale computing as HPC systems continue to scale up in compute node and processor core count. These extreme-scale systems require novel scientific algorithms to hide network and memory latency, have very high computation/communication overlap, have minimal communication, and have no synchronization points.
Scientific algorithms for multi-petaflop and exa-flop systems also need to be fault tolerant and fault resilient, since the probability of faults increases with scale. Resilience at the system software and at the algorithmic level is needed as a crosscutting effort. Finally, with the advent of heterogeneous compute nodes that employ standard processors as well as GPGPUs, scientific algorithms need to match these architectures to extract the most performance. This includes different system-specific levels of parallelism as well as co-scheduling of computation. Key science applications require novel mathematical models and system software that address the scalability and resilience challenges of current- and future-generation extreme-scale HPC systems.
Workshop Chairs:
- Vassil Alexandrov, Barcelona Supercomputing Center, Spain - Al Geist, Oak Ridge National Laboratory, USA - Jack Dongarra, University of Tennessee, Knoxville, USA
Workshop Program Chair:
- Christian Engelmann, Oak Ridge National Laboratory, USA
Workshop Program Committee:
* Hartwig Anzt, University of Tennessee, Knoxville, USA * Rick Archibald, Oak Ridge National Laboratory, USA * Hans-Joachim Bungartz, Technical University of Munich, Germany * Franck Cappello, Argonne National Laboratory and University of Illinois at Urbana Champaign, USA * James Elliott, Sandia National Laboratories, USA * Nahid Emad, University of Versailles SQ, France * Wilfried Gansterer, University of Vienna, Austria * Kirk E. Jordan, IBM T.J. Watson Research, USA * Dieter Kranzlmueller, Ludwig-Maximilians-University Munich, Germany * Sriram Krishnamoorthy, Pacific Northwest National Laboratory, USA * Ignacio Laguna, Lawrence Livermore National Laboratory, USA * Ying Liu, University of Chinese Academy of Sciences, China * Piotr Luszczek, University of Tennessee, Knoxville, USA * Michael Mascagni, Florida State University, USA * Ron Perrot, University of Oxford, UK * Yves Robert, ENS Lyon, France * Stuart Slattery, Oak Ridge National Laboratory, USA * Keita Teranishi, Sandia National Laboratories, USA
Workshop Program
* 09:00-10:00 Session 1
* 09:00-09:10 Introduction: Vassil Alexandrov (Barcelona Supercomputing Center, Spain). * 09:10-10:00 Keynote 1: "Few Scheduling Problems for Resilience at Scale," Yves Robert (ENS Lyon, France).
* 10:00-10:30 Coffee break (coffee provided) * 10:30-12:30 Session 2
* 10:30-11:10 Keynote 2: "HPC and AI as Drivers for Industrial Engagement," Alison Kennedy (Hartree Centre, Daresbury Laboratory, UK). * 11:10-11:30 Paper 1: "Event-Triggered Communication in Parallel Computing," Soumyadip Ghosh, Kamal Saha, Vijay Gupta, and Gretar Tryggvason. * 11:30-11:50 Paper 2: "Communication Reduced Multi-time-step Algorithm for Real-time Wind Simulation on GPU-based Supercomputers," Naoyuki Onodera, Yasuhiro Idomura, Yussuf Ali, and Takashi Shimokawabe. * 11:50-12:10 Paper 3: "Communication avoiding multigrid preconditioned conjugate gradient method for extreme scale multiphase CFD simulations," Yasuhiro Idomura, Takuya Ina, Susumu Yamashita, Naoyuki Onodera, Susumu Yamada, and Toshiyuki Imamura. * 12:10-12:30 Paper 4: "Non-collective Scalable Global Network Based on Local Communications," Marco Berghoff and Ivan Kondov
* 12:30-14:00 Lunch break (lunch on your own) * 14:00-15:00 Session 3
* 14:00-14:20 Paper 5: "Iterative Randomized Algorithms for Low Rank Approximation of Tera-scale Matrices with Small Spectral Gaps," Chander J. Iyer, Alex Gittens, Christopher D. Carothers, and Petros Drineas. * 14:20-14:40 Paper 6: Shift-Collapse Acceleration of Generalized Polarizable Reactive Molecular Dynamics for Machine Learning-Assisted Computational Synthesis of Layered Materials," Kuang Liu, Subodh Tiwari, Chunyang Sheng, Aravind Krishnamoorthy, Sungwook Hong, Pankaj Rajak, Rajiv K. Kalia, Aiichiro Nakano, Ken-ichi Nomura, Priya Vashishta, Manaschai Kunaseth, Saber Naserifar, William A. Goddard III, Ye Luo, Nichols A. Romero, and Fuyuki Shimojo. * 14:40-15:00 Paper 7: "Machine Learning-Aided Numerical Linear Algebra: Convolutional Neural Networks for the Efficient Preconditioner Generation," Markus Götz and Hartwig Anzt.
* 15:00-15:30 Coffee break (coffee provided) * 15:30-17:30 Session 4
* 15:30-16:10 Keynote 3: "Hierarchical Algorithms on Hierarchical Architectures," David Keyes (King Abdullah University of Science and Technology, Saudi Arabia). * 16:10-16:30 Paper 8: "Low Thread-count Gustavson: A multithreaded algorithm for sparse matrix-matrix multiplication using perfect hashing Matrices with Small Spectral Gaps," James Elliott and Christopher Siefert. * 16:30-16:50 Paper 9: "A general-purpose hierarchical mesh partitioning method with node balancing strategies for large-scale numerical simulations," Fande Kong, Roy H. Stogner, Derek R. Gaston, John W. Peterson, Cody J. Permann, Andrew E. Slaughter, and Richard C. Martineau. * 16:50-17:10 Paper 10: "Dynamic Load Balancing of Plasma and Flow Simulations," Gerrett Diamond, Cameron Smith, Eisung Yoon, and Mark Shephard. * 17:10-17:30 Paper 11: "On Advanced Monte Carlo Methods for Linear Algebra on Advanced Accelerator Architectures," Anton Lebedev and Vassil Alexandrov.
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Christian Engelmann, Ph.D.
Senior R&D Staff Scientist Computer Science Research Group Computer Science and Mathematics Division Oak Ridge National Laboratory
Mail: P.O. Box 2008, Oak Ridge, TN 37831-6173, USA Phone: +1 (865) 574-3132 / Fax: +1 (865) 576-5491 e-Mail: engelmannc@ornl.govmailto:engelmannc@ornl.gov / Home: www.christian-engelmann.infohttp://www.christian-engelmann.info