The 21st IEEE International Workshop on Parallel and Distributed Scientific and Engineering Computing (PDSEC-2020) May 22, 2020, Hilton New Orleans Riverside, New Orleans, Louisiana, USA to be held in conjunction with IPDPS 2020. http://cse.stfx.ca/~pdsec20/ Important Dates: Paper submission due . . . . . . . . . . . . . . February 14, 2020 Notification of Acceptance . . . . . . . . . . . March 6, 2020 Final camera-ready paper . . . . . . . . . . . . March 15, 2020 Workshop Date . . . . . . . . . . . . . . . . . May 22, 2020 Scope and Interests: The technological trends in HPC system evolution indicates an increasing burden placed on application developers due to the management of the unprecedented complexity levels of hardware and its associated performance characteristics. Many existing scientific applications codes are unlikely to perform well on future systems without major modifications or even complete rewrites. In the future, it will be necessary to utilize, in concert, many characteristics such as multiple levels of parallelism, many lightweight cores, complex memory hierarchies, novel I/O technology, power capping, system-wide temporal/spatial performance heterogeneity and reliability concerns. The parallel and distributed computing (PDC) community has developed new programming models, algorithms, libraries and tools to meet these challenges in order to accommodate productive code development and effective system use. However, the scientific application community still needs to identify the benefit through practical evaluations. Thus, the focus of this workshop is on methodologies and experiences used in scientific and engineering applications and algorithms to achieve sustainable code development for better productivity, application performance and reliability. In particular, we will focus on the following topics in parallel and distributed scientific and engineering applications, and not limited to: * Scalable parallel and distributed algorithms supporting science and engineering applications. * Performance portability across heterogeneous architectures. * Performance modeling and simulation for the execution of scalable scientific applications on new heterogeneous architectures. * Big scientific data. * Graph analytics with their (scientific) applications. * Code modernization methodologies and experiences for adapting the changes in future computing systems . * Languages for scientific computing on hybrid systems (e.g. Python, MPI+X where X is OpenMP, OpenCL, CUDA etc.). * Use cases of enterprise distributed computing technology (such as MapReduce, Data Analytics and Machine-learning tools) in scientific and engineering applications. Paper Submission: https://easychair.org/conferences/?conf=pdsec2020 Organizing Committee General Chairs Raphaël Couturier, University of Franche-Comté, France Peter Strazdins, The Australian National University, Australia Program Chairs Eric Aubanel, University of New Brunswick, Canada Sabine Roller, University of Siegen, Germany Steering Chairs Laurence T. Yang, St. Francis Xavier University, Canada Thomas Rauber, University of Bayreuth, Germany Gudula Runger, Chemnitz University of Technology, Germany Publicity Chair Suzanne Michelle Shontz, University of Kansas, USA Web Chair Sazzad Hussain, St. Francis Xavier University, Canada