The 20th IEEE International Workshop on Parallel and Distributed Scientific and Engineering Computing (PDSEC-19) May 24, 2019, Hilton Rio de Janeiro Copacabana, Rio de Janeiro, Brazil, to be held in conjunction with IPDPS 2019. http://cse.stfx.ca/~pdsec19/ Important Dates: Paper submission due . . . . . . . . . . . . . . February 11, 2019 (Extended) Notification of Acceptance . . . . . . . . . . . March 03, 2019 Final camera-ready paper . . . . . . . . . . . . March 15, 2019 Workshop Date . . . . . . . . . . . . . . . . . May 24, 2019 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. PDSEC Special Track: Performance and Software Engineering in Scientific Computing PDSEC workshop will also include a special track which focuses on engineering software and structure maintenance or codes in scientific research areas, in particular in the field of engineering. Papers submitted to this special track are expected to cover the topics such as: * Results and challenges from the application of performance analysis tools on computational codes in the engineering field, * Experiences using special frameworks for software infrastructure maintenance, * Best-practice results on scientific code lifecycle management. Paper Submission: https://easychair.org/conferences/?conf=pdsec2019 Organizing Committee General Chairs Ioana Banicescu, Mississipi State University, USA Peter Strazdins, The Australian National University, Australia Program Chairs Eric Aubanel, University of New Brunswick, Canada Raphaël Couturier, University of Franche-Comté, France Steering Committee Thomas Rauber, University of Bayreuth, Germany Gudula Runger, Chemnitz University of Technology, Germany Laurence T. Yang (Chair), St. Francis Xavier University, Canada Publicity Chair Suzanne Michelle Shontz, University of Kansas, USA Web Chair Sazzad Hussain, St. Francis Xavier University, Canada