The aim of the PaCT-2021 is to give an overview of new developments, applications, and trends in parallel computing technologies. We sincerely hope that the conference will help our community to deepen understanding of parallel computing technologies by providing a forum for an exchange of views between scientists and specialists from all over the world. We welcome your active participation. Main topics: All technological aspects of the applications of parallel computer systems; High level parallel programming languages and systems; Methods and tools for parallel solution of large-scale problems; Languages, environments and software tools supporting parallel processing; Operating systems, scheduling, mapping, load balancing; General architectural concepts; Cellular automata; Performance measurement and analysis tools; Active knowledge and program construction; Software for grid and cloud computing; Scalable computing; Fragmentation and aggregation of algorithms and programs; Programs assembling and reuse; Distributed algorithms

16th International conference on parallel computing technologies = PaCT 2021 : proceedings (13-18 september 2021, Kaliningrad, Russia) / Institute of Computationa l Mathematics and Mathematica l Geophysics Siberian branch of the Russian Academy of Sciences [и др.] ; editor V. Malyshkin. – Kaliningrad, 2021 - (Lecture Notes in Computer Science ; Vol. 12942).