Parallel Computational Technologies 15th International Conference, PCT 2021, Volgograd, Russia, March 30 – April 1, 2021, Revised Selected Papers

This book constitutes refereed proceedings of the 15th International Conference on Parallel Computational Technologies, PCT 2021, held in March-April 2021. Due to the COVID-19 pandemic the conference was held online.

The 22 revised full papers presented were carefully reviewed and selected from 89 submissions. The papers are organized in topical sections on high performance architectures, tools and technologies; parallel numerical algorithms; supercomputer simulation.

High Performance Architectures, Tools and Technologies.- Equivalent Transformations of Some Kinds of Computing Structures of Non-linear Recurrent Expressions for Reconfigurable Computing Systems.- Development and Practical Application of Methods for Detecting Similar Supercomputer Jobs.- Detecting Changes in Communication Properties of Parallel Programs by InfiniBand Traffic Analysis.- Transformation of Graphs with Associative Operations in Terms of the Set@l Programming Language.- Parallel Numerical Algorithms.- GPU-Accelerated Fuzzy Inference Based on Fuzzy Truth Values.- Deflation of Periodic Orbits in Large-Scale Systems: Algorithm and Parallel Implementation.- Parallel Computations for Solving Multicriteria Mixed-Integer Optimization Problems.- Parallel Intelligent Computing in Algebraic Problems.- CUDA Implementation of an Algorithm for Batch Mode Detection of Collisions.- Functionally Arranged Data for Algorithms with Space-Time Wavefront.- Exploring the Limits of Problem-Specific Adaptations of SAT Solvers in SAT-based Cryptanalysis.- FRaGenLP: A Generator of Random Linear Programming Problems for Cluster Computing Systems.- Application of the AmgX Library to the Discontinuous Galerkin Methods for Elliptic Problems.- Conjugate Direction Methods for Parallel Deflation.- Supercomputer Simulation.- Research of the Mechanism of External Hormonal Regulation of the Development of Phyto- and Zooplankton Populations Using Supercomputer Technologies.- Luthien: A Parallel PIC Code for Modeling the Interaction of Focused Electron Beams with Plasma.- Simulation of Heat and Mass Transfer in Open Geothermal Systems: a Parallel Implementation.- Supercomputer-based Simulation of the Hydrodynamics of River Mouth Areas.- System for the Visualization of Meshes of Big Size Obtained from Gas-Dynamic Simulations.- Finite Element Simulation of the Influence of the Bending Roll Profile on the Stress-strain State of Billets for Longitudinal-welded Rolled Pipes.- Digital Twins of Geological Objects: Development and Use.- A Parallel Algorithm to Compute the Transport of Suspended Particles Based on 3D Models.