This book constitutes the refereed proceedings of the 16th International Conference on Parallel Computational Technologies, PCT 2022, held in Dubna, Russia, during March 29–31, 2022.The 22 full papers included in this book were carefully reviewed and selected from 60 submissions.

High Performance Architectures, Tools and Technologies.- VGL Rating: a Novel Benchmarking Suite for Modern Supercomputing Architectures.- HPC TaskMaster – Task Efficiency Monitoring System for the Supercomputer Center.- Constructing an Expert System for Solving Astrophysical Problems Based on the Ontological Approach.- HPC Resources of South Ural State University.- Parallel Numerical Algorithms.- Comparative Analysis of Parallel Methods for Solving SLAEs in Three-Dimensional Initial-Boundary Value Problems.- Optimization of the Computational Process for Solving Grid Equations on a Heterogeneous Computing System.- Parallel Methods for Solving Saddle Type Systems.- Compact LRnLA Algorithms for Flux-based Numerical Schemes.- Analysis of Block Stokes-Algebraic Multigrid Preconditioners on GPU Implementations.- Implementation of the Algebraic Multigrid Solver Designed for Graphics Processing Units Based on the AMGCL Framework.- Measuring the Effectiveness of SAT-based Guess-and-Determine Attacks in Algebraic Cryptanalysis.- Tuning of a Matrix-Matrix Multiplication Algorithm for Several GPUs Connected by Fast Communication Links.- Visualizing Multidimensional Linear Programming Problems.- Supercomputer Simulation.- Quantum-Chemical Calculations of the Enthalpy of Formation of Some Tetrazine Derivatives.- A New Approach to the Supercomputer Simulation of Carbon Burning Sub-Grid Physics in Ia Type Supernovae Explosion.- Parallel Simulations of Dynamic Interaction between Train Pantographs and an Overhead Catenary Line.- Construction of a Parallel Algorithm for the Numerical Modeling of Coke Sediments Burning from the Spherical Catalyst Grain.- MPI-based PFEM-2 Method Solver for Convection-Dominated CFD Problems.- Modeling of Two-Phase Fluid Flow Processes in a Fractured-Porous Type Reservoir Using Parallel Computations.- Kinetic Modeling of Isobutane Alkylation with Mixed C4 Olefins and Sulfuric Acid as a Catalyst Using the Asynchronous Global Optimization Algorithm.- Simulation of Nonstationary Thermal Fields in Permafrost Using Multicore Processors.- High-Performance Calculations for Modeling the Propagation of Allergenic Plant Pollen in an Atmospheric Boundary Layer

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