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Numerical Study of High-Dimensional Optimization Problems Using a Modification of Polyak’s Method
AbstractA modification of Polyak’s special method of convex optimization is proposed. The properties of the corresponding algorithm are studied by...
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Synergetic Build-up of National Competence Centres All over Europe
This chapter presents the rationale behind and the implementation strategy for the setup of National Competence Centres for HPC and associated...
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Load Balanced Particle Simulation with Automated Algorithm Selection
ls1 mardyn is a molecular dynamics (MD) simulation framework for multiphase and multicomponent investigations at small scales with application in...
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A Picture Is Worth a Thousand Numbers—Enhancing Cube’s Analysis Capabilities with Plugins
In the last couple of years, supercomputers became increasingly large and more and more complex. Performance analysis tools need to adapt to the...
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Influence of Noisy Environments on Behavior of HPC Applications
AbstractMany contemporary HPC systems expose their jobs to substantial amounts of interference, leading to significant run-to-run variation. For...
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Towards Energy Efficient Computing Based on the Estimation of Energy Consumption
The amount of computation power in the world keeps increasing as well as the computation needs by the industry and society. That increases also the...
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Mixed Order Mesh Curving
Linear hybrid unstructured meshes are elevated to mixed-order meshes in response to geometry curvature. The linear meshes are elevated to the...
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Decaf: Decoupled Dataflows for In Situ Workflows
In situ workflows manage the coordination and communication in a directed graph of heterogeneous tasks executing simultaneously in an...
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A Three-level Extension of the GDSW Overlap** Schwarz Preconditioner in Three Dimensions
The GDSW (Generalized Dryja–Smith–Widlund) preconditioner is a two-level overlap** Schwarz domain decomposition preconditioner [23] with exact...
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Driving a Petascale HPC Center with Octoshell Management System
Running any computing center is a complex task. With the growth of scales and costs such tasks become challenges. So the top supercomputer sites,...
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Information Graph Visualization Using AlgoView Software Tool
AbstractOne of the approaches to the study of the information structure of algorithms is the analysis of information graphs. These are complex...
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Brinkman Penalization and Boundary Layer in High-Order Discontinuous Galerkin
In this chapter we look into a high-order representation of complex geometries by the Brinkman penalization method. We focus on the effect of this...
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Exploratory Time-Dependent Flow Visualization via In Situ Extracted Lagrangian Representations
This chapter considers exploratory flow visualization of time-dependent vector fields via in situ extraction of Lagrangian representations. The...
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Wavelet adaptive proper orthogonal decomposition for large-scale flow data
The proper orthogonal decomposition (POD) is a powerful classical tool in fluid mechanics used, for instance, for model reduction and extraction of...
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The Role of Machine Learning and Artificial Intelligence for High-Performance Computing
High-performance computing has recently been challenged by the advent of data analytics, machine learning and artificial intelligence. In this...
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HPC for Weather Forecasting
Numerical weather prediction (NWP) is one of the first applications of scientific computing and remains an insatiable consumer of high-performance...
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Proximity Portability and in Transit, M-to-N Data Partitioning and Movement in SENSEI
In high-performance parallel in situ processing, the term in transit processing refers to those configurations where data must move from a producer...
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Hadronic Contributions to the Anomalous Magnetic Moment of the Muon from Lattice QCD
The Standard Model of Particle Physics describes three of the four known fundamental interactions: the strong interaction between quarks and gluons,...
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An Overview of the Topology ToolKit
This software paper gives an overview of the features supported by the Topology ToolKitTopology ToolKit (TTK), which is an Open-sourceopen-source...