[HTML][HTML] ExaHyPE: An engine for parallel dynamically adaptive simulations of wave problems
Abstract ExaHyPE (“An Exascale Hyperbolic PDE Engine”) is a software engine for solving
systems of first-order hyperbolic partial differential equations (PDEs). Hyperbolic PDEs are …
systems of first-order hyperbolic partial differential equations (PDEs). Hyperbolic PDEs are …
Efficient GPU offloading with OpenMP for a hyperbolic finite volume solver on dynamically adaptive meshes
We identify and show how to overcome an OpenMP bottleneck in the administration of GPU
memory. It arises for a wave equation solver on dynamically adaptive block-structured …
memory. It arises for a wave equation solver on dynamically adaptive block-structured …
Space-Time Adaptive ADER-DG Finite Element Method with LST-DG Predictor and a posteriori Sub-cell WENO Finite-Volume Limiting for Simulation of Non …
IS Popov - Journal of Scientific Computing, 2023 - Springer
The space-time adaptive ADER finite element DG method with a posteriori correction
technique of solutions on subcells by the finite-volume ADER-WENO limiter was used to …
technique of solutions on subcells by the finite-volume ADER-WENO limiter was used to …
Spherical accretion of collisional gas in modified gravity I: self-similar solutions and a new cosmological hydrodynamical code
H Zhang, T Weinzierl, H Schulz… - Monthly Notices of the …, 2022 - academic.oup.com
The spherical collapse scenario has great importance in cosmology since it captures several
crucial aspects of structure formation. The presence of self-similar solutions in the Einstein …
crucial aspects of structure formation. The presence of self-similar solutions in the Einstein …
Dynamic task fusion for a block-structured finite volume solver over a dynamically adaptive mesh with local time stepping
Load balancing of generic wave equation solvers over dynamically adaptive meshes with
local time stepping is difficult, as the load changes with every time step. Task-based …
local time stepping is difficult, as the load changes with every time step. Task-based …
Task inefficiency patterns for a wave equation solver
H Schulz, GB Gadeschi, O Rudyy… - … : Enabling Massive Node …, 2021 - Springer
The orchestration of complex algorithms demands high levels of automation to use modern
hardware efficiently. Task-based programming with OpenMP 5.0 is a prominent candidate to …
hardware efficiently. Task-based programming with OpenMP 5.0 is a prominent candidate to …
Studies on the energy and deep memory behaviour of a cache-oblivious, task-based hyperbolic PDE solver
DE Charrier, B Hazelwood… - … Journal of High …, 2019 - journals.sagepub.com
We study the performance behaviour of a seismic simulation using the ExaHyPE engine with
a specific focus on memory characteristics and energy needs. ExaHyPE combines …
a specific focus on memory characteristics and energy needs. ExaHyPE combines …
SYCL compute kernels for ExaHyPE
CM Loi, H Bockhorst, T Weinzierl - arXiv preprint arXiv:2306.16731, 2023 - arxiv.org
We discuss three SYCL realisations of a simple Finite Volume scheme over multiple
Cartesian patches. The realisation flavours differ in the way how they map the compute …
Cartesian patches. The realisation flavours differ in the way how they map the compute …
teaMPI—replication-based resilience without the (performance) pain
P Samfass, T Weinzierl, B Hazelwood… - … Conference, ISC High …, 2020 - Springer
In an era where we can not afford to checkpoint frequently, replication is a generic way
forward to construct numerical simulations that can continue to run even if hardware parts …
forward to construct numerical simulations that can continue to run even if hardware parts …
Role-oriented code generation in an engine for solving hyperbolic PDE systems
The development of a high performance PDE solver requires the combined expertise of
interdisciplinary teams with respect to application domain, numerical scheme and low-level …
interdisciplinary teams with respect to application domain, numerical scheme and low-level …