Evaluation of implicit‐explicit additive Runge‐Kutta integrators for the HOMME‐NH dynamical core

CJ Vogl, A Steyer, DR Reynolds… - Journal of Advances …, 2019 - Wiley Online Library
Abstract The nonhydrostatic High‐Order Method Modeling Environment (HOMME‐NH)
atmospheric dynamical core supports acoustic waves that propagate significantly faster than …

Multi-level spectral deferred corrections scheme for the shallow water equations on the rotating sphere

FP Hamon, M Schreiber, ML Minion - Journal of Computational Physics, 2019 - Elsevier
Efficient time integration schemes are necessary to capture the complex processes involved
in atmospheric flows over long periods of time. In this work, we propose a high-order, implicit …

Parallel-in-time multi-level integration of the shallow-water equations on the rotating sphere

FP Hamon, M Schreiber, ML Minion - Journal of Computational Physics, 2020 - Elsevier
The modeling of atmospheric processes in the context of weather and climate simulations is
an important and computationally expensive challenge. The temporal integration of the …

Performance analysis of fully explicit and fully implicit solvers within a spectral element shallow-water atmosphere model

KJ Evans, RK Archibald, DJ Gardner… - … Journal of High …, 2019 - journals.sagepub.com
Explicit Runge–Kutta methods and implicit multistep methods utilizing a Newton–Krylov
nonlinear solver are evaluated for a range of configurations of the shallow-water dynamical …

On the use of finite difference matrix-vector products in Newton-Krylov solvers for implicit climate dynamics with spectral elements

CS Woodward, DJ Gardner, KJ Evans - Procedia Computer Science, 2015 - Elsevier
Efficient solutions of global climate models require effectively handling disparate length and
time scales. Implicit solution approaches allow time integration of the physical system with a …

Progress in fast, accurate multi-scale climate simulations

WD Collins, H Johansen, KJ Evans… - Procedia Computer …, 2015 - Elsevier
We present a survey of physical and computational techniques that have the potential to
contribute to the next generation of high-fidelity, multi-scale climate simulations. Examples of …

Existing Fortran interfaces to Trilinos in preparation for exascale ForTrilinos development

KJ Evans, MT Young, BS Collins, SR Johnson… - 2017 - osti.gov
This report summarizes the current state of Fortran interfaces to the Trilinos library within
several key applications of the Exascale Computing Program (ECP), with the aim of …

[PDF][PDF] Evaluation of Implicit-Explicit Additive Runge-Kutta

CJ Vogl, A Steyer, DR Reynolds, PA Ullrich… - 2019 - researchgate.net
The Energy Exascale Earth System Model (E3SM) is an ongoing effort to produce 31
actionable projections of variability and change in the Earth system. Advances in com-32 …

[PDF][PDF] On the Use of Finite Difference Matrix-Vector Products inNewton-Krylov Solvers for Implicit Climate Dynamics withSpectral Elements

CS Woodward, DJ Gardner, KJ Evans - 2015 - osti.gov
Efficient solutions of global climate models require effectively handling disparate length and
time scales. Implicit solution approaches allow time integration of the physical system with a …