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Underworld Geodynamics Community

Underworld Geodynamics Community
Geodynamics, Computation and Education
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DocumentationTricks Of The TradeUnderworld CodeScienze della Terra e dell'AmbienteInglese
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Autori Juan Carlos Graciosa, Louis Moresi

Parallel computation puts many CPUs to work on solving a problem much more quickly than one CPU alone. But this only works if the tasks are carefully scheduled and the additional CPUs are not waiting around for something to do. How do we choose the right number of processors for a given problem ?

Underworld WorkshopsGetting StartedGeodynamicsScienze della Terra e dell'AmbienteInglese
Pubblicato

You are invited to a full-day workshop on Underworld — a computational Geodynamics / Tectonics modelling framework. This is an excellent opportunity for researchers, students, and professionals interested in computational geodynamics and Earth science modelling to learn about Underworld.

Underworld CodeTricks Of The TradeScienze della Terra e dell'AmbienteInglese
Pubblicato
Autore Julian Giordani

TL; DR: Underworld is now Singularity-enabled, making it easier and somewhat quicker to use compared to traditional HPC installs. We demonstrate results using over 10,000 CPUs and more than one billion unknowns for solving the Stokes equation with Underworld 2.16

GeodynamicsScienze della Terra e dell'AmbienteInglese
Pubblicato
Autore Juan Carlos Graciosa

Introduction and benchmarking The convection of the Earth’s mantle is usually modelled as an incompressible process, referred to as the Boussinesq approximation. However, in the Earth’s mantle, the pressure increase associated with depth also increases the density due to self-compression (King et al. 2010). In some applications, this compressibility may be non-negligible and modelling it may be desirable.

Scienze della Terra e dell'AmbienteInglese
Pubblicato
Autore Haibin Yang

Abstract Numerical models have become an indispensable tool for understanding and predicting the flow of ice sheets and glaciers. Here we present the full-Stokes software package Underworld to the glaciological community. The code is already well established in simulating complex geodynamic systems. Advantages for glaciology are that it provides a full-Stokes solution for elastic–viscous–plastic materials and includes mechanical anisotropy.

Scienze della Terra e dell'AmbienteInglese
Pubblicato
Autore Romain Beucher

Yeah, one repo, one vision! In an effort to simplify maintenance and compatibility between Underworld and UWGeodynamics, we have decided to merge the codes into a single repository. Starting with version 2.13, UWGeodynamics will now live under Underworld. All UWGeodynamics functionalities and workflows will remain available to the users.

PetscInstallationUnderworld CodeScienze della Terra e dell'AmbienteInglese
Pubblicato
Autore Romain Beucher

https://doi.org/10.59350/t7ghx-8f823 The following is compatible with Ubuntu 20.04 under Windows 10/11 WSL 2 ( Windows Subsystem for Linux). PETSc, the Portable, Extensible Toolkit for Scientific Computation is the main dependency required for building Underworld. In the following, I will describe my current workflow for configuring and installing PETSc on Linux.

Scienze della Terra e dell'AmbienteInglese
Pubblicato
Autore Neng Lu

Free surface in geodynamics simulations Geodynamic simulations increasingly rely on models with a true free surface to investigate questions of tectonic deformation, mantle convection, and coupling of surface processes and lithosphere dynamics. Historically, most mantle convection simulations have been performed with free-slip boundary conditions at the surface.