Documentation for our software and help on learning how to apply modelling tools to geophysical problems
Underworld Code
Underworld is built around the idea of active Lagrangian tracer particles that carry history and composition information as the material deforms. How do we combine this information with our symbolic mathematical framework ?
Underworld Code
In Underworld3, the time derivative is a symbolic object. It appears in the solver's strong form as a SymPy expression, alongside the constitutive stress and the body force.
Documentation
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 ?
Documentation
The Underworld Community has been supporting usage of Docker containers for developing and running Underworld powered scientific models. They provide a good option to control the running environment (dependencies). Docker container can be used for developing the code base but creating a suitable development workflow has proven challenging so far
Underworld Code
How does Underworld scale on a HPC? In this post we showcase how Underworld 2.11 scales across two of Australia's premiere HPC systems. * Gadi - https://nci.org.au/our-systems/hpc-systems * Magnus - https://pawsey.org.au/systems/magnus/ The reference model chosen for this scaling showcase
Documentation
The new generation of Apple Mac comes with the new Apple Silicon (M1) chip which has an Arm architecture (as opposed to the older generation that had i386 Intel processor). This brings all manner of troubles and requirements for the development of codes.
Documentation
To test scalability we run weak scaling tests on various HPC machines to check the numerical framework remains robust when pushing for higher fidelity models.
Tricks of the Trade
As mentioned, packages can be installed directly from our conda channel. You may however want to build your own package at some point in the future or you may want to fix some of ours by submitting a Pull Request on github (You are more welcome to do so...) The
Tricks of the Trade
Version control systems and online-communities such as Github have made contributing to the development of opensource software incredibly easy. That is assuming that people get over their initial fear of sharing their code! In this short blog post I go through how to submit a pull request to one of
Underworld Code
Sharing a workflow environment is also paramount if we want to make sure that reproducibility can be effectively tested. An environment management system such as conda allows us to do so.
Documentation
As the old truism states, the best way to learn is by doing. This guide can get you from zero to hero in 60 seconds - give or take.
Underworld Code
-------------------------------------------------------------------------------- Version 2.8 of Underworld has been released recently. As with all major releases, this release brings numerous new features, enhancements and bug fixes. A summary of changes may be found within the usual CHANGES.md [https://github.com/underworldcode/underworld2/blob/v2.8.0b/CHANGES.md] file. As
