JustRelax.jl : a Julia package for geodynamic modeling with matrix-free solvers

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justrelaxjl___a_julia_package-20260306092602410608.pdf (2.02 MB)

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2026

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CC-BY-4.0
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Abstract

JustRelax.jl is an open-source, highly portable, and high-performance Julia (Bezanson et al., 2017) package designed for geodynamic modeling. It employs the Accelerated Pseudo-Transient (APT) (Räss et al., 2022) method to solve the Stokes and diffusion equations, making it well-suited to exploit Graphics Processing Units (GPUs). JustRelax.jl incorporates a wide range of features critical to computational geodynamics, including complex and highly non-linear rheologies, free surface, and a particle-in-cell method to advect material information. Several of the features available in JustRelax.jl are outsourced to specialized external packages, reducing the core code base, and improving maintainability and reusability.

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https://doi.org/10.25358/openscience-14595

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https://openscience.ub.uni-mainz.de/handle/20.500.12030/14616

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The journal of open source software, 11, 118, Open Journals, Chigago, IL, 2026, https://doi.org/10.21105/joss.09365

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