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Published May 10, 2018 | Version v2.0.0
Software Open

ASPECT v2.0.0

  • 1. Colorado State University
  • 2. Clemson University

Description

We are pleased to announce the release of ASPECT 2.0.0. ASPECT is the Advanced Solver for Problems in Earth's ConvecTion. It uses modern numerical methods such as adaptive mesh refinement, multigrid, and a modular software design to provide a fast, flexible, and extensible mantle convection solver. ASPECT is available from

               https://aspect.geodynamics.org/

and the release is available from

    https://github.com/geodynamics/aspect/releases/tag/v2.0.0

This release includes the following changes:

  • New: Newton solver and defect correction Picard iterations for nonlinear problems (for the Stokes system)
  • Melt solver: Overhaul leading to improved performance and stability, better integration with other plugins
  • New: Material model with grain size evolution
  • New: Boundary temperature plugin with evolving core-mantle boundary temperature based on the heat flux through the core-mantle boundary
  • New: ASPECT can now compute the geoid in 3D spherical shell geometry
  • New: Operator splitting for reactions between compositional fields
  • New: Added a PREM gravity profile
  • Improved: Significantly reduced memory consumption in models that use many compositional fields
  • Improved: A large number of performance improvements for preconditioners, assembly, seismic tomography initial conditions, and lateral averaging
  • Improved: More flexibility for boundary and initial conditions, different plugins can be combined
  • Improved: The dynamic topography postprocessor now uses the consistent boundary flux method for computing surface stresses, which is significantly more accurate
  • New: Additional RHS force terms in the Stokes system can be added
  • New particle interpolators: nearest neighbor, bilinear least squares, harmonic average
  • New: Graphical user interface for the creation and modification of input parameter files
  • Many other fixes and small improvements.
  • Rework: Updated parameter and section names to make them more consistent and easier to understand. A script for updating parameter and source files is provided with the release.

A complete list of changes can be found at https://aspect.geodynamics.org/doc/doxygen/changes_between_1_85_80_and_2_80_80.html

Wolfgang Bangerth, Juliane Dannberg, Rene Gassmoeller, Timo Heister, Jacqueline Austermann, Menno Fraters, Anne Glerum, John Naliboff, and many other contributors.

Files

geodynamics/aspect-v2.0.0.zip

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