[aspect-devel] ASPECT Newsletter #42

[Rene Gassmoeller]

Hello everyone!

This is ASPECT newsletter #42.
It automatically reports recently merged features and discussions about the ASPECT mantle convection code.


## Below you find a list of recently proposed or merged features:

#1985: update parameters (proposed by tjhei) https://github.com/geodynamics/aspect/pull/1985

#1983: Unify the screen output of the different solver schemes (proposed by jdannberg) https://github.com/geodynamics/aspect/pull/1983

#1982: parameter names without underscores (proposed by tjhei; merged) https://github.com/geodynamics/aspect/pull/1982

#1981: Fix deprecation warning (proposed by gassmoeller) https://github.com/geodynamics/aspect/pull/1981

#1980: Topography output to file postprocessor (proposed by lkaratun) https://github.com/geodynamics/aspect/pull/1980

#1978: [WIP] Always apply compressible preconditioner (proposed by gassmoeller) https://github.com/geodynamics/aspect/pull/1978

#1977: Optimize compute melt variables (proposed by gassmoeller; merged) https://github.com/geodynamics/aspect/pull/1977

#1976: Improve compressible preconditioner (proposed by gassmoeller; merged) https://github.com/geodynamics/aspect/pull/1976

#1975: WIP: fix bug in Newton solver which increases velocities (proposed by MFraters) https://github.com/geodynamics/aspect/pull/1975

#1974: WIP: fix bug in Newton solver which increases velocities (proposed by MFraters) https://github.com/geodynamics/aspect/pull/1974

#1973: implement simplified tests (proposed by gassmoeller; merged) https://github.com/geodynamics/aspect/pull/1973

#1972: use 2 eta in Schur complement (proposed by tjhei) https://github.com/geodynamics/aspect/pull/1972

#1971: 2.0 * eta for melt preconditioner (proposed by tjhei) https://github.com/geodynamics/aspect/pull/1971

#1970: Also fix the preconditioner for the melt case. (proposed by bangerth) https://github.com/geodynamics/aspect/pull/1970

#1968: Simplify error reporting. (proposed by bangerth; merged) https://github.com/geodynamics/aspect/pull/1968

#1966: Avoid a warning in release mode about an unused variable. (proposed by bangerth; merged) https://github.com/geodynamics/aspect/pull/1966

#1965: Fix missing factor of two in preconditioner. (proposed by bangerth; merged) https://github.com/geodynamics/aspect/pull/1965

#1963: add a link to the online version of CONTRIBUTING.md in the manual (proposed by jdannberg; merged) https://github.com/geodynamics/aspect/pull/1963

#1962: Unify rebuild of stokes matrix (proposed by gassmoeller; merged) https://github.com/geodynamics/aspect/pull/1962

#1961: Fix some typos (proposed by anne-glerum; merged) https://github.com/geodynamics/aspect/pull/1961

#1960: Average stress limiter and pre yield viscosity (proposed by anne-glerum) https://github.com/geodynamics/aspect/pull/1960

#1959: Make filtering hdf5 output an input parameter (proposed by gassmoeller; merged) https://github.com/geodynamics/aspect/pull/1959

#1952: Fix depth functions for initial topography (proposed by MFraters; merged) https://github.com/geodynamics/aspect/pull/1952

#1949: Add harmonic average particle interpolation scheme (proposed by hlokavarapu; merged) https://github.com/geodynamics/aspect/pull/1949

#1939: Fix Newton SPD debug test. (proposed by MFraters; merged) https://github.com/geodynamics/aspect/pull/1939

#1850: Refactor solver schemes (proposed by gassmoeller; merged) https://github.com/geodynamics/aspect/pull/1850


## And this is a list of recently opened or closed discussions:

#1984: Unify style of units in the declaration section of all plugins (opened) https://github.com/geodynamics/aspect/issues/1984

#1979: Update Gplates section in manual (opened) https://github.com/geodynamics/aspect/issues/1979

#1969: Rename IMPES scheme to something more accurate (opened) https://github.com/geodynamics/aspect/issues/1969

#1967: Add missing compressibility correction to the Stokes preconditioner (opened) https://github.com/geodynamics/aspect/issues/1967

#1964: Unify solver output (opened) https://github.com/geodynamics/aspect/issues/1964

#972: Modularize Nonlinear solvers (closed) https://github.com/geodynamics/aspect/issues/972


A list of all major changes since the last release can be found at https://aspect.dealii.org/doc/doxygen/changes_current.html.


Thanks for being part of the community!


Let us know about questions, problems, bugs or just share your experience by writing to aspect-devel at geodynamics.org, or by opening issues or pull requests at https://www.github.com/geodynamics/aspect.
Additional information can be found at https://aspect.dealii.org/, and https://geodynamics.org/cig/software/aspect/.
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