ASPECT Newsletter #92

Hello everyone!

       This is ASPECT newsletter #92.

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:

#3293: Add missing benchmark to check script (proposed by gassmoeller; merged)
#3292: Reorder viscoelastic-plastic viscosity calculation (proposed by naliboff)
#3291: reduce storage for matrix-free gmg (proposed by tcclevenger; merged)
#3289: Add a mass flux statistics for the depth average postprocessor. (proposed by gassmoeller; merged)
#3287: Allow multiple output formats for depth average postprocessor (proposed by gassmoeller; merged)
#3285: Remove duplicated headers (proposed by gassmoeller; merged)
#3284: Reduce memory consumption of unity build on tester (proposed by gassmoeller; merged)
#3283: remove an unused variable (proposed by tjhei; merged)
#3282: remove constraint consistency check (proposed by tjhei; merged)
#3281: doc: remove incorrect @copydoc link (proposed by tjhei; merged)
#3265: Mesh def initial topo (proposed by anne-glerum; merged)
#3257: add drucker prager rheology module (proposed by naliboff; merged)
#3153: Rayleigh-Taylor Instability Benchmark (proposed by cedrict; merged)

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

#3290 parsing parameters for phase entry, should we allow empty entry in Utilities::parse_map_to_double_array (opened)
#3288 How large the used memory increases when using larger “GMRES solver restart length” (opened)
#3286 Implement phase change for rheology (opened and closed)

A list of all major changes since the last release can be found at this website .

Thanks for being part of the community!

Let us know about questions, problems, bugs or just share your experience by visting our [forum](, or by opening issues or pull requests on [Github](
Additional information can be found at our [official website](, and CIG's [ASPECT website](