# ASPECT Newsletter #134

**URL:** <https://community.geodynamics.org/t/aspect-newsletter-134/1971>\
**Category:** ASPECT\
**Created:** [August 31, 2021, 4:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-134/1971 "2021-08-31T16:00:26Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![rgassmoeller](https://yyz2.discourse-cdn.com/flex036/user_avatar/community.geodynamics.org/rgassmoeller/32/49_2.png) [@rgassmoeller](https://community.geodynamics.org/u/rgassmoeller)\
**Post date:** [August 31, 2021, 4:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-134/1971/1 "2021-08-31T16:00:26Z")

</div>

Hello everyone!

This is ASPECT newsletter #134.  
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:

[#4335](https://github.com/geodynamics/aspect/pull/4335): Unify failing solver output. (implemented by [gassmoeller](https://github.com/gassmoeller))  
[#4334](https://github.com/geodynamics/aspect/pull/4334): use SimulatorAccess in mesh deformation (implemented by [tjhei](https://github.com/tjhei))  
[#4333](https://github.com/geodynamics/aspect/pull/4333): Improve documentation of changelog (implemented by [gassmoeller](https://github.com/gassmoeller))  
[#4332](https://github.com/geodynamics/aspect/pull/4332): print total wall time after restarts (implemented by [elodie-kendall](https://github.com/elodie-kendall))  
[#4331](https://github.com/geodynamics/aspect/pull/4331): Print cheap stokes iterations immediately (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei))  
[#4330](https://github.com/geodynamics/aspect/pull/4330): Avoid unhelpful error message (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei))  
[#4329](https://github.com/geodynamics/aspect/pull/4329): Update the pressure scaling once per nonlinear iteration (implemented by [gassmoeller](https://github.com/gassmoeller))  
[#4327](https://github.com/geodynamics/aspect/pull/4327): Fix Github CI for crashing tests (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei))  
[#4326](https://github.com/geodynamics/aspect/pull/4326): Remove some wrong input file patterns (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#4325](https://github.com/geodynamics/aspect/pull/4325): GMG: fix order of RHS correction [WIP] (implemented by [tjhei](https://github.com/tjhei))  
[#4324](https://github.com/geodynamics/aspect/pull/4324): GMG: add assemble() function (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#4323](https://github.com/geodynamics/aspect/pull/4323): Added a limiter to the linear least squares particle interpolation algorithm (implemented by [sac-bsa](https://github.com/sac-bsa))  
[#4322](https://github.com/geodynamics/aspect/pull/4322): GMG: print number of levels (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#4321](https://github.com/geodynamics/aspect/pull/4321): www: update citing database (implemented by [tjhei](https://github.com/tjhei); reviewed by [bangerth](https://github.com/bangerth))  
[#4320](https://github.com/geodynamics/aspect/pull/4320): update citation (implemented by [tjhei](https://github.com/tjhei); reviewed by [tjhei](https://github.com/tjhei))  
[#4319](https://github.com/geodynamics/aspect/pull/4319): remove more cxx14::make\_unique (implemented by [tjhei](https://github.com/tjhei); reviewed by [tjhei](https://github.com/tjhei))  
[#4318](https://github.com/geodynamics/aspect/pull/4318): update readme that we need c++14 now (implemented by [tjhei](https://github.com/tjhei); reviewed by [bangerth](https://github.com/bangerth))  
[#4317](https://github.com/geodynamics/aspect/pull/4317): require cmake 3.1.0 (implemented by [tjhei](https://github.com/tjhei); reviewed by [bangerth](https://github.com/bangerth))  
[#4316](https://github.com/geodynamics/aspect/pull/4316): rm more DEAL\_II\_VERSION\_GTE(9,3,0) (implemented by [zjiaqi2018](https://github.com/zjiaqi2018); reviewed by [tjhei](https://github.com/tjhei))  
[#4315](https://github.com/geodynamics/aspect/pull/4315): GMG: rm if DEAL\_II\_VERSION\_GTE(9,3,0) (implemented by [zjiaqi2018](https://github.com/zjiaqi2018); reviewed by [tjhei](https://github.com/tjhei))  
[#4256](https://github.com/geodynamics/aspect/pull/4256): GMG: support mesh deformation (implemented by [tjhei](https://github.com/tjhei); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#4219](https://github.com/geodynamics/aspect/pull/4219): [deal.II 9.3] Simplify some code using C++14 capture semantics. (implemented by [bangerth](https://github.com/bangerth); reviewed by [tjhei](https://github.com/tjhei))  
[#4188](https://github.com/geodynamics/aspect/pull/4188): [deal.II 9.3] Use std::make\_unique instead of std\_cxx14::make\_unique. (implemented by [bangerth](https://github.com/bangerth); reviewed by [tjhei](https://github.com/tjhei))  
[#3764](https://github.com/geodynamics/aspect/pull/3764): [deal.II 9.3] Modernization of face loops. (implemented by [bangerth](https://github.com/bangerth); reviewed by [tjhei](https://github.com/tjhei))

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

[#4328](https://github.com/geodynamics/aspect/issues/4328) Some question about initial topography and material model (opened)  
[#4302](https://github.com/geodynamics/aspect/issues/4302) Negative temperature in StickAir Layer. (closed)

A list of all major changes since the last release can be found at [this website](https://aspect.geodynamics.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 visting our [forum](https://community.geodynamics.org/c/aspect), or by opening issues or pull requests on [Github](https://www.github.com/geodynamics/aspect).  
Additional information can be found at our [official website](https://aspect.geodynamics.org/), and CIG’s [ASPECT website](https://geodynamics.org/cig/software/aspect/).
