# ASPECT Newsletter #133

**URL:** <https://community.geodynamics.org/t/aspect-newsletter-133/1951>\
**Category:** ASPECT\
**Created:** [August 17, 2021, 4:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-133/1951 "2021-08-17T16:00:17Z")\
**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 17, 2021, 4:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-133/1951/1 "2021-08-17T16:00:17Z")

</div>

Hello everyone!

This is ASPECT newsletter #133.  
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:

[#4314](https://github.com/geodynamics/aspect/pull/4314): Use BoundingBox in the generation of particles. (implemented by [bangerth](https://github.com/bangerth))  
[#4313](https://github.com/geodynamics/aspect/pull/4313): disable precompiled header for Intel compiler (implemented by [tjhei](https://github.com/tjhei); reviewed by [bangerth](https://github.com/bangerth))  
[#4311](https://github.com/geodynamics/aspect/pull/4311): Change the representative point to include initial topography in the box model geometry (implemented by [Djneu](https://github.com/Djneu))  
[#4310](https://github.com/geodynamics/aspect/pull/4310): Add missing mapping (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei))  
[#4309](https://github.com/geodynamics/aspect/pull/4309): Remove unnecessary computation (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei))  
[#4307](https://github.com/geodynamics/aspect/pull/4307): Remove unused MaterialModelOutputs (implemented by [anne-glerum](https://github.com/anne-glerum); reviewed by [tjhei](https://github.com/tjhei))  
[#4306](https://github.com/geodynamics/aspect/pull/4306): Add conductivity to MaterialProperties Property all\_properties (implemented by [anne-glerum](https://github.com/anne-glerum); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#4305](https://github.com/geodynamics/aspect/pull/4305): Adding recent publication, Gouiza and Naliboff (implemented by [ljhwang](https://github.com/ljhwang); reviewed by [tjhei](https://github.com/tjhei))  
[#4304](https://github.com/geodynamics/aspect/pull/4304): Update documenation of drucker prager parse\_parameters() (implemented by [anne-glerum](https://github.com/anne-glerum); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#4303](https://github.com/geodynamics/aspect/pull/4303): Do not compare against NaN time (implemented by [anne-glerum](https://github.com/anne-glerum); reviewed by [gassmoeller](https://github.com/gassmoeller))  
[#4301](https://github.com/geodynamics/aspect/pull/4301): GMG Stokes: minor fix (implemented by [zjiaqi2018](https://github.com/zjiaqi2018); reviewed by [tjhei](https://github.com/tjhei))  
[#4300](https://github.com/geodynamics/aspect/pull/4300): Fix spherical velocity postprocessor (implemented by [gassmoeller](https://github.com/gassmoeller); reviewed by [tjhei](https://github.com/tjhei))  
[#4299](https://github.com/geodynamics/aspect/pull/4299): GMG Newton: correct Stokes rhs (implemented by [zjiaqi2018](https://github.com/zjiaqi2018); reviewed by [tjhei](https://github.com/tjhei))  
[#4254](https://github.com/geodynamics/aspect/pull/4254): Use the reinit function for MaterialModelInputs (implemented by [anne-glerum](https://github.com/anne-glerum); reviewed by [bangerth](https://github.com/bangerth))  
[#4218](https://github.com/geodynamics/aspect/pull/4218): simple plume cookbook in 2D (implemented by [cedrict](https://github.com/cedrict); reviewed by [bangerth](https://github.com/bangerth))  
[#4185](https://github.com/geodynamics/aspect/pull/4185): thick\_shell\_grav\_bench (implemented by [cedrict](https://github.com/cedrict); reviewed by [bangerth](https://github.com/bangerth))

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

[#4312](https://github.com/geodynamics/aspect/issues/4312) Compiling issues with deal.ii-master on Frontera (opened and closed)  
[#4308](https://github.com/geodynamics/aspect/issues/4308) Convergence problems with GMG and spherical shells and large viscosity contrasts (opened)  
[#4302](https://github.com/geodynamics/aspect/issues/4302) Negative temperature in StickAir Layer. (opened)  
[#4273](https://github.com/geodynamics/aspect/issues/4273) drucker-prager documentation warning (closed)  
[#4253](https://github.com/geodynamics/aspect/issues/4253) spherical\_velocity\_components test fails with deal.II9.3.1 ? (closed)  
[#4069](https://github.com/geodynamics/aspect/issues/4069) release 2.3.0 (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/).