# ASPECT Newsletter #71

**URL:** https://community.geodynamics.org/t/aspect-newsletter-71/367
**Category:** ASPECT
**Created:** [January 17, 2019, 6:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-71/367 "2019-01-17T18:00:22Z")
**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: [January 17, 2019, 6:00pm UTC](https://community.geodynamics.org/t/aspect-newsletter-71/367/1 "2019-01-17T18:00:22Z")

</div>

Hello everyone!

```
       This is ASPECT newsletter #71.

```

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:

[#2771](https://github.com/geodynamics/aspect/pull/2771): fix inclusion benchmark with averaging (proposed by [tjhei](https://github.com/tjhei); merged)

[#2770](https://github.com/geodynamics/aspect/pull/2770): udpate world builder to version 0.2.0-pre. (proposed by [MFraters](https://github.com/MFraters))

[#2769](https://github.com/geodynamics/aspect/pull/2769): macro names without double underscore (proposed by [tjhei](https://github.com/tjhei); merged)

[#2768](https://github.com/geodynamics/aspect/pull/2768): Extract velocity bdry constraints (proposed by [tjhei](https://github.com/tjhei); merged)

[#2766](https://github.com/geodynamics/aspect/pull/2766): remove warning in benchmarks/inclusion (proposed by [tjhei](https://github.com/tjhei); merged)

[#2765](https://github.com/geodynamics/aspect/pull/2765): use unique\_ptr for FreeSurfaceHandler (proposed by [tjhei](https://github.com/tjhei); merged)

[#2764](https://github.com/geodynamics/aspect/pull/2764): reorder solver parameters by subsection (proposed by [tjhei](https://github.com/tjhei); merged)

[#2763](https://github.com/geodynamics/aspect/pull/2763): update publications (proposed by [tjhei](https://github.com/tjhei))

[#2761](https://github.com/geodynamics/aspect/pull/2761): add assert and notes about inhomogeneous constraints (proposed by [tjhei](https://github.com/tjhei))

[#2760](https://github.com/geodynamics/aspect/pull/2760): Link to the 2019 hackathon. (proposed by [bangerth](https://github.com/bangerth); merged)

[#2759](https://github.com/geodynamics/aspect/pull/2759): Make spelling conform to common styles. (proposed by [bangerth](https://github.com/bangerth); merged)

[#2756](https://github.com/geodynamics/aspect/pull/2756): Add a termination criteria for steady state temperature (proposed by [gassmoeller](https://github.com/gassmoeller))

[#2755](https://github.com/geodynamics/aspect/pull/2755): Improve error message of ascii data plugin while loading file (proposed by [gassmoeller](https://github.com/gassmoeller); merged)

[#2754](https://github.com/geodynamics/aspect/pull/2754): Support sphere geometry in ascii data plugin (proposed by [gassmoeller](https://github.com/gassmoeller); merged)

[#2752](https://github.com/geodynamics/aspect/pull/2752): Fix initial topography for moved box origin (proposed by [gassmoeller](https://github.com/gassmoeller); merged)

[#2751](https://github.com/geodynamics/aspect/pull/2751): Extend parameter view (proposed by [gassmoeller](https://github.com/gassmoeller); merged)

[#2750](https://github.com/geodynamics/aspect/pull/2750): update parameters (proposed by [tjhei](https://github.com/tjhei); merged)

[#2749](https://github.com/geodynamics/aspect/pull/2749): Extend parameter view (proposed by [gassmoeller](https://github.com/gassmoeller))

[#2748](https://github.com/geodynamics/aspect/pull/2748): Link to parameter view (proposed by [gassmoeller](https://github.com/gassmoeller); merged)

[#2747](https://github.com/geodynamics/aspect/pull/2747): Introduce parameters.xml (proposed by [gassmoeller](https://github.com/gassmoeller); merged)

[#2703](https://github.com/geodynamics/aspect/pull/2703): Add newton paper benchmarks (proposed by [MFraters](https://github.com/MFraters); merged)

[#2675](https://github.com/geodynamics/aspect/pull/2675): Implement consistent boundary heat flux computation (proposed by [gassmoeller](https://github.com/gassmoeller); merged)

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

[#2767](https://github.com/geodynamics/aspect/issues/2767) Geometric Multigrid for faster linear solvers (opened)

[#2762](https://github.com/geodynamics/aspect/issues/2762) Better document how to add publications using ASPECT to the list on our website (opened)

[#2758](https://github.com/geodynamics/aspect/issues/2758) Termination criteria do not save state during checkpoint (opened)

[#2757](https://github.com/geodynamics/aspect/issues/2757) Spherical shell and chunk support for initial topography (opened)

[#2753](https://github.com/geodynamics/aspect/issues/2753) misleading error message in ascii data plugin (opened and 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!

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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/).
```