v0.17.21

Trixi v0.17.21

Diff since v0.17.20

Merged pull requests:

• Add auxiliary variables for 3D P4estMeshes (#3239) (@MarcoArtiano)
• Multi-GPU support: P4estMesh3D (#3364) (@benegee)
• fix 1D and 2D plots of higher-dimensional results (#3405) (@ranocha)
• fix flux_godunov for 2D hyp. diffusion on curved meshes (#3406) (@ranocha)
• Add corner and edge connectivity to structured P4estMesh (#3427) (@JoshuaLampert)
• at-inbounds for shock capturing DGSEM (#3428) (@ranocha)
• Build connectivity of P4estMeshCubedSphere with p8est_connectivity_complete (#3429) (@JoshuaLampert)

Closed issues:

• Remove redundant rebalancing of P4estMesh (#622)
• Problem with local installation of p4est (#1358)
• Add moist Euler equations with test case (#1778)