BOUT-dev VS RustBCA

BOUT++: a framework for writing fluid and plasma simulations in curvilinear geometry

At least in my field (computational plasma physics), the majority of software is (in descending order) Fortran (e.g., SOLPS-ITER), Python (e.g., IPS; OMFIT; UEDGE), and C/C++ (e.g., BOUT++; Exascale Computing Project tools).

I don't want to paint too bleak a picture of my field - there are definitely big, well-supported projects that invest in code quality! For example, Bout++ is a fluid solver whose devs care a lot about best practices, and the folks at the Exascale Computing Project are doing great work with tools like Kokkos (GPU acceleration of HPCcodes), ADIOS (I/O for HPC), AMREX (meshes for HPC), etc.

RustBCA: An open-source Binary Collision Approximation (BCA) code for ion-material interactions including sputtering, implantation, and reflection, written in Rust

RustBCA- An ion modeling library for plasma physics

Just submitted a manuscript to the Journal of Open Source Software on RustBCA, a Monte Carlo ion-material interactions code for simulating the plasma-material interface including implantation, reflection, and sputtering! I'm still more physicist than software engineer, but I'm pretty happy with its current state, especially compared to other research software in my field.

Unfortunately I don't have a minimal example on hand. The code is open-source though, and the lines in question (where I'm using the placeholder of conditional compilation to handle different geometries) start here on the geometry_rewrite branch.