The Rust community is actively hurt by people doing things like this, no-one takes this type of work seriously.
Edit: please come back when you've replicated and validated at least something like a basic, well-understood finite difference solver of single-phase incompressible Navier-Stokes, and shown that it's either equivalently fast and much easier code, or significantly faster (very unlikely). Do note that a readable Fortran version is going to be ~400 lines, so there's not a terribly large room for improvement. Also, we already have a good language that gives us slower and much easier code, namely Python.
Not sure about language it self, my knowledge about Rust is limited. But st is at least harder because we already have optimized libraries that can do this in C++.
Do some one know such library for Rust ? It would be great too look at it.
(Protip: don't use if's inside tight loops. Just don't.)
This are not valid benchmarks at all. What is the point to run N-Body sim with all particles set to 0.0 ?
Where is the result of the sim ?
Why it will be not validated at all ?
To make this look like real benchmark one will need to use the same start condition and then validate that result for all languages is the same.
It would be great to have C++ code using Eigen library for example ? To show the difference .
Also this is naive O(N^2) sim that could be speed up using Fast multipole method (FMM), but of course this would be much more complicated to do this in Rust or Go as in C++.