> The C version was ported to be the Rust one, it seems, and uses those intrinsics too. No. Although the Rust program was initially presented to me as a "port

> The C version was ported to be the Rust one, it seems, and uses those intrinsics too. No. Although the Rust program was initially presented to me as a "port of fastest C SIMD variant" the programmer made additional optimizations not found in the C program: - Moving the loop from outside into "bodies_advance(..)" (SSE pipelining(?)) - Bundle intermediate variables/arrays as struct NBodySim (caching) - Fit array-sizes within struct NBodySim to the number of bodies (caching) ---- https://www.reddit.com/r/rust/comments/akgmef/rust_nbody_benchmark_ranks_1/ef5oy67/ https://www.reddit.com/r/rust/comments/akgmef/rust_nbody_ben...