Thermite Rust SIMD Library: Write Once, Run Optimally Everywhere

blaizedsouza · x · 2026-08-15

Thermite is a portable SIMD library for Rust that allows writing a numeric kernel once, compiling to optimized code for SSE2, SSE4.2, AVX2, NEON, or WASM SIMD128 automatically. It features runtime instruction set selection, forward-mode autodiff for derivatives, and double-double precision (106 bits) via compensated arithmetic.

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