testing

FpSan (Floating-Point Sanitizer) Tool

Open-source correctness checker for Triton GPU kernels, and the tool OpenAI says it used to validate the production kernels GPT-5.6 Sol rewrote. It compares symbolic computation under its own payload algebra rather than simulating IEEE floating point, so results should be compared only against other FpSan runs. Useful for anyone writing or generating custom kernels who needs to catch numerical breakage before it reaches production.