Tag
3 posts
gpu
8 min read
Ticking 'include stress battery' on a conformance page froze an RTX 2080 desktop so hard the window's own close button stopped responding. The df64 stress shaders over-ran the 2 s Windows TDR, and a 4 s JS compile timeout couldn't help — you can't cancel a GPU op you already submitted.
refactoring
8 min read
Routing Earth constants out of GPU shader source through one planetary Body authority, under a hard bar: emitted bytes must not change. Goldens captured from pre-change code, a literal ratchet, a 211-hit census — and a "wrong" eccentricity kept on purpose.
floating-point
7 min read
GPU double-single splits floats with 8193; the textbook says 4097. I was sure 8193 was cargo-culted from a wider type — until two million float32 products came back error-free for both. The split constant that breaks is one too small; the real bug was never the split.
