WebGPU FDTD Test Bench

Runs the AntennaSim FDTD Yee-update kernels (the same WGSL and math as the native gpu-spike test) in your browser. Open this page on a machine, and either run the jobs manually or leave it connected — Muse can then start jobs on this page remotely, at any time, and gets the results back automatically.

GPU adapter not checked

Power preference (applies on refresh)

Remote control disconnected

While connected, this page polls the relay for jobs from Muse and runs them automatically — the built-in parity and benchmark jobs, plus custom WGSL kernels Muse pushes. Results stream back without you doing anything. Keep the tab open and the machine awake (the page holds a screen wake lock while connected).

Machine label (shown to Muse)

Session: —

Job 1 — Parity check (correctness)

Runs the kernels on a small grid on the GPU and the identical math on the CPU, then compares all 6 fields. Native reference: max abs diff ≈ 3e-8.

Grid

Steps

Job 2 — Throughput benchmark

Full Yee E/H step loop, timed on the GPU (wall clock around queue completion, warmup excluded — same method as the native spike, which measured 269 Mcell/s on an Intel HD 520).