alt.hn

7/30/2026 at 6:56:00 PM

Characterizing Warp Divergence from Pascal to Blackwell

https://arxiv.org/abs/2607.23402

by matt_d

8/3/2026 at 2:15:09 PM

> Across all tested generations, divergent paths serialize linearly with the number of paths k, following T(k)≈sk with no super-linear reconvergence penalty. Warp execution efficiency falls as 32/k, the penalty is independent of occupancy, and predication removes the serialization cost

So... Nvidia did a good job?

by majke