google/jax

Composable transformations of Python+NumPy programs: differentiate, vectorize, JIT to GPU/TPU, and more

[Mosaic GPU] Guard `bf16` <-> `f8e4m3fn`/`f8e5m2` conversions on Blackwell+ (`sm_100`+). #41863

Merged

copybara-service[bot] opened 2:52pm on October 21, 2026 wanted to merge 1 commit into google/jax main from

test_1003994976

Reviewing

(35% less) vs GitHub

This saves about 61.2 hours per year vs conventional diff tools

copybara-service[bot] authored

of work during October 21

Diff Delta:

About 0 Diff Delta/hour

Classified as: General

[Mosaic GPU] Guard bf16 <-> f8e4m3fn/f8e5m2 conversions on Blackwell+ (sm_100+).

cvt.{e4m3x2,e5m2x2}.bf16x2 and cvt.bf16x2.{e4m3x2,e5m2x2} are not supported pre-Blackwell (arch.major < 10).

2 total changed files

Loading changes...

You've made it to the end of the scroll.

All files reviewed — nice work, champ! 💪

GitClear uses cookies to ensure you get the best experience on our website. Learn more about our cookie policy