Stochastic Rounding

Why it matters

Stochastic rounding helps very low precision training. Understanding shapes advanced technique.

The architecture

Value 3.7: round to 4 with 0.7 prob; 3 with 0.3 prob.

Expected value preserved.

How it works end to end

Unbiased vs biased rounding (nearest-even).

Enables lower precision without bias.

Hardware support growing.