FA-98845 / Gradient accumulation weighting / Member archive
Unequal example batches receive equal mean-gradient weight · case 05
Unequal example batches receive equal mean-gradient weight.
Case contract
Gradient sums and example counts describe microbatches. Return their global example-weighted mean; zero total examples returns zero.
Why this case matters
A deterministic toy model isolates one local accumulation contract.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| unequal batches | 6.0 | 3.5 | Failed |
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