FA-98939 / Gradient accumulation weighting / Member archive
Microbatch gradients are summed when the objective expects their mean · case 04
Microbatch gradients are summed when the objective expects their mean.
Case contract
Each input is one already-normalized microbatch gradient. Return the arithmetic mean over updates; no updates yields 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 |
|---|---|---|---|
| two sums | 24 | 12 | Failed |
MEMBER ARCHIVE
The complete case is available to members.
This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
Member access is invitation-based. Sign in with your invited account to inspect the sources.
Sign in to the archive ↗