FA-99294 / Distributed training aggregation / Member archive
Sparse gradient coordinates are combined by list position · case 04
Sparse gradient coordinates are combined by list position.
Case contract
Rows [worker, [(coordinate,value),...]]; sum values by coordinate and return sorted pairs; empty coordinates omitted.
Why this case matters
A toy distributed-training contract makes replica and shard contribution rules explicit without claiming framework compatibility or performance.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| sparse order differs | [[0, 7], [1, 5]] | [[0, 4], [2, 8]] | 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 ↗