FA-99317 / Distributed training aggregation / Member archive
Collective slot IDs are replaced by row positions · case 02
Collective slot IDs are replaced by row positions.
Case contract
Rows [slot,worker,value]; return sorted [slot,sum] pairs.
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 |
|---|---|---|---|
| shuffled slot ids | [[0, 4], [1, 0], [2, 8]] | [[0, 4], [2, 8]] | Failed |
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