[Disco] Add loader for presharded params.#15676
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csullivan wants to merge 2 commits intoapache:unityfrom
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[Disco] Add loader for presharded params.#15676csullivan wants to merge 2 commits intoapache:unityfrom
csullivan wants to merge 2 commits intoapache:unityfrom
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Lunderberg
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Sep 21, 2023
| int worker_id = worker->worker_id; | ||
| int num_shards = worker->num_workers; | ||
| Device device = worker->default_device; | ||
| size_t index = weight_index * num_shards + worker_id; |
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Does this line line imply that a sharded parameter set contains only sharded parameters? I don't think that assumption is true for our use case. (e.g. Sharded weights/bias for matmul, but unsharded vocab embedding)
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In discussion with @csullivan , this PR is superseded by #15957. |
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Support loading params that are already sharded via a rewrite transform and the use of LiftTransformParams.