Add merge_ids_op #11342
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Add merge_ids_op #11342
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13 tasks
… add-merge-splited-ids
… add-merge-splited-ids
Yancey1989
reviewed
Jun 13, 2018
| @@ -330,8 +330,12 @@ void Executor::RunPreparedContext(ExecutorPrepareContext* ctx, Scope* scope, | |||
| } | |||
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| for (auto& op : ctx->ops_) { | |||
| VLOG(3) << place_ << " " << op->DebugStringEx(local_scope); | |||
| VLOG(4) << place_ << " " << op->DebugStringEx(local_scope); | |||
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Can we keep the log level before op run and after?
| AddComment(R"DOC( | ||
| Merge multi LoDTensor's into one according to Ids's shard num. | ||
| The values in the input LoDTensor are lookuped from the output of split_ids_op | ||
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How about adding some comments to explain why X0 is mapped to index 3 and 6.
typhoonzero
reviewed
Jun 13, 2018
| // copy data from ins[shard_num] to out. | ||
| for (int i = 0; i < ids_dims[0]; ++i) { | ||
| int64_t id = ids[i]; | ||
| size_t shard_id = static_cast<size_t>(id) % shard_num; |
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Hash method is currently hardcoded, just a message for notice.
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yes, will be an independent module in the future.
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project: #10868
dist lookup table返回的结果需要merge在一起，之前用的concat是不对的，会打乱结果的顺序，merge_ids参考原始Id的顺序才能把结果正确的merge在一起，同时也把lod信息拷贝给merge的结果。