[Pass] DynamicToStatic uses InferTypeLocal #9869
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AndrewZhaoLuo
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@mbrookhart so using this decreases pass time from 170s--> ~105s on my computer when running on large BERT model. https://zenodo.org/record/3733910/files/model.onnx E.g.: https://github.com/AndrewZhaoLuo/TVM-Sandbox/blob/main/relay/dynamic_to_static_example.py This model doesn't see any change after dynamic 2 static though, so do you have model that does change significantly? Otherwise I think this is ready to review. |
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@AndrewZhaoLuo Models that don't change much through this pass tend to be a lot slower than models that do, this is a nice speedup, thank you!
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DynamicToStatic has the same issue as found in #9735 as it incrementally tries to make dynamic things static throughout the graph, running type inference incrementally along the way. DynamicToStatic is a bit of a slow pass for larger models so this might help.
Unsure if this will speed things up, as I'm unsure how well ConstantFolding works, but first glance it appears to be smart and I think type inference dominates runtime.