Reduce Gather op when ONNX-exported #20
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takagi
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takagi
changed the title
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The current
_getc6_implimplementation gives some Gather ops when exported as ONNX, which has memory copy and causes performance inefficiency. This PR changes the implementation to make it export an ONNX graph with fewer Gather ops.This change brings ~20% performance gain on my ONNX inference measurement. As a side effect, it also has ~10% performance gain on out-of-the-box PyTorch execution.
Thanks @asi1024!