Use DYNAMIC on batch size #213
Merged
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With the current regression on 20-ish LLMs, it's found that torch.export.Dim("batch", min=1, max=1024) sets a constraints to the graph when the tracing inputs have at least 2 on batch size. While with torch.export.Dim.DYNAMIC, such constraints are not set. From ONNX perspective, we don't have constraint range, so I think it makes sense that we only use DYNAMIC in such cases.