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### Description TreeEnsemble* kernels fully copies all the parameters from the onnx graph. Even if they are no longer needed or unused (hitrates), they remain in memory. For big models >= 200 trees, max_depth > 10, the model usually weights more than 10 Mb. This change offers a kernel the possibility to remove all unneeded attributes after they were used to create the session. Attributes are deleted after the model was possibly saved, at the of the session creation. The current design is to be debatted: * it stored the list of removable attributes in class `onnxruntime::Node`, * the node is marked as `const` everytime this implementation needs to register the name of a removable attribute or to remove them. The current implementation is just a POC as it needs to cast `onnxruntime::Node*` into `const onnxruntime::Node*`. Should we keep the list of removable attributes in `onnxruntime::Node`? ### Motivation and Context Motivation is mostly to reduce memory consumption. --------- Signed-off-by: xadupre <xadupre@microsoft.com> |
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