Same Model Hash Code Issue from different models

[geekadalovelace]

Describe the issue

If given models have the same architecture and identical input/output tensor names for each node, they will generate the same model hash code. Even if the model structure is the same, different weights and shapes should result in different models and thus develop different hash codes.

The hash code is only dependent on the names. https://github.com/microsoft/onnxruntime/blob/d616025884da05368c38270338b1ab3698e0ecb6/onnxruntime/core/framework/model_metadef_id_generator.cc#L52

To reproduce

Two models with the same architecture but different weights generate the same model hash code.

Urgency

No response

Platform

Linux

OS Version

Ubuntu 22.04

ONNX Runtime Installation

Built from Source

ONNX Runtime Version or Commit ID

v1.10

ONNX Runtime API

C++

Architecture

X64

Execution Provider

Default CPU

Execution Provider Library Version

No response