Is it possible to set disabled_optimizers with C# API?

[asvyazin]

Python API has keyword disabled_optimizers in InferenceSession constructor but I don't see anything similar in C# API. Is there some way to explicitly disable some optimizers in C#?

[claeyzre]

You can pass SessionOptions in the InferenceSession constructor
And you can change the parameters of this session options, one of them is the GraphOptimizationLevel, so you can set it to one of these

    {
        ORT_DISABLE_ALL = 0,
        ORT_ENABLE_BASIC = 1,
        ORT_ENABLE_EXTENDED = 2,
        ORT_ENABLE_ALL = 99
    }

and then pass the session options to the inference session and you're good

[asvyazin]

It's not the same. With disabled_optimizers you can explicitly disable one or more optimizers by name. With GraphOptimizationLevel it's unclear which optimizers exactly will be disabled