[Web] WebGPU Device Promise not defined

[rgerd]

Describe the issue

#23026 changes the API to define device as a Promise that, when awaited, returns the GPUDevice for the backend. However, that promise is never set (if you try to access device before initializing an inference session, it's just undefined). Similarly, if you set the device, it just gets overwritten. #21553 added code to implement this but it didn't end up getting merged...

Has anyone been looking into implementing the behavior described by the API?
@fs-eire

To reproduce

await ort.env.webgpu.device at the beginning of your web app's execution.

Urgency

No response

ONNX Runtime Installation

Released Package

ONNX Runtime Version or Commit ID

1.22.0

Execution Provider

'webgpu' (WebGPU)

[fs-eire]

Thank you for the bug report. Currently a migration for WebGPU is ongoing (using WebGPU EP to replace JS EP). Once it's done, I will work on fixing the device property.