[WebGPU] Handle device OOM in createBuffer #17005
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tqchen
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CharlieFRuan
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Prior to this PR, when users `createEngine()` or call `reload()` with a model that is too large for the device, likely the device would keep generating, ignoring OOM issue and correctness. See #356 and #209. This PR catches such error with `device.lost.then()`, depending on tvmjs to call `device.destroy()` upon detecting error in `createBuffer()` via apache/tvm#17005. We have only observed `createBuffer()` errors and hence will only process such kind of errors for now. Besides, since most OOM errors occur in `reload()`, we make the error handling synchronous despite using `.then()` by throwing the error at the end of `reload()` if there is one.
CharlieFRuan
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### Changes Main changes include: - New model `Hermes-2-Pro-Mistral-7B` in `prebuiltAppConfig` via: - #390 - Various `index.js` and `index.js.map` post-processings to resolve frontend compatibility issues with `require()` and `perf_hoooks` - #397 - #406 - Catch WebGPU OOM error upon `reload()` and `CreateEngine()`: - #402 - Service Worker support (in addition to Extension Service Worker): - #395 - #400 - #401 ### WASM Version v0_2_34 as no change is required. ### TVMjs TVMjs compiled at apache/tvm@a5862a5, with only one change in `tvm/web`: apache/tvm#17005
atebites-hub
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Prior to this PR, when users `createEngine()` or call `reload()` with a model that is too large for the device, likely the device would keep generating, ignoring OOM issue and correctness. See mlc-ai#356 and mlc-ai#209. This PR catches such error with `device.lost.then()`, depending on tvmjs to call `device.destroy()` upon detecting error in `createBuffer()` via apache/tvm#17005. We have only observed `createBuffer()` errors and hence will only process such kind of errors for now. Besides, since most OOM errors occur in `reload()`, we make the error handling synchronous despite using `.then()` by throwing the error at the end of `reload()` if there is one.
atebites-hub
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Oct 4, 2025
### Changes Main changes include: - New model `Hermes-2-Pro-Mistral-7B` in `prebuiltAppConfig` via: - mlc-ai#390 - Various `index.js` and `index.js.map` post-processings to resolve frontend compatibility issues with `require()` and `perf_hoooks` - mlc-ai#397 - mlc-ai#406 - Catch WebGPU OOM error upon `reload()` and `CreateEngine()`: - mlc-ai#402 - Service Worker support (in addition to Extension Service Worker): - mlc-ai#395 - mlc-ai#400 - mlc-ai#401 ### WASM Version v0_2_34 as no change is required. ### TVMjs TVMjs compiled at apache/tvm@a5862a5, with only one change in `tvm/web`: apache/tvm#17005
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Prior to this PR, WebGPU errors such as OOM are only logged as a warning without affecting the program. This PR handles WebGPU error using
pushErrorScope()andpopErrorScope()following https://github.com/gpuweb/gpuweb/blob/main/design/ErrorHandling.md.We replace
createBuffer()withtryCreateBuffer(), in which we catch all three types of errors. For now, we treat any error occurred increateBuffer()fatal and hence dodevice.destroy(). When a device is initiated, we usedevice.lost.then()to listen to the event ofdevice.destroy(), upon which we log the error and callInstance.dispose(), prompting the user to re-initialize.See mlc-ai/web-llm#356 for motivation.
Tested end-to-end with WebLLM.