mirror of
https://github.com/saymrwulf/onnxruntime.git
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c373a808a2
### Description
* follows the packaging approach according to the design document
* adds `ENABLE_TRAINING` boolean flag to `BUILD_DEFS`
* modifies `package.json` to include training submodule
* modifies build script to handle, validate, and minimize training WASM
artifacts
* adds the binding for the new backend with training enabled & the new
training artifacts
* adds training backend
* edits `index.ts` to use training backend depending on `BUILD_DEFS`
* edits `wasm-factory.ts` to use the training artifacts if necessary
### Motivation and Context
* we are in the process of adding web bindings to enable training.
* Adding the "glue" to allow onnxruntime-web to use the training WASM
artifacts is required for this work.
* Since BUILD_DEFS is defined and used at build time, I thought that it
made sense to bundle the changes to building in the same PR.
#### Related work
* #16521 allowed for training artifacts to be built
* #17333 must be merged in before this one
---------
Co-authored-by: Yulong Wang <7679871+fs-eire@users.noreply.github.com>
53 lines
2 KiB
TypeScript
53 lines
2 KiB
TypeScript
// Copyright (c) Microsoft Corporation. All rights reserved.
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// Licensed under the MIT License.
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import {cpus} from 'node:os';
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import {Backend, env, InferenceSession, InferenceSessionHandler} from 'onnxruntime-common';
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import {initializeWebAssemblyInstance} from './wasm/proxy-wrapper';
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import {OnnxruntimeWebAssemblySessionHandler} from './wasm/session-handler';
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/**
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* This function initializes all flags for WebAssembly.
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*
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* Those flags are accessible from `ort.env.wasm`. Users are allow to set those flags before the first inference session
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* being created, to override default value.
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*/
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export const initializeFlags = (): void => {
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if (typeof env.wasm.initTimeout !== 'number' || env.wasm.initTimeout < 0) {
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env.wasm.initTimeout = 0;
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}
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if (typeof env.wasm.simd !== 'boolean') {
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env.wasm.simd = true;
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}
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if (typeof env.wasm.proxy !== 'boolean') {
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env.wasm.proxy = false;
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}
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if (typeof env.wasm.numThreads !== 'number' || !Number.isInteger(env.wasm.numThreads) || env.wasm.numThreads <= 0) {
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const numCpuLogicalCores = typeof navigator === 'undefined' ? cpus().length : navigator.hardwareConcurrency;
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env.wasm.numThreads = Math.min(4, Math.ceil((numCpuLogicalCores || 1) / 2));
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}
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};
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export class OnnxruntimeWebAssemblyBackend implements Backend {
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async init(): Promise<void> {
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// populate wasm flags
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initializeFlags();
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// init wasm
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await initializeWebAssemblyInstance();
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}
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createInferenceSessionHandler(path: string, options?: InferenceSession.SessionOptions):
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Promise<InferenceSessionHandler>;
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createInferenceSessionHandler(buffer: Uint8Array, options?: InferenceSession.SessionOptions):
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Promise<InferenceSessionHandler>;
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async createInferenceSessionHandler(pathOrBuffer: string|Uint8Array, options?: InferenceSession.SessionOptions):
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Promise<InferenceSessionHandler> {
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const handler = new OnnxruntimeWebAssemblySessionHandler();
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await handler.loadModel(pathOrBuffer, options);
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return Promise.resolve(handler);
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}
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}
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