@tensorflow/tfjs-backend-wasm
Version:
This package adds a WebAssembly backend to TensorFlow.js. It currently supports the following models from our [models](https://github.com/tensorflow/tfjs-models) repo: - BlazeFace - BodyPix - CocoSSD - Face landmarks detection - HandPose - KNN classifier
64 lines • 10.9 kB
JavaScript
/**
* @license
* Copyright 2023 Google LLC.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* =============================================================================
*/
import { backend_util, Dilation2DBackpropInput } from '@tensorflow/tfjs-core';
import { CppDType } from './types';
let wasmDilation2DBackpropInput;
function setup(backend) {
wasmDilation2DBackpropInput =
backend.wasm.cwrap(Dilation2DBackpropInput, null, [
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number',
'number', // padLeft
]);
}
export function dilation2DBackpropInput(args) {
const { inputs, backend, attrs } = args;
const { x, filter, dy } = inputs;
const { strides, pad, dilations } = attrs;
if (x.dtype !== filter.dtype || x.dtype !== dy.dtype) {
throw new Error(`Dilation2DBackpropInput error: x must have the same dtype as filter and dy. Got ${x.dtype}, ${filter.dtype}, and ${dy.dtype}`);
}
const dilationInfo = backend_util.computeDilation2DInfo(x.shape, filter.shape, strides, pad,
/*dataFormat=*/ 'NHWC', dilations);
const gradients = backend.makeOutput(x.shape, x.dtype);
wasmDilation2DBackpropInput(backend.dataIdMap.get(x.dataId).id, backend.dataIdMap.get(filter.dataId).id, backend.dataIdMap.get(dy.dataId).id, backend.dataIdMap.get(gradients.dataId).id, CppDType[x.dtype], dilationInfo.batchSize,
/*depth=*/ dilationInfo.inChannels, dilationInfo.inHeight, dilationInfo.inWidth, dilationInfo.outHeight, dilationInfo.outWidth, dilationInfo.strideHeight, dilationInfo.strideWidth, dilationInfo.dilationHeight, dilationInfo.dilationWidth, dilationInfo.filterHeight, dilationInfo.filterWidth, dilationInfo.padInfo.top, dilationInfo.padInfo.left);
return gradients;
}
export const dilation2DBackpropInputConfig = {
kernelName: Dilation2DBackpropInput,
backendName: 'wasm',
setupFunc: setup,
kernelFunc: dilation2DBackpropInput
};
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Got ${\n            x.dtype}, ${filter.dtype}, and ${dy.dtype}`);\n  }\n\n  const dilationInfo = backend_util.computeDilation2DInfo(\n      x.shape as [number, number, number, number],\n      filter.shape as [number, number, number], strides, pad,\n      /*dataFormat=*/'NHWC', dilations);\n\n  const gradients = backend.makeOutput(x.shape, x.dtype);\n\n  wasmDilation2DBackpropInput(\n      backend.dataIdMap.get(x.dataId).id,\n      backend.dataIdMap.get(filter.dataId).id,\n      backend.dataIdMap.get(dy.dataId).id,\n      backend.dataIdMap.get(gradients.dataId).id,\n      CppDType[x.dtype],\n      dilationInfo.batchSize,\n      /*depth=*/dilationInfo.inChannels,\n      dilationInfo.inHeight,\n      dilationInfo.inWidth,\n      dilationInfo.outHeight,\n      dilationInfo.outWidth,\n      dilationInfo.strideHeight,\n      dilationInfo.strideWidth,\n      dilationInfo.dilationHeight,\n      dilationInfo.dilationWidth,\n      dilationInfo.filterHeight,\n      dilationInfo.filterWidth,\n      dilationInfo.padInfo.top,\n      dilationInfo.padInfo.left,\n  );\n  return gradients;\n}\n\nexport const dilation2DBackpropInputConfig: KernelConfig = {\n  kernelName: Dilation2DBackpropInput,\n  backendName: 'wasm',\n  setupFunc: setup,\n  kernelFunc: dilation2DBackpropInput as unknown as KernelFunc\n};\n"]}