"use strict";
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/**
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* @license
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* Copyright 2019 Google LLC. All Rights Reserved.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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* =============================================================================
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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var kernelRegistry = new Map();
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var gradRegistry = new Map();
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/**
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* Returns the kernel function (code) associated with the provided names.
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*
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* @param kernelName The official name of the kernel.
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* @param backendName The official name of the backend.
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*/
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function getKernel(kernelName, backendName) {
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var key = makeKey(kernelName, backendName);
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return kernelRegistry.get(key);
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}
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exports.getKernel = getKernel;
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/**
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* Returns the registered gradient info associated with the provided kernel.
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* @param kernelName The official TF kernel name.
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*/
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function getGradient(kernelName) {
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return gradRegistry.get(kernelName);
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}
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exports.getGradient = getGradient;
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function getKernelsForBackend(backendName) {
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var it = kernelRegistry.entries();
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var result = [];
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while (true) {
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var _a = it.next(), done = _a.done, value = _a.value;
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if (done) {
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break;
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}
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var key = value[0], config = value[1];
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var backend = key.split('_')[0];
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if (backend === backendName) {
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result.push(config);
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}
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}
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return result;
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}
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exports.getKernelsForBackend = getKernelsForBackend;
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/**
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* Registers the function (forward pass) for the kernel in a global registry.
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*
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* @param config A config object with the following properties:
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* - `kernelName` The official name of the kernel.
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* - `backendName` The official name of the backend.
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* - `kernelFunc` The function to run during the forward pass of the kernel.
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* - `setupFunc` Optional. Gets called once, after the backend initializes.
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* - `disposeFunc` Optional. Gets called once, right before the backend is
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* disposed.
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*/
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function registerKernel(config) {
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var kernelName = config.kernelName, backendName = config.backendName;
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var key = makeKey(kernelName, backendName);
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if (kernelRegistry.has(key)) {
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throw new Error("The kernel '" + kernelName + "' for backend " +
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("'" + backendName + "' is already registered"));
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}
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kernelRegistry.set(key, config);
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}
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exports.registerKernel = registerKernel;
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/**
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* Registers a gradient function for a given kernel in the global registry,
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* to be used during the back-propagation of that kernel.
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*
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* @param config An object with the following properties:
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* - `kernelName` The name of the kernel that the gradient function is for.
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* - `gradFunc` The function to run during back-propagation.
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*/
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function registerGradient(config) {
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var kernelName = config.kernelName;
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if (gradRegistry.has(kernelName)) {
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console.warn("Overriding the gradient for '" + kernelName + "'");
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}
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gradRegistry.set(kernelName, config);
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}
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exports.registerGradient = registerGradient;
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/**
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* Removes the kernel function from the registry.
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*
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* @param kernelName The official name of the kernel.
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* @param backendName The official name of the backend.
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*
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*/
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function unregisterKernel(kernelName, backendName) {
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var key = makeKey(kernelName, backendName);
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if (!kernelRegistry.has(key)) {
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throw new Error("The kernel '" + kernelName + "' for backend " +
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("'" + backendName + "' is not registered"));
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}
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kernelRegistry.delete(key);
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}
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exports.unregisterKernel = unregisterKernel;
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/** Removes the registered gradient from the global registry. */
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function unregisterGradient(kernelName) {
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if (!gradRegistry.has(kernelName)) {
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throw new Error("The gradient '" + kernelName + "' for backend is not registered");
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}
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gradRegistry.delete(kernelName);
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}
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exports.unregisterGradient = unregisterGradient;
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function makeKey(kernelName, backendName) {
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return backendName + "_" + kernelName;
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}
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//# sourceMappingURL=kernel_registry.js.map
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