/// <amd-module name="@tensorflow/tfjs-core/dist/kernel_registry" />
|
import { NamedGradientMap } from './tape';
|
import { Tensor } from './tensor';
|
import { TensorInfo } from './tensor_info';
|
import { RecursiveArray } from './types';
|
type AttributeValue = number | number[] | boolean | boolean[] | string | string[] | NamedAttrMap;
|
/** These are extra non-tensor/primitive params passed to kernel functions. */
|
export type Attribute = AttributeValue | RecursiveArray<AttributeValue>;
|
/** Specifies the code to run when executing a kernel. */
|
export type KernelFunc = (params: {
|
inputs: NamedTensorInfoMap;
|
backend: {};
|
attrs?: NamedAttrMap;
|
}) => TensorInfo | TensorInfo[];
|
/** The function to run when computing a gradient during backprop. */
|
export type GradFunc = (dy: Tensor | Tensor[], saved: Tensor[], attrs: NamedAttrMap) => NamedGradientMap;
|
/** Function that gets called after the backend initializes. */
|
export type KernelSetupFunc = (backend: {}) => void;
|
/** Function that gets called right before the backend is disposed. */
|
export type KernelDisposeFunc = KernelSetupFunc;
|
/** Config object for registering a kernel in the global registry. */
|
export interface KernelConfig {
|
kernelName: string;
|
backendName: string;
|
kernelFunc: KernelFunc;
|
setupFunc?: KernelSetupFunc;
|
disposeFunc?: KernelDisposeFunc;
|
}
|
/** Config object for registering a gradient in the global registry. */
|
export interface GradConfig {
|
kernelName: string;
|
inputsToSave?: string[];
|
saveAllInputs?: boolean;
|
outputsToSave?: boolean[];
|
gradFunc: GradFunc;
|
}
|
export interface NamedTensorInfoMap {
|
[name: string]: TensorInfo | undefined;
|
}
|
export interface NamedAttrMap {
|
[name: string]: Attribute;
|
}
|
/**
|
* Returns the kernel function (code) associated with the provided names.
|
*
|
* @param kernelName The official name of the kernel.
|
* @param backendName The official name of the backend.
|
*/
|
export declare function getKernel(kernelName: string, backendName: string): KernelConfig;
|
/**
|
* Returns the registered gradient info associated with the provided kernel.
|
* @param kernelName The official TF kernel name.
|
*/
|
export declare function getGradient(kernelName: string): GradConfig;
|
export declare function getKernelsForBackend(backendName: string): KernelConfig[];
|
/**
|
* Registers the function (forward pass) for the kernel in a global registry.
|
*
|
* @param config A config object with the following properties:
|
* - `kernelName` The official name of the kernel.
|
* - `backendName` The official name of the backend.
|
* - `kernelFunc` The function to run during the forward pass of the kernel.
|
* - `setupFunc` Optional. Gets called once, after the backend initializes.
|
* - `disposeFunc` Optional. Gets called once, right before the backend is
|
* disposed.
|
*/
|
export declare function registerKernel(config: KernelConfig): void;
|
/**
|
* Registers a gradient function for a given kernel in the global registry,
|
* to be used during the back-propagation of that kernel.
|
*
|
* @param config An object with the following properties:
|
* - `kernelName` The name of the kernel that the gradient function is for.
|
* - `gradFunc` The function to run during back-propagation.
|
*/
|
export declare function registerGradient(config: GradConfig): void;
|
/**
|
* Removes the kernel function from the registry.
|
*
|
* @param kernelName The official name of the kernel.
|
* @param backendName The official name of the backend.
|
*
|
*/
|
export declare function unregisterKernel(kernelName: string, backendName: string): void;
|
/** Removes the registered gradient from the global registry. */
|
export declare function unregisterGradient(kernelName: string): void;
|
/**
|
* Finds kernels that have already been registered to a backend and re-registers
|
* them for a new backend. Useful for registering custom backends.
|
* @param registeredBackendName Already registered backend.
|
* @param newBackendName New backend.
|
*/
|
export declare function copyRegisteredKernels(registeredBackendName: string, newBackendName: string): void;
|
export {};
|