/**
* @file webgpu-wrapper.ts
* @description WebGPU acceleration layer stub (NOT IMPLEMENTED)
*
* ⚠️ WARNING: WebGPU acceleration is NOT currently implemented.
* This module exists as a placeholder for future browser/Deno support.
* All GPU functions will throw errors if called.
*
* WebGPU is not available in Node.js and requires browser environment.
* Estimated implementation: Future version (4.0+)
*
* @module gpu/webgpu-wrapper
* @since 3.0.0
*/
import { logger } from '../utils.js';
import { WasmError } from '../errors.js';
/**
* Performance thresholds for WebGPU usage.
* These are placeholder values for future implementation.
*
* @constant
*/
export const GPU_THRESHOLDS = {
/** Use GPU for matrix multiply when matrices are >= 500×500 */
matrix_multiply: 500,
/** Use GPU for matrix transpose when matrices are >= 1000×1000 */
matrix_transpose: 1000,
/** Use GPU for matrix add/subtract when matrices are >= 1000×1000 */
matrix_add_sub: 1000,
/** Use GPU for statistics when arrays have >= 1,000,000 elements */
statistics: 1000000,
} as const;
/**
* WebGPU initialization status.
* Always false in Node.js environment.
*/
export const gpuInitialized = false;
/**
* Initializes WebGPU (NOT IMPLEMENTED).
*
* @returns {Promise<void>}
*/
export async function initWebGPU(): Promise<void> {
logger.debug('WebGPU not available in Node.js environment - skipping initialization');
}
/**
* Matrix multiplication using WebGPU (NOT IMPLEMENTED).
*
* @param {number[][]} _a - First matrix (unused)
* @param {number[][]} _b - Second matrix (unused)
* @returns {Promise<number[][]>} Never resolves
* @throws {WasmError} Always throws - WebGPU not implemented
*/
export async function gpuMatrixMultiply(_a: number[][], _b: number[][]): Promise<number[][]> {
throw new WasmError('WebGPU not implemented in Node.js environment');
}
/**
* Statistical mean using WebGPU (NOT IMPLEMENTED).
*
* @param {number[]} _data - Input array (unused)
* @returns {Promise<number>} Never resolves
* @throws {WasmError} Always throws - WebGPU not implemented
*/
export async function gpuStatsMean(_data: number[]): Promise<number> {
throw new WasmError('WebGPU not implemented in Node.js environment');
}
/**
* Gets GPU performance statistics (stub).
*
* @returns {Object} Empty statistics
*/
export function getGPUPerfStats(): {
gpuCalls: number;
avgGpuTime: string;
gpuInitialized: boolean;
} {
return {
gpuCalls: 0,
avgGpuTime: '0.000ms',
gpuInitialized: false,
};
}
/**
* Resets GPU performance counters (no-op).
*/
export function resetGPUPerfCounters(): void {
// No-op
}
/**
* Checks if GPU operation should be used (always false).
*
* @param {number} _size - Data size (unused)
* @param {keyof typeof GPU_THRESHOLDS} _operation - Operation type (unused)
* @returns {boolean} Always false
*/
export function shouldUseGPU(_size: number, _operation: keyof typeof GPU_THRESHOLDS): boolean {
return false;
}
