Codex
59 lines
2.0 KiB
JavaScript
59 lines
2.0 KiB
JavaScript
import { computeDasMap } from "../acoustics-core/das.js";
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import { computeDasWebGpu } from "./das.js";
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import { isRecoverableWebGpuError } from "./device.js";
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function createAbortError(signal) {
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if (signal?.reason instanceof Error && signal.reason.name === "AbortError") return signal.reason;
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const error = new Error("DAS 계산이 취소되었습니다.");
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error.name = "AbortError";
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return error;
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}
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function throwIfAborted(signal) {
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if (signal?.aborted) throw createAbortError(signal);
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}
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/**
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* Execute the requested DAS backend. `auto` falls back only for typed WebGPU
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* operational errors; invalid inputs and AbortError remain visible to callers.
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*/
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export async function computeDasWithBackend(options, dependencies = {}) {
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const computeGpu = dependencies.computeGpu ?? computeDasWebGpu;
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const computeCpu = dependencies.computeCpu ?? computeDasMap;
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const requestedBackend = options?.experiment?.beamforming?.backend ?? "auto";
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if (requestedBackend === "cpu") return computeCpu(options);
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if (requestedBackend === "webgpu") return computeGpu(options);
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if (requestedBackend !== "auto") {
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throw new TypeError(`지원하지 않는 DAS backend입니다: ${requestedBackend}`);
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}
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try {
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return await computeGpu(options);
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} catch (gpuError) {
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if (!isRecoverableWebGpuError(gpuError)) throw gpuError;
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throwIfAborted(options.signal);
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options.onFallback?.({ from: "webgpu", to: "cpu", error: gpuError });
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throwIfAborted(options.signal);
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try {
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const cpuResult = await computeCpu(options);
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return {
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...cpuResult,
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requestedBackend: "auto",
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fallback: {
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from: "webgpu",
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code: gpuError.code,
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message: gpuError.message,
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},
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};
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} catch (cpuError) {
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if (cpuError?.name === "AbortError") throw cpuError;
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throwIfAborted(options.signal);
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throw new AggregateError(
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[gpuError, cpuError],
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`WebGPU 실행 실패 후 CPU fallback도 실패했습니다: ${cpuError.message}`,
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);
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}
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}
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}
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