62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
import { createRequire } from 'node:module';
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import path from 'node:path';
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const harnessPath = process.env.JARVIS_HARNESS_PATH || '/home/raven/dev/agent-harness';
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const require = createRequire(import.meta.url);
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process.env.QVAC_CONFIG_PATH ||= path.resolve(new URL('../qvac.config.json', import.meta.url).pathname);
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const Agent = require(path.join(harnessPath, 'index.js'));
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let loadPromise = null;
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let ownerCount = 0;
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export const QVAC_MASTER = Object.freeze({
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configPath: process.env.QVAC_CONFIG_PATH,
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model: process.env.JARVIS_QVAC_MODEL || 'qwen3.5-4b',
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device: 'gpu',
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gpuLayers: 99,
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});
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export async function acquireQvac() {
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ownerCount += 1;
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if (!loadPromise) {
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const resources = await Agent.engine.resources();
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const gpuVisible = (resources.gpus?.length || 0) > 0 ||
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Boolean(resources.drivers?.vulkan || resources.drivers?.cuda || resources.drivers?.opencl || resources.gpu);
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if (!gpuVisible) {
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ownerCount = Math.max(0, ownerCount - 1);
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throw new Error('Jarvis requires a QVAC-visible GPU backend; run npm run gpu-doctor');
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}
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loadPromise = Agent.engine.load({
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model: QVAC_MASTER.model,
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tools: true,
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device: 'gpu',
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gpu_layers: QVAC_MASTER.gpuLayers,
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mmprojUseGpu: true,
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}).then((loaded) => {
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if (loaded.device !== 'gpu') {
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throw new Error(`Jarvis requires GPU QVAC inference; loaded device was ${loaded.device}`);
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}
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return loaded;
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}).catch((error) => {
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loadPromise = null;
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ownerCount = Math.max(0, ownerCount - 1);
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throw error;
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});
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}
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return loadPromise;
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}
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export function releaseQvac() { ownerCount = Math.max(0, ownerCount - 1); }
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export async function closeQvac() {
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if (ownerCount > 0) return;
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loadPromise = null;
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await Agent.engine.close();
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}
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export function qvacStatus() {
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return { ...QVAC_MASTER, owners: ownerCount, loaded: Agent.engine.getLoaded() };
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}
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export { Agent };
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