async-await cluster

run multiprocessing on line. 日本語

Feature

• Await cluster process on async function
• Auto distributing Jobs.
• Force dividing worker script.

Install

npm install async-await-cluster

Example

example show How To Use.

Worker

Worker performs given jobs.

Process must be written to another file(like example/imageWorker.ts).

uuidWorker

import cluster from "cluster"
const uuidv4 = require('uuid/v4');

if (cluster.isWorker) {
    process.on("message", async (jobArg: any) => {
        //generate uuid(take compute resource) and return result.
        const id =uuidv4();
        process.send(id)
    });
}

Master

master generates job arguments and specifies a script for processing to be executed in parallel.

uuidMaster

import {parallelCreate} from "async-await-cluster";

 const main = async () => {
    // generate job arguments
    const jobs = Array.from({length: 1000}, (_, idx) => idx);
    // pass worker script path
    const uuids = await parallelCreate(jobs.slice(0), __dirname + "/" + "uuidWorker.js");
}
main()

Not Every Multi Processing makes Faster

Launching and Messaging process take a few more costs.

Whether parallel processing speeds up depends on the processing to be executed and the number of processes and threads on your computer.

example/generateUUIDv4Parallel is not faster than single process.