It is pretty simple to start your app.js in a cluster assigning 1 core to 1 nodejs process:
1) Install the cluster module into your nodejs project directory:
npm install cluster
2) Create a file cluster.js with this code in the same directory of you app.js:
var cluster = require('cluster');
var numCPUs = require('os').cpus().length;
if (cluster.isMaster) {
for (var i = 0; i < numCPUs; i++) {
console('start on CPU#'+i);
cluster.fork();
}
cluster.on('exit', function(worker, code, signal) {
console.log('exit process#' + worker.process.pid);
});
} else {
//Point to your app.js here:
require("./app.js");
}
3) start the app.js in cluster mode:
node cluster.js
