/
fibonacci2.js
33 lines (31 loc) · 958 Bytes
/
fibonacci2.js
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
/**
* how to run a fibonacci runner in multi-process mode
*/
const cpus = require('os').cpus().length
const fibonacci = require ('fibonacci')
const multi_process = require('../index')
multi_process.onMasterRun(function(master){
let start = new Date().getTime()
let stop = 0
let done = 0
master.on('message', function(worker,obj){
if (obj === 'done') done++
if (done === cpus) {
stop = new Date().getTime()
console.log('multi-process mode time cost is', (stop-start), 'ms')
process.exit()
}
})
console.log('multi-process mode begin')
start = new Date().getTime()
for (let i = 0; i < cpus; i++) {
multi_process.createWorker()
}
})
multi_process.onWorkerRun(function(worker){
worker.on('message', function(msg){
console.log('worker ' + worker.id + ' received:',msg)
})
fibonacci.iterate(10000)
worker.sendMsg2Master('done')
})