Procesos Paralelos en Go lang

process_parallel.go

package main

import (
	"fmt"
	"runtime"
	"sync"
	"time"
)

func main() {
	runtime.GOMAXPROCS(2)

	var waitGroup sync.WaitGroup
	waitGroup.Add(4)

	fmt.Println("Start Go Routines")

	go func() {
		defer waitGroup.Done()
		time.Sleep(10 * time.Second)
		fmt.Println("Finish Rutina 1")
	}()

	go func() {
		defer waitGroup.Done()
		time.Sleep(5 * time.Second)
		fmt.Println("Finish Rutina 2")
	}()

	go func() {
		defer waitGroup.Done()
		time.Sleep(3 * time.Second)
		fmt.Println("Finish Rutina 3")
	}()

	go func() {
		defer waitGroup.Done()
		time.Sleep(9 * time.Second)
		fmt.Println("Finish Rutina 4")
	}()

	fmt.Println("Waiting ...")
	waitGroup.Wait()
	fmt.Println("Finish")
}