parallel 은 아직 완전하지 않다.

package main
import "fmt"
import "runtime"
import "os"


func main() {


NCPU := runtime.NumCPU()
fmt.Println(NCPU)

runtime.GOMAXPROCS( NCPU)


maxcpu := os.Getenv("GOMAXPROCS")
fmt.Println( "[", maxcpu, "]")

}