private void RunFibonacciComputation(int nbThreads)
        {
            var fibo = new FibonacciComputation(nbThreads);

            fibo.Run();
        }
 private void StartFibonacciComputation(int nbThreads)
 {
     _fibonacciComputation = new FibonacciComputation(nbThreads);
     _fibonacciComputation.Start();
 }