Is this a correct way of dealing with Celluloid?

[bstrom]

require 'celluloid/current'
require 'benchmark'

class Integer
  def fib
    if self <= 1; self else ( self-1 ).fib  + ( self-2 ).fib end
  end
end

class FibWorker
  include Celluloid
  def do_fib i
    i.fib
  end
end

def fib_actor
  pool = FibWorker.pool size: 8
  fibs = []
  38.times do | i | fibs << pool.future.do_fib(i) end
  38.times do | i | fibs << pool.future.do_fib(i) end
  38.times do | i | fibs << pool.future.do_fib(i) end
  38.times do | i | fibs << pool.future.do_fib(i) end
  fibs.each do |x| puts x.value end
end

def fib_no_actor
  38.times do | i | puts i.fib end
  38.times do | i | puts i.fib end
  38.times do | i | puts i.fib end
  38.times do | i | puts i.fib end
end

puts Benchmark.measure { fib_no_actor }
puts Benchmark.measure { fib_actor }

I'm wondering if this is the "correct" way of using celluloid if you want to repeat something several times in async? Is there any better way than storing each Future in an array and then call the value to wait for each to finish?