final List<Computation> computations = new ArrayList<Computation>();
int i = 0;
for(Bellard.Parameter p : Bellard.Parameter.values())
for(Summation s : sums.get(p))
if (s.getValue() == null)
computations.add(distsum.new Computation(i++, p.toString(), s));
if (computations.isEmpty())
Util.out.println("No computation");
else {
timer.tick("execute " + computations.size() + " computation(s)");