Referee Report on C514: Parallel Dynamic Scheduling in a Cluster of Computers I can suggest the following changes 1) The authors discuss the water supply problem in one particular Spanish city How does this problem scale to other cities -- are there big cities which are hundreds times bigger and so more computationally demanding. This could motivate problem 2) The English generally reads well but tere are occasional glitches. For instance obtention page 3 llow nexte page 4 most part page 5 3) I think section 5 could be strengthened. Limits of scaling should be discussed The figure (13) should show speed up and not time