Author(s)

G.M. Sechi, P. Zuddas, A. Podda & P. Susnik

Abstract

Optimization of flows in a water resource systems leads to a network linear programming model that is conveniently solved by specialized algorithms. Here are shortly described and tested four efficient codes selected among a wide spectrum of approaches for solving minimum cost problems. They can be divided in two classes, the first based on a pure network primal algorithm, the second on a relaxation approach algorithm, They are applied to a real water resource system in Sardinia (Italy). It is shown that RELAX performs better than the well known NETFLOW code. Nevertheless the other two primal simplex codes seem to be more competitive. Moreover EASYNET is close to the time of RELAX and also has a more stable behaviour. Best results are obtained from OSL with a flat trend a

Keywords