Inside our University we have a group that works on parallel computing. My colleagues work in various directions, using standard technologies as OpenMP or MPI. I confess I am very ignorant on the details. However, starting from our hydrological problems, it happens that we embraced OMS that implements an intrinsic parallelism which acts between components. Besides, my PhD student Francesco Serafin, introduced a new way to parallelize our problems called Net3. All of these things are shortly presented in the slides below.