The use of computational methods, e.g. computer-based modelling and simulations, has become a standard approach in engineering, and chemical research. In research, computational science has turned into the third pillar of scientific inquiry, together with theory and experimentation. The traditional alternative for more computational resources has been to use computational servers or supercomputers. The uniting factor in them is that they both are shared memory systems, i.e. the memory of the system is shared by all CPU resources. Presently, the price of PC hardware have dropped such a way that all the modern computation resources are built on multitude of PC-type hardware connected via fast communication channel, such as global network.

For these reasons we use the excellent calculation tools made available by the Chameleon platform (www.chameleoncloud.org)