Bachelor thesis covers theoretical as well as practical set up of parallel computer at Department of Communication Systems "Jožef Stefan" Institute. Parallel computer with software reconfigurable network topology is intended to be used for optimisation of parallel computing algorithms, which are used in simulations and optimisations. The bachelor thesis has six chapters, which are divided into three content parts. The first part describes methodology of conversion of mathematical problems into computational ones and their division into smaller parts, which are suitable for parallel computation. Furthermore in the first chapter different computer architectures are described, i.e. single processor and multiprocessor. The second part describes a set up of the system itself and a description of a method for adaptive network configuration. This part also includes a configuration of GNU/Linux operating system and boot of the system over a network. The last part includes description of performed measurements, system testing and conclusion.