The HPCVL working template: a tool for high-performance programming

The HPCVL working template is a set of scripts and libraries that facilitates programming for high-performance machines. This is achieved by providing three main functionalities: (1) the maintenance of multiple versions with only a single original source, (2) an automatic relative debugger that is suitable to use one version of the code (often the serial one) to check the correctness of another (for instance, the parallel one), and (3) a scheme for simple CPU timing, for example to determine the sections of the serial code worthwhile parallelizing, or to find the scaling properties of the parallel one. In this paper, we demonstrate the practical application of the working template by means of a simple example.