# K Overview: HPC Knowledge The theoretical knowledge of HPC provides the background to understand how supercomputers and HPC environments operate. This enables practitioners to effectively use such environments. ## Learning objectives * Explain the hardware, software, and operation of HPC systems. * Construct and judge simple performance models for systems and applications. * Understand that there are performance frontiers. * Explain why it is a special challenge to achieve good speedups and good efficiencies if the number of processing elements is steadily increased. * Compare different paradigms for the parallelization of applications. * Construct and execute an HPC workflow on an HPC system. * Comprehend job scheduling principles. * Apply a cost model to compute the costs for running a workflow on an HPC system. ## Subskills