This article presents an idea and structure for a final practical assignment on parallel computing, which was given to Master's degree students at the end of their studies at the MSU Faculty of Computational Mathematics and Cybernetics in the fall semester of 2016. The main objective of the assignment is to teach students to follow a proper approach to describing algorithm parallel structure and properties, which is the key link in the supercomputer co-design chain. In spite of the fact that the assignment was challenging and labor-intensive, for both students and teachers, we rate this experiment as a highly successful one. This assignment is extremely useful, relevant and important, particularly at the end of the education, as it requires joining individual elements of knowledge and skills that students have previously acquired during various courses.