Parallelisation methods applied to a finite element code

Sammanfattning: With Moore’s Law being verified, all we had to do was wait a few years to get more computing power. However, this increase in power is no longer exclusively based on the performance of the processor, but more and more on its ability to execute several tasks simultaneously. In the context of an internship at Dassault Aviation, various methods have been studied to take advantage of parallel computing, applied to a structural finite element code. This report presents the use of several processor cores in parallel with OpenMP. Then, two methods of decomposition into sub-domains allowing, thanks to MPI, the use of several computers to solve the same problem are presented. These two techniques are complementary and together allow to take thebest advantage of highly parallel computing servers.