Performance of Elbrus Processors for Computational Materials Science Codes and Fast Fourier Transform

Modern Elbrus-4S and Elbrus-8S processors provide a level of floating-point performance close to that of widespread x86_64 CPUs that are predominantly used in high-performance computing (HPC). The uniqueness of the software ecosystem of Elbrus processors requires special attention in the case of their deployment for execution of mainstream computational codes. In this paper, we consider the performance of one widely used code for computational materials science (VASP), as well as FFT libraries. The results for the Elbrus processors are embedded into the context of performance of modern x86_64 CPUs.