The performance of a supercomputer is measured by the number of arithmetic operations it can perform in one second (i.e., floating-point operations per second, FLOPS). Exascale (i.e., 10¹⁸ FLOPS) supercomputers are expected to be standard in the near future, as are technologies to utilize them fully (i.e., exascale computational technology). The Center for Computational Science & e-Systems applies the latest technologies, such as exascale computational technology and machine learning techniques, and promotes the development of fundamental technologies to analyze complex phenomena in nuclear engineering.