Object-oriented plasma PIC simulations in Fortran 90 and C++ on MPP`s
Viktor K. Decyk, Charles D. Norton, Boleslaw Karol Szymanski · OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) · 1997
One goal of the Numerical Turbulent Transport Project is to model a tokamak (fusion) plasma, with 10{sup 8} - 10{sup 9} particles, to explain anomalous transport of particles and energy. Since this ambitious HPCC Project involves multiple institutions and multidisciplinary collaborations, several project members have been investigating object-oriented techniques for designing complex particle-in-cell (PIC) codes. We compare our experiences in object-oriented programming using Fortran 90 and C++ in this application. Our Fortran 90 programs axe faster than the equivalent C++ versions, yet the abstraction modeling capabilities are comparably powerful.