Title :
Towards an efficient multi-stage Riemann solver for nuclear physics simulations
Author :
Cygert, Sebastian ; Porter-Sobieraj, Joanna ; Kikola, Daniel ; Sikorski, Jan ; Slodkowski, Marcin
Author_Institution :
Fac. of Math. & Inf. Sci., Warsaw Univ. of Technol., Warsaw, Poland
Abstract :
Relativistic numerical hydrodynamics is an important tool in high energy nuclear science. However, such simulations are extremely demanding in terms of computing power. This paper focuses on improving the speed of solving the Riemann problem with the MUSTA-FORCE algorithm by employing the CUDA parallel programming model. We also propose a new approach to 3D finite difference algorithms, which employ a GPU that uses surface memory. Numerical experiments show an unprecedented increase in the computing power compared to a CPU.
Keywords :
digital simulation; finite difference methods; hydrodynamics; mathematics computing; nuclear engineering computing; parallel architectures; parallel programming; 3D finite difference algorithms; CPU; CUDA parallel programming model; GPU; MUSTA-FORCE algorithm; high energy nuclear science; multistage Riemann solver; nuclear physics simulations; relativistic numerical hydrodynamics; surface memory; Computational modeling; Graphics processing units; Hydrodynamics; Instruction sets; Mathematical model; Numerical models; Registers;
Conference_Titel :
Computer Science and Information Systems (FedCSIS), 2013 Federated Conference on
Conference_Location :
Krako??w