Finite difference numerical method for the superlattice Boltzmann transport equation and case comparison of CPU(C) and GPU(CUDA) implementations

Journal Article · Mon Dec 01 00:00:00 EST 2014 · Journal of Computational Physics

DOI:https://doi.org/10.1016/J.JCP.2014.08.028· OSTI ID:22382147

Priimak, Dmitri

We present a finite difference numerical algorithm for solving two dimensional spatially homogeneous Boltzmann transport equation which describes electron transport in a semiconductor superlattice subject to crossed time dependent electric and constant magnetic fields. The algorithm is implemented both in C language targeted to CPU and in CUDA C language targeted to commodity NVidia GPU. We compare performances and merits of one implementation versus another and discuss various software optimisation techniques.

• OSTI ID: 22382147
• Journal Information: Journal of Computational Physics, Vol. 278; Other Information: Copyright (c) 2014 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-9991
• Country of Publication: United States
• Language: English

Related Subjects

97 MATHEMATICAL METHODS AND COMPUTING
ALGORITHMS
BOLTZMANN EQUATION
COMPARATIVE EVALUATIONS
COMPUTER CODES
ELECTRONS
FINITE DIFFERENCE METHOD
IMPLEMENTATION
OPTIMIZATION
PERFORMANCE
SEMICONDUCTOR MATERIALS
SUPERLATTICES
TIME DEPENDENCE
TRANSPORT
TWO-DIMENSIONAL CALCULATIONS