Přístupnostní navigace
E-přihláška
Vyhledávání Vyhledat Zavřít
Detail publikace
DVOŘÁK, R. ŠIMEK, V. ZBOŘIL, F. DRÁBEK, V.
Originální název
GPU Accelerated Solver of Time-Dependent Air Pollutant Transport Equations
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
Main objective of this paper is to outline possible ways how to achieve a substantial acceleration in case of advection-diffusion equation (A-DE) calculation, which is commonly used for a description of the pollutant behavior in atmosphere. A-DE is a kind of partial differential equation (PDE) and in general case it is usually solved by numerical integration due to its high complexity. These types of calculations are time consuming thus the main idea of our work is to adopt CUDA platform and commodity GPU card to do the calculations in a faster way. The solution is based on method of lines with 4th order Runge-Kutta scheme to handle the integration. As a matter of fact, the selected approach involves number of auxiliary variables and thus the memory management is critical in order to achieve desired performance. From a technical point of view, we have implemented a particular variant of the A-DE system, where the pollutant concentration is time-dependent. An efficient data handling is primarily based on the exploitation of shared memory blocks and texture caches inside GPU chip. Detailed evaluation of the obtained results is given in this paper where an astonishing execution speed up of GPU-based solution is demonstrated in comparison to standard CPU.
Klíčová slova
CUDA; GPU; advection-diffusion equation; partial differential equation; Runge-Kutta; acceleration
Autoři
DVOŘÁK, R.; ŠIMEK, V.; ZBOŘIL, F.; DRÁBEK, V.
Rok RIV
2009
Vydáno
5. 5. 2009
Nakladatel
IEEE Computer Society
Místo
Patras
ISBN
978-0-7695-3277-6
Kniha
12th EUROMICRO Conference on Digital System Design DSD 2009
Strany od
1
Strany do
7
Strany počet
BibTex
@inproceedings{BUT33783, author="Radim {Dvořák} and Václav {Šimek} and František {Zbořil} and Vladimír {Drábek}", title="GPU Accelerated Solver of Time-Dependent Air Pollutant Transport Equations", booktitle="12th EUROMICRO Conference on Digital System Design DSD 2009", year="2009", pages="1--7", publisher="IEEE Computer Society", address="Patras", doi="10.1109/DSD.2009.146", isbn="978-0-7695-3277-6" }