Publication detail

GPU Accelerated Solver of Time-Dependent Air Pollutant Transport Equations

DVOŘÁK, R. ŠIMEK, V. ZBOŘIL, F. DRÁBEK, V.

Original Title

GPU Accelerated Solver of Time-Dependent Air Pollutant Transport Equations

Type

conference paper

Language

English

Original Abstract

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.

Keywords

CUDA; GPU; advection-diffusion equation; partial differential equation; Runge-Kutta; acceleration

Authors

DVOŘÁK, R.; ŠIMEK, V.; ZBOŘIL, F.; DRÁBEK, V.

RIV year

2009

Released

5. 5. 2009

Publisher

IEEE Computer Society

Location

Patras

ISBN

978-0-7695-3277-6

Book

12th EUROMICRO Conference on Digital System Design DSD 2009

Pages from

1

Pages to

7

Pages count

7

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"
}