Parallel computations of the step response of a floor heater with the use of a graphics processing unit. Part 1: models and algorithms

Bulletin of the Polish Academy of Sciences. Technical Sciences

J. Go??biowskiCorresponding authorFaculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska St., 15-351 Bia?ystok, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar¹  J. ForencFaculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska St., 15-351 Bia?ystok, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar¹ 

[1] Faculty of Electrical Engineering, Bialystok University of Technology, 45D Wiejska St., 15-351 Bia?ystok, Poland

关键词: Keywords : air floor heating;    step response;    implicit finite difference method;    parallel computations;    GPGPU;   

DOI  :  10.2478/bpasts-2013-0101

学科分类：工程和技术（综合）

来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science

【 摘 要 】

The article presents a method of computing the step response of an air floor heater. The method implements parallel algorithms on a graphics processing unit. In the analyzed concrete slab heating ducts are placed. Hot air is transferred through them, thanks to which the heat penetrates into the slab. Heat transfer into the environment takes place on the top surface of the floor by natural convection and radiation. The bottom surface of the slab is thermally insulated. A two-dimensional heat equation was discretized with the use of the implicit finite difference method. In order to solve the obtained system of equations, the conjugate gradient method was used. Moreover, in order to examine the possibility of shortening the computations time, the algorithm of this method was implemented on a graphics processing unit. A computer program, using the CUDA parallel computing platform and linear algebra libraries CUBLAS and CUSPARSE, was developed

【 授权许可】

Unknown