An Efficient Method for Defining Multivariate Functions Using Expression Templates for Arrays in C++ and CUDA

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Mahmoodi Darian Hossein

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Journal: Modeling in Engineering Year:2019 | Volume:16 | Issue:55 Page(s): 113-131

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Information Journal Paper

Title

An Efficient Method for Defining Multivariate Functions Using Expression Templates for Arrays in C++ and CUDA

Author(s)

Mahmoodi Darian Hossein | Issue Writer Certificate

Keywords

Expression templatesQ1

Variadic templatesQ1

C++Q1

Graphics processing unitQ1

CUDAQ1

Abstract

In this paper an efficient method for defining multi-variable functions using Expression templates for array computations in computational fluid dynamics simulations in C++ is introduced. The method is implemented using Variadic templates which is a new feature in C++. One of the advantages of the method is its easy of use for users of computational fields. The user can define and use his own function with any number of input arguments without having knowledge of templates programming concepts. The present method may replace conventional Expression templates in developing numerical libraries. For three different functions, including arithmetic operations and trigonometric functions, the efficiency of the proposed method for arrays of different sizes is compared with that of the conventional Expression templates, two different C++ syntax and Fortran language. Furthermore, the performance of the method in terms of the compilation time and executable file size is demonstrated. A similar comparison on Graphic Processing Units (GPU) using CUDA is made and the efficiency of the method is shown. The results indicate that, for any array size, the present method has a very good performance in terms of computational time, compilation time and executable file size. Finally, as an application of the proposed method, a numerical simulation is done.

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APA: Copy

Mahmoodi Darian, Hossein. (2019). An Efficient Method for Defining Multivariate Functions Using Expression Templates for Arrays in C++ and CUDA. JOURNAL OF MODELING IN ENGINEERING, 16(55 ), 113-131. SID. https://sid.ir/paper/359447/en

Vancouver: Copy

Mahmoodi Darian Hossein. An Efficient Method for Defining Multivariate Functions Using Expression Templates for Arrays in C++ and CUDA. JOURNAL OF MODELING IN ENGINEERING[Internet]. 2019;16(55 ):113-131. Available from: https://sid.ir/paper/359447/en

IEEE: Copy

Hossein Mahmoodi Darian, “An Efficient Method for Defining Multivariate Functions Using Expression Templates for Arrays in C++ and CUDA,” JOURNAL OF MODELING IN ENGINEERING, vol. 16, no. 55 , pp. 113–131, 2019, [Online]. Available: https://sid.ir/paper/359447/en

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