Acceleration of radiance for lighting simulation by using parallel computing with OpenCL

Wangda Zuo, Andrew Mcneil, Michael Wetter, Eleanor Lee

Research output: Contribution to conferencePaper

2 Scopus citations

Abstract

We report on the acceleration of annual daylighting simulations for fenestration systems in the Radiance ray-tracing program. The algorithm was optimized to reduce both the redundant data input/output operations and the floating-point operations. To further accelerate the simulation speed, the calculation for matrix multiplications was implemented using parallel computing on a graphics processing unit. We used OpenCL, which is a cross- platform parallel programming language. Numerical experiments show that the combination of the above measures can speed up the annual daylighting simulations 101.7 times or 28.6 times when the sky vector has 146 or 2306 elements, respectively.

Original languageEnglish (US)
Pages110-117
Number of pages8
StatePublished - Dec 1 2011
Event12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011 - Sydney, NSW, Australia
Duration: Nov 14 2011Nov 16 2011

Other

Other12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011
CountryAustralia
CitySydney, NSW
Period11/14/1111/16/11

ASJC Scopus subject areas

  • Computer Science Applications
  • Building and Construction
  • Architecture
  • Modeling and Simulation

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  • Cite this

    Zuo, W., Mcneil, A., Wetter, M., & Lee, E. (2011). Acceleration of radiance for lighting simulation by using parallel computing with OpenCL. 110-117. Paper presented at 12th Conference of International Building Performance Simulation Association Building Simulation 2011, BS 2011, Sydney, NSW, Australia.