Acceleration of the matrix multiplication of Radiance three phase daylighting simulations with parallel computing on heterogeneous hardware of personal computer

TitleAcceleration of the matrix multiplication of Radiance three phase daylighting simulations with parallel computing on heterogeneous hardware of personal computer
Publication TypeJournal Article
LBNL Report NumberLBNL-6461E
Year of Publication2013
AuthorsZuo, Wangda, Andrew McNeil, Michael Wetter, and Eleanor S. Lee
JournalJournal of Building Performance Simulation
Keywordsdaylighting simulation, graphics processing unit, multicore central processing unit, OpenCL, parallel computing
Abstract

Building designers are increasingly relying on complex fenestration systems to reduce energy consumed for lighting and HVAC in low energy buildings. Radiance, a lighting simulation program, has been used to conduct daylighting simulations for complex fenestration systems. Depending on the configurations, the simulation can take hours or even days using a personal computer. This paper describes how to accelerate the matrix multiplication portion of a Radiance three-phase daylight simulation by conducting parallel computing on heterogeneous hardware of a personal computer. The algorithm was optimized and the computational part was implemented in parallel using OpenCL. The speed of new approach was evaluated using various daylighting simulation cases on a multicore central processing unit and a graphics processing unit. Based on the measurements and analysis of the time usage for the Radiance daylighting simulation, further speedups can be achieved by using fast I/O devices and storing the data in a binary format.

DOI10.1080/19401493.2013.795193
AttachmentSize
PDF1.7 MB