Acceleration of Radiance for Lighting Simulation by using Parallel Computing with OpenCL

Date Published
11/2011
Publication Type
Conference Paper
Authors
LBL Report Number
LBNL-5049E
Abstract

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

Conference Name
12th International Conference of the International Building Performance Simulation Association (Building Simulation 2011)
Year of Publication
2011
Pagination
p. 110-117
Conference Location
Sydney, Australia
Custom 1
<p>Windows and Daylighting Group</p>
Organizations
Research Areas
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