Publication Type
Conference Paper
Journal Name
ASHRAE Building Performance Modeling Conference and SimBuild
Publication Date
Page Numbers
17 to 20
Volume
2018
Issue
1
Conference Name
2018 Building Performance Analysis Conference and SimBuild
Conference Location
Chicago, Illinois, United States of America
Conference Sponsor
ASHRAE and IBPSA-USA
Conference Date
-
Abstract
EnergyPlus is the flagship whole-building energy simulation program developed by the US Department of Energy. This paper describes the various approaches to improve the performance of the interior radiant heat exchange algorithm. Vectorization, optimized Basic Linear Algebra Subprograms (BLAS) library, multithreading, and Graphical Processing Unit (GPU) computation are all investigated. The approach with the best performance, while maintaining drop-in compatibility with existing EnergyPlus code, is the optimized BLAS library. However, GPU computing has the potential to reduce simulation time by orders of magnitude with major refactoring to EnergyPlus.
