Virtual Room Acoustics: A Comparison of Techniques for Computing 3D-FDTD Schemes Using CUDA

Webb CJ, Bilbao S. Virtual Room Acoustics: A Comparison of Techniques for Computing 3D-FDTD Schemes Using CUDA. In: AES Convention 130. Audio Engineering Society; 2011. Paper 8438. Available from: https://aes.org/publications/elibrary-page/?id=15905

@inproceedings{Webb2011_15905,
  author = {Webb, Craig J. and Bilbao, Stefan},
  title = {{Virtual Room Acoustics: A Comparison of Techniques for Computing 3D-FDTD Schemes Using CUDA}},
  booktitle = {AES Convention 130},
  note = {Paper 8438},
  year = {2011},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=15905}
}

TY  - CPAPER
TI  - Virtual Room Acoustics: A Comparison of Techniques for Computing 3D-FDTD Schemes Using CUDA
AU  - Webb, Craig J.
AU  - Bilbao, Stefan
T2  - AES Convention 130
M1  - Paper 8438
PY  - 2011
DA  - 2011/05/06
UR  - https://aes.org/publications/elibrary-page/?id=15905
PB  - Audio Engineering Society
LA  - en
AB  - High fidelity virtual room acoustics can be approached through direct numerical simulation of wave propagation in a defined space. 3D Finite Difference Time Domain schemes can be employed, and adept well to a parallel programming model. This paper examines the various approaches for calculating these schemes using the Nvidia CUDA architecture. We test the different possibilities for structuring computation, based on the available memory objects and thread-blocking model. A standard test simulation is computed at double precision under different arrangements. We find that a 2D extended tile blocking system, combined with shared memory usage, produces the fastest computation for our scheme. However, shared memory usage is only marginally faster than direct global memory access, using the latest FERMI GPUs.
ER  -