9006

Accelerating Simulation of Agent-Based Models on Heterogeneous Architectures

Jin Wangy, Norman Rubinz, Haicheng Wuy, Sudhakar Yalamanchiliy
Georgia Institute of Technology
Sixth Workshop on General-Purpose Computation on Graphics Processing Units (GPGPU-6), 2013
@inproceedings{wang2013gpgpu6,

   author={Wang, J. and Rubin, N. and Wu, H. and Yalamanchili, S.},

   booktitle={Sixth Workshop on General-Purpose Computation on Graphics Processing Units (GPGPU-6)},

   title={Accelerating Simulation of Agent-Based Models on Heterogeneous Architectures},

   year={2013},

   month={March}

}

Download Download (PDF)   View View   Source Source   

503

views

The wide usage of GPGPU programming models and compiler techniques enables the optimization of data-parallel programs on commodity GPUs. However, mapping GPGPU applications running on discrete parts to emerging integrated heterogeneous architectures such as the AMD Fusion APU and Intel Sandy/Ivy bridge with the CPU and the GPU on the same die has not been well studied. Classic time-step simulation applications represented by agent-based models have the intrinsic parallel structure that is a good fit for GPGPU architectures. However, when mapping these applications directly to the integrated GPUs, the performance may degrade due to less computation units and lower clock speed. This paper proposes an optimization to the GPGPU implementation of the agent-based model and illustrates it in the traffic simulation example. The optimization adapts the algorithm by moving part of the workload to the CPU to leverage the integrated architecture and the on-chip memory bus which is faster than the PCIe bus that connects the discrete GPU and the host. The experiments on discrete AMD Radeon GPU and AMD Fusion APU demonstrate that the optimization can achieve 1.08{2.71x performance speedup on the integrated architecture over the discrete platform.
VN:F [1.9.22_1171]
Rating: 0.0/5 (0 votes cast)

* * *

* * *

Like us on Facebook

HGPU group

167 people like HGPU on Facebook

Follow us on Twitter

HGPU group

1275 peoples are following HGPU @twitter

* * *

Free GPU computing nodes at hgpu.org

Registered users can now run their OpenCL application at hgpu.org. We provide 1 minute of computer time per each run on two nodes with two AMD and one nVidia graphics processing units, correspondingly. There are no restrictions on the number of starts.

The platforms are

Node 1
  • GPU device 0: AMD/ATI Radeon HD 5870 2GB, 850MHz
  • GPU device 1: AMD/ATI Radeon HD 6970 2GB, 880MHz
  • CPU: AMD Phenom II X6 @ 2.8GHz 1055T
  • RAM: 12GB
  • OS: OpenSUSE 13.1
  • SDK: AMD APP SDK 2.9
Node 2
  • GPU device 0: AMD/ATI Radeon HD 7970 3GB, 1000MHz
  • GPU device 1: nVidia GeForce GTX 560 Ti 2GB, 822MHz
  • CPU: Intel Core i7-2600 @ 3.4GHz
  • RAM: 16GB
  • OS: OpenSUSE 12.2
  • SDK: nVidia CUDA Toolkit 6.0.1, AMD APP SDK 2.9

Completed OpenCL project should be uploaded via User dashboard (see instructions and example there), compilation and execution terminal output logs will be provided to the user.

The information send to hgpu.org will be treated according to our Privacy Policy

HGPU group © 2010-2014 hgpu.org

All rights belong to the respective authors

Contact us: