Title :
Accelerating three-dimensional FDTD calculations on GPU clusters for electromagnetic field simulation
Author :
Nagaoka, T. ; Watanabe, Shigetaka
Author_Institution :
Electromagn. Compatibility Lab., Nat. Inst. of Inf. & Commun. Technol., Koganei, Japan
fDate :
Aug. 28 2012-Sept. 1 2012
Abstract :
Electromagnetic simulation with anatomically realistic computational human model using the finite-difference time domain (FDTD) method has recently been performed in a number of fields in biomedical engineering. To improve the method´s calculation speed and realize large-scale computing with the computational human model, we adapt three-dimensional FDTD code to a multi-GPU cluster environment with Compute Unified Device Architecture and Message Passing Interface. Our multi-GPU cluster system consists of three nodes. The seven GPU boards (NVIDIA Tesla C2070) are mounted on each node. We examined the performance of the FDTD calculation on multi-GPU cluster environment. We confirmed that the FDTD calculation on the multi-GPU clusters is faster than that on a multi-GPU (a single workstation), and we also found that the GPU cluster system calculate faster than a vector supercomputer. In addition, our GPU cluster system allowed us to perform the large-scale FDTD calculation because were able to use GPU memory of over 100 GB.
Keywords :
bioelectric phenomena; biomagnetism; finite difference time-domain analysis; graphics processing units; medical computing; message passing; parallel architectures; physiological models; simulation; 3D FDTD calculation acceleration; 3D FDTD code; CUDA-MPI; NVIDIA Tesla C2070; anatomically realistic computational human model; biomedical engineering; compute unified device architecture; electromagnetic field simulation; finite difference time domain; large scale computing; message passing interface; multiGPU cluster environment; multiGPU clusters; Biological system modeling; Computational modeling; Finite difference methods; Finite element methods; Graphics processing units; Synchronization; Time domain analysis; Biomedical Engineering; Electromagnetic Fields; Humans; Models, Theoretical;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2012 Annual International Conference of the IEEE
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-4119-8
Electronic_ISBN :
1557-170X
DOI :
10.1109/EMBC.2012.6347287