CUDA-MPI-FDTD implementation of Maxwell's equations in general dispersive media

Mohammad R. Zunoubi; Jason Payne; William P. Roach

doi:10.1117/12.918429

9 February 2012 CUDA-MPI-FDTD implementation of Maxwell's equations in general dispersive media

Mohammad R. Zunoubi, Jason Payne, William P. Roach

Proceedings Volume 8221, Optical Interactions with Tissue and Cells XXIII; 822115 (2012) https://doi.org/10.1117/12.918429
Event: SPIE BiOS, 2012, San Francisco, California, United States

Abstract

In this research, we present the first MPI-CUDA implementation of Finite-Difference Time-Domain (FDTD) discretization of Maxwell's equations in dispersive media that uses the MPI API to assign each CPU node its share of the computational domain and GPUs to their corresponding CPU threads. By taking advantage of the CUDA programming model, we present a unique implementation of the FDTD scheme that exploits the memory hierarchy of GPUs, including the global, texture, and shared memory. This enables us to tackle problems that are otherwise computationally prohibitive. Practical results will be presented along with a measure of speedup factors achieved when using multiple GPU processors.

Citation Download Citation

Mohammad R. Zunoubi, Jason Payne, and William P. Roach "CUDA-MPI-FDTD implementation of Maxwell's equations in general dispersive media", Proc. SPIE 8221, Optical Interactions with Tissue and Cells XXIII, 822115 (9 February 2012); https://doi.org/10.1117/12.918429

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