Large-scale electromagnetic analysis of realistic human-body exposure using GPU supercomputer

Numerical analyses of a human-body exposure have been performed on a GPU supercomputer of TSUBAME system. We have developed a numerical FDTD code for multi-node/multi-GPU parallel computations. Its validity has been demonstrated by scattering analysis of dielectric spheres in comparison with Mie's results. Whole-body average SAR of a Japanese adult male model illuminated to an EM planewave at 1-10 GHz was then calculated using GPU supercomputer. It has been indicated that the WBA-SAR of human model with 2 mm tends to show a higher value than those of 0.5 mm. Speed of more than 12 billion cells per second was achieved.