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CUDA-OpenGL Interoperability to Visualize Electromagnetic Fields Calculated by FDTD

机译:CUDA-OpenGL互操作性以可视化FDTD计算出的电磁场

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摘要

In this contribution, a compute unified device architecture (CUDA) implementation of a two-dimensional finite-difference time-domain (FDTD) program is presented along with the OpenGL interoperability to visualize electromagnetic fields as an animation while an FDTD simulation is running. CUDA, which runs on a graphics processing unit (GPU) card, is used for electromagnetic field data generation and image manipulation, while OpenGL is used to draw field distribution on the screen. Since CUDA and OpenGL both run on GPU and share data through common memory in the framebuffer, the CUDA-OpenGL interoperability is very efficient in visualization of electromagnetic fields. Step by step details of implementation of this interoperability are demonstrated.
机译:在此贡献中,提出了二维有限差分时域(FDTD)程序的计算统一设备体系结构(CUDA)实现以及OpenGL互操作性,以在运行FDTD仿真时将电磁场可视化为动画。 CUDA运行在图形处理单元(GPU)卡上,用于电磁场数据生成和图像处理,而OpenGL用于在屏幕上绘制场分布。由于CUDA和OpenGL都在GPU上运行并通过帧缓冲区中的公共内存共享数据,因此CUDA-OpenGL的互操作性在电磁场的可视化方面非常有效。逐步演示了此互操作性的实现细节。

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