28 September 2016 Real-time electroholography using a multiple-graphics processing unit cluster system with a single spatial light modulator and the InfiniBand network
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Abstract
Parallel calculations of large-pixel-count computer-generated holograms (CGHs) are suitable for multiple-graphics processing unit (multi-GPU) cluster systems. However, it is not easy for a multi-GPU cluster system to accomplish fast CGH calculations when CGH transfers between PCs are required. In these cases, the CGH transfer between the PCs becomes a bottleneck. Usually, this problem occurs only in multi-GPU cluster systems with a single spatial light modulator. To overcome this problem, we propose a simple method using the InfiniBand network. The computational speed of the proposed method using 13 GPUs (NVIDIA GeForce GTX TITAN X) was more than 3000 times faster than that of a CPU (Intel Core i7 4770) when the number of three-dimensional (3-D) object points exceeded 20,480. In practice, we achieved ∼40 tera floating point operations per second (TFLOPS) when the number of 3-D object points exceeded 40,960. Our proposed method was able to reconstruct a real-time movie of a 3-D object comprising 95,949 points.
© 2016 Society of Photo-Optical Instrumentation Engineers (SPIE)
Hiroaki Niwase, Hiroaki Niwase, Naoki Takada, Naoki Takada, Hiromitsu Araki, Hiromitsu Araki, Yuki Maeda, Yuki Maeda, Masato Fujiwara, Masato Fujiwara, Hirotaka Nakayama, Hirotaka Nakayama, Takashi Kakue, Takashi Kakue, Tomoyoshi Shimobaba, Tomoyoshi Shimobaba, Tomoyoshi Ito, Tomoyoshi Ito, } "Real-time electroholography using a multiple-graphics processing unit cluster system with a single spatial light modulator and the InfiniBand network," Optical Engineering 55(9), 093108 (28 September 2016). https://doi.org/10.1117/1.OE.55.9.093108 . Submission:
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