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We present a novel optimized 3DDDA ray tracing algorithm on GPUs with CUDA architecture. The grid data is built on the host and then copied to the device. The whole traversing procedure is done on the GPU device. So it just needs the data transformation between the host and the device once. The results show that the CUDA implementation parallel code using different block size on GPU achieves 2.9x...
High performance computing (HPC) is widely applied in the academia and business community. Users can share high-performance clusters through a specified interface. But this approach cannot supply users with their private HPC platform, leading to bad isolation between users and lack of control on the hardware and software environment. In this paper, we adopt cloud computing technology to establish...
In the past decade researchers have been interested in building system based on the open source software (OSS) or commercial-off-the-shelf (COTS) more and more. Since most of functions are provided by the OSS/COTS how to choose the suitable components has to be the first issue. Now there are some models targeted this problem but we think most of existing models are impractical. Finally, in this paper...
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