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Investigating the use of GPU-accelerated nodes for SAR image formation

Timothy D. R. Hartley, Ahmed R. Fasih, Charles A. Berdanier, Fusun Ozguner, Umit V. Catalyurek
Dept. of Biomed. Inf., Ohio State Univ., Columbus, OH, USA
IEEE International Conference on Cluster Computing and Workshops, 2009. CLUSTER ’09

@inproceedings{hartley2009investigating,

   title={Investigating the use of GPU-accelerated nodes for SAR image formation},

   author={Hartley, T.D.R. and Fasih, A.R. and Berdanier, C.A. and Ozguner, F. and Catalyurek, U.V.},

   booktitle={Cluster Computing and Workshops, 2009. CLUSTER’09. IEEE International Conference on},

   pages={1–8},

   year={2009},

   organization={IEEE}

}

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The computation of an electromagnetic reflectivity image from a set of radar returns is a computationally intensive process. Therefore, the use of high performance computing is required to form images from radar signals in a short time frame. This paper explores the use of distributed memory cluster computers and accelerator technologies such as GPUs for radar signal analysis applications, particularly backprojection image formation. We obtain good results with the use of GPUs and compare their performance in terms of execution time with distributed memory cluster computers. When using a configuration with 4 GPU-accelerated nodes, we achieve speedups up to 3.45x for different input and output data size combinations.
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