SAR成像處理在高性能計算平臺上的性能分析和優(yōu)化
Performance Analysis and Optimization of SAR Imaging on HPC Platforms
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摘要: 高性能計算機系統(tǒng)是現(xiàn)代SAR地面處理系統(tǒng)中的重要組成部分。與其它高性能計算問題相比，SAR成像處理有其特殊性。隨著高性能計算服務器架構(gòu)的不同，SAR成像處理的性能存在很大的差別。該文分析了高性能計算服務器架構(gòu)中的各個部分對SAR成像處理性能的影響，并在此基礎上指出可以通過一系列典型測試，較為準確地預測在多節(jié)點環(huán)境下的SAR成像處理性能。通過對測試和計算結(jié)果的分析，進一步指出對SAR成像處理的優(yōu)化方向和策略。
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關(guān)鍵詞:
- SAR成像處理; 高性能計算
Abstract: High Performance Computing (HPC) system is an important part of a modern SAR processing system. SAR imaging has its specific characteristics compared with other HPC problems. It performs with great difference on different HPC architectures. The effects on SAR imaging performance by every part of the HPC architecture are analyzed on this paper. Based on this analysis, some benchmarking could be made to more accurately predict the SAR imaging performance on a multi-nodes environment. Prom these benchmarks, the effective way to optimize the SAR imaging could be found. -
Raney R K,Runge H,Bamler R,Cumming I G,Wong F H.Precision SAR processing using chirp scaling.IEEE Trans.on Geoscience and Remote Sensing.1994,32(4):786-799.[2]Ding Chibiao,et al..Large beamwidth spaceborne SAR processing using chirp scaling.IGARSS99,Hamburg,Germany.1999,Vol.1:527-529.[3]Intel.Intel Pentium 4 and Intel Xeon Processor Optimization Reference Manual.2002.[4]Intel.IA-32 Intel Architecture Software Developers Manual.2002.[5]SGI.Performance Tuning Optimization for Origin 2000 and Onyx2.1997.[6]Duhamel P,Holtmann H.Split-radix FFT algorithm[J].Electronics Letters.1984,20(1):14-16[7]Intel.Approximate Math Library for Intel Streaming SIMD Extensions.Oct.2000. -
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