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GPU Computing for Battlefield HPC Applications: Real-time SIRE Radar Image Processing David Richie Brown Deer Techno

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GPU Computing for Battlefield HPC Applications: Real-time SIRE Radar Image Processing David Richie Brown Deer Techno

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    4. 4 Modern GPU Architectures FireStream 9250 AMD RV770 Architecture 800 SIMD superscalar processors Supports SSE-like vec4 operations IEEE single/double precision 1 TFLOP peak single precision 200 GFLOPS peak double-precision 1 GB GDDR3 on-board memory < 120 W max - 80 W typical 8-12 GFLOPS per Watt MSRP $1,000

    5. 5 Why the Interest in GPUs? N-Body Simulation N particles subject to gravitational force - canonical O(N2) algorithm As much as 123x speedup - 164 GFLOPS sustained (incl. div and sqrt)? GPU Floating-point engines are powerful, trick is to keep the pipeline full

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