S4595-openacc-openmp4-apps-gpu-xeon-phi

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Portable PerformanceOp>miza>ons Ninja version, Best op>miza>on, Ideal performance Frog version, achieving reasonable performance on both GPU and Xeon PhiAlgorithm changes Compiler technology Naïve version, simple direc>ves, 0 op>miza>on 16
Op>miza>on for Portable Performance SystemaDc Accelerators OpDmizaDons Applica>ons Direc>ves SMSIMD Friendly AlgoArithme>c IntensityREGRegister Level Data Locality SGEMMSHMEMSHMEM Level Data Locality FFTLBMData Direc>vesGMGM Level Data Locality Algorithm ChangesStencilSPMVLoop Direc>vesHMCompiler Technology17
Page 1 and 2: 2014@San JoseShanghai Jiao Tong Un
Page 3 and 4: Why Direc>ve-‐based Programmi
Page 5 and 6: OpenACC2• Standard version evolut
Page 7 and 8: OpenACC2Parallel KernelDataLoopHost
Page 9 and 10: HOMP, OpenMP compiler for CUDA
Page 13 and 14: Performance impact of K40 and
Page 15: Performance Portability• Include
Page 19 and 20: Shared Memory/L2 (SHMEM) Level
Page 21 and 22: SIMD Friendly Algorithm [ISCA12]
Page 24 and 25: Outline• OpenACC2 and OpenMP4•

S4595-openacc-openmp4-apps-gpu-xeon-phi

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