Kepler's SHUFFLE (SHFL): Tips and Tricks | GTC 2013

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Variants• 4 variants (idx, up, down, bfly):a b c d e f g hshfl.idx shfl.up shfl.down shfl.bflyh d f e a c c b g h a b c d e f c d e f g h a b c d a b g h e fIndexedany-to-anyShift right to n thneighbourShift left to n thneighbourButterfly (XOR)exchange
Instruction (PTX)Optional dst. predicateLane/offset/maskshfl.mode.b32 d[|p], a, b, c;Dst. registerSrc. registerBound
Page 3: Shuffle (SHFL)• Instruction to ex
Page 7 and 8: Performance Experiment• One eleme
Page 9 and 10: Performance Experiment• Shared me
Page 11 and 12: Performance Experiment (fp64)Execut
Page 13 and 14: Broadcast• All threads read from
Page 15 and 16: Scan• Code#pragma unrollfor( int
Page 17 and 18: Bitonic Sortx:11 3 8 5 10 15 9 7 12
Page 19 and 20: Bitonic Sortint swap(int x, int mas
Page 21 and 22: Transpose• You can use SMEM to im
Page 23: Conclusion• SHFL is available for

Kepler's SHUFFLE (SHFL): Tips and Tricks | GTC 2013

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