Hi everyone, I am trying to use shuffle in a Cuda kernel, can someone explain to me how to use CUDA.shfl_sync, CUDA.shfl_up_sync, CUDA.shfl_down_sync, CUDA.shfl_xor_sync with a simple example…? It’s not clear in the documentation.

[image] Using CUDA Warp-Level Primitives | NVIDIA Technical Blog NVIDIA GPUs execute groups of threads known as warps in SIMT (Single Instruction, Multiple Thread) fashion. Many CUDA programs achieve high performance by taking advantage of warp execution.

Understanding Shuffle in CUDA

General Usage Performance

Gnimuc November 14, 2022, 1:43pm 2

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Understanding Shuffle in CUDA

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