CUB Modules

CUB provides state-of-the-art, reusable software components for every layer of the CUDA programming model:

• Parallel primitives

  • Warp-wide “collective” primitives

    • Cooperative warp-wide prefix scan, reduction, etc.

    • Safely specialized for each underlying CUDA architecture

  • Block-wide “collective” primitives

    • Cooperative I/O, sort, scan, reduction, histogram, etc.

    • Compatible with arbitrary thread block sizes and types

  • Device-wide primitives

    • Parallel sort, prefix scan, reduction, histogram, etc.

    • Compatible with CUDA dynamic parallelism