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Version: Nightly

elect_one_sync_with_mask

elect_one_sync_with_mask(mask: UInt32 = UInt32(4294967295)) -> Bool

Elects a single thread within a warp to perform an operation.

Note:

  • Only supported on NVIDIA SM90+ GPUs.
  • Maps directly to the elect.sync instruction in CUDA PTX.
  • Useful for having a single thread perform an operation while maintaining warp synchronization.

Args:

  • ​mask (UInt32): The mask to use for the election. Defaults to 0xFFFFFFFF.

Returns:

Bool: True for the elected thread, False for all other threads in the warp.