Communicator

The Communicator class and its methods, organized by lifecycle stage and operation kind:

• Communicator Class — the class itself, its constructor, and per-instance properties for identity and device-API capability.

• Creation and Lifecycle Methods — creating, splitting, growing, and tearing down communicators.

• Collective Communication Methods — collective communication methods (allreduce, broadcast, gather, …).

• Point-to-Point and Signal Methods — point-to-point and signal methods (send / recv / signal / wait_signal / put_signal).

• Memory Registration Methods — buffer and window registration for zero-copy and RMA.

• Device Communicator Setup — host-side bootstrap of a device communicator.

• Status and Utility Methods — error queries and resource cleanup.

• Communicator Class
  • Communicator
  • Properties
• Creation and Lifecycle Methods
  • Construction
  • Bootstrap identifier
  • Splitting and growing
  • Teardown
  • Pause and resume
  • Flag enums
• Collective Communication Methods
  • allreduce
  • broadcast
  • reduce
  • allgather
  • reduce_scatter
  • alltoall
  • gather
  • scatter
  • create_pre_mul_sum
• Point-to-Point and Signal Methods
  • send
  • recv
  • signal
  • wait_signal
  • put_signal
  • WaitSignalDesc
• Memory Registration Methods
  • register_buffer
  • register_window
  • WindowFlag
• Device Communicator Setup
  • create_dev_comm
  • GIN type enums
• Status and Utility Methods
  • close_all_resources
  • get_last_error
  • get_async_error
  • get_mem_stat
  • NcclCommMemStat
  • get_error_string