NCCL Release 2.9.9

This is the NCCL 2.9.9 release notes. For previous NCCL release notes, refer to the NCCL Archives.


NCCL 2.9.9 has been tested with the following:

Fixed Issues

The following issues have been resolved in NCCL 2.9.9:
  • Fixed crash when setting NCCL_MAX_P2P_NCHANNELS.

  • Fixed hang during sendrecv dynamic connection on cubemesh topologies.

  • Fixed compilation with TRACE=1.