[corey-derochie-amd]

2.24.3-1
Network user buffer support for collectives

• Leverage user buffer registration to achieve zero-copy
  inter-node communications for Ring, NVLS and Collnet

Add RAS subsystem

• Create a RAS thread keeping track of all NCCL communicators.
• Add a ncclras tool contacting the RAS thread and getting a
  report.

Add fp8 support

• Add support for e5m2 and e4m3 8-bit floating point operations.
• Use Tree/PAT algorithms when possible for better numerical
  stability.

Add NIC fusion

• Add a NET API to ask the network plugin to fuse a set of
  interfaces together.
• Fuse multiple NICs under the same PCI switch as a single,
  larger NIC.

Socket connection failure retry

• Retry in case of socket connection failure (unreachable host)
• Avoid "Software caused connection abort" errors on retries

QP connection failure retry

• Retry in case of IB QP connection failure during ibv_modify_qp.

NET API improvements

• Allow plugins to force a flush in case data and completion
  ordering is not guaranteed.
• Indicate when completion is not needed (e.g. for the LL128
  protocol), allowing plugins to skip generating a completion.
• Allow for full offload of allgather operations when using one
  GPU per node.

NCCL_ALGO/NCCL_PROTO strict enforcement

• Extend NCCL_ALGO/NCCL_PROTO syntax to be able to specify
  ALGO/PROTO filters for each collective operation.
• Strictly enforce the ALGO/PROTO filters, no longer fall back
  on the ring algorithm when the filtering leaves no option and
  error out instead.

Enable CUMEM host allocations

• Use cumem functions for host memory allocation by default.

Improved profiler plugin API

• Avoid dependencies with NCCL includes.
• Add information on whether the buffer is registered or not

Adjust PAT tuning

• Improve transition between PAT and ring at scale.

Fix hangs when running with different CPU architectures

• Detect when we use a mix of GPU architectures
• Ensure Algo/Proto decisions are made based on that unified
  state.

Fix FD leak in UDS

• Fix a leak when mapping buffers intra-node with cumem IPCs.

Fix crash when mixing buffer registration and graph buffer registration.

• Separate local and graph registration to avoid crashes when we free
  buffers.

Fix user buffer registration with dmabuf

• Make ncclSend/ncclRecv communication with buffer registration functional
  on network plugins relying on dmabuf for buffer registration.

Fix crash in IB code caused by uninitialized fields.

Fix non-blocking ncclSend/ncclRecv

• Fix case where ncclSend/ncclRecv would return ncclSuccess in non-blocking
  mode even though the operation was not enqueued onto the stream.
• Issue P2P in non-blocking mode NVIDIA/nccl#1495

Various compiler tweaks and fixes

• PR unlock mutex on failure NVIDIA/nccl#758

Fix typo in ncclTopoPrintGraph

• Issue Topology printing bug in ncclTopoPrintGraph in NCCL 2.23? NVIDIA/nccl#1468