vllm

fd44100b - Address review: add push_ar to benchmark and backend logging

Address review: add push_ar to benchmark and backend logging - Add PushAllReduce to benchmark_device_communicators.py for comparing against other allreduce implementations - Add PUSH_AR to _log_all_reduce_backend_selection in cuda_communicator.py for visibility in dispatch logging Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> Signed-off-by: Alexander Matveev <alexm-redhat@dgx-b200-02.mgmt.accl-001.lab.rdu2.dc.redhat.com>