Qinghua Zhou 7b06a60786 test/ext/ep: make HT test Config env-driven ...

Allow tuning the internode HT test cfg from the environment without
editing the source. Supported variables (all optional):

  MSCCLPP_EP_NSM          (default 152)  num channels / SMs
  MSCCLPP_EP_NVL_SEND     (default 8)
  MSCCLPP_EP_NVL_RECV     (default 256)
  MSCCLPP_EP_RDMA_SEND    (default 16)
  MSCCLPP_EP_RDMA_RECV    (default 128)

The defaults match what we use for 16-node GB200 bench runs (e.g.
NVL_RECV=512 to satisfy the HT combine assert at 16 nodes).

2026-05-11 20:59:12 +00:00

..

ext/ep

test/ext/ep: make HT test Config env-driven

2026-05-11 20:59:12 +00:00