[Issue]: enable NCCL_GRAPH_MIXING_SUPPORT will launch a large number of stream in cudagraph #1901
Description
How is this issue impacting you?
Lower performance than expected
Share Your Debug Logs
No response
Steps to Reproduce the Issue
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NCCL Version
2.28.3+cu129
Your platform details
I find when enable NCCL_GRAPH_MIXING_SUPPORT, it will launch multiple stream in cuda graph:
when I turn off, it seems reasonable:
Error Message & Behavior
No response