Add NCCL H2 collective and P2P mismatch diagnostics - #1256

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lzy-edu wants to merge 6 commits into

flagos-ai:mainfrom

lzy-edu:agent/add-nccl-probe-h2

Commits on Aug 12, 2026

Add CPU-side NCCL H1 probe
lzy-edu
committed
5a83e3f
Add NCCL H2 mismatch detection
lzy-edu
committed
af64031
Fix missing-enter reporting with H2 mismatch
lzy-edu
committed
a5c443d

Commits on Aug 13, 2026

Handle late P2P counterparts after timeout
lzy-edu
committed
5bb0b04
Test P2P sends to multiple destinations
lzy-edu
committed
7f85ed7

Commits on Aug 14, 2026

Optimize P2P tracing candidate matching
lzy-edu
committed
75c3f06