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Fix pinned NCCL tool linking - #76

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nessie993 merged 1 commit into
mainfrom
agent/r50-p2p-nccl-link
Aug 13, 2026
Merged

nessie993 merged 1 commit into
mainfrom
agent/r50-p2p-nccl-link

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Summary

  • derive a build-only unversioned libnccl.so link from the exact r34 package's versioned libnccl.so.2
  • keep runtime linkage pinned to the canonical r34 NCCL library
  • lock the development-link contract in the P2P prerequisite tests

Evidence

  • first cold build failed closed at -lnccl
  • corrected warm build completed in 26.8s
  • exported manifest SHA256: ede7b69919c1346aae01c718a8c09e8546b684c6d92c08a7c0406933b70878e0
  • nvbandwidth SHA256: ba0b486efb1a83ceb535243730fe51fb7104a21a7e3f90dd590b4bed465fb023
  • all_reduce_perf SHA256: 17f2cca118295e4d16d1a1adbe62c6e69b03d188de68f14fc3fa8427b2c74257
  • 98 Python tests; agentbench 5/5; shell/diff checks

No node06 state or GPU workload changed.

@nessie993
nessie993 merged commit 6243195 into main Aug 13, 2026
2 of 3 checks passed
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