fix(pathfinder): find cuobjdump in the nvidia/cu13/bin wheel layout

[brandon-b-miller]

Closes #2738

[rwgk]

This PR made me wonder, are we obviously missing any other existing wheels? I asked codex to look systematically on PyPI. It found:

---

Among the existing SITE_PACKAGES_BINDIRS entries, no — cuobjdump is the only missing _CUDA13_BIN case. Brandon’s production change is correct.

I inspected the current stable CUDA 13 component wheels for Linux x86-64, Linux ARM64, and Windows x86-64; their SHA-256 hashes matched PyPI metadata:

• nvidia-cuda-nvcc==13.3.73: nvcc, bin2c, fatbinary, nvlink
• nvidia-cuda-nvdisasm==13.3.73: nvdisasm
• nvidia-cuda-cuobjdump==13.3.73: cuobjdump only
• nvidia-cuda-sanitizer-api==13.3.75: compute-sanitizer

Those seven utilities live under nvidia/cu13/bin, exactly matching the new test. nvprune, cuda-gdb, cuda-gdbserver, and nvprof are absent from the relevant PyPI wheels. The Nsight commands have separate configured namespaces and are not part of the cuda-toolkit==13.3.1 wheel closure.

One adjacent finding: ptxas is present under both the CUDA 13 and legacy NVCC wheel layouts, but it is not supported by SITE_PACKAGES_BINDIRS at all. That is a separate API-expansion question, rather than another missing _CUDA13_BIN tuple. It also makes the test docstring at test_find_nvidia_binaries.py slightly too broad: “Every supported utility shipped…” would be literally accurate.

---

I'll make another PR to capture this finding.

[github-actions]

Doc Preview CI
Preview removed because the pull request was closed or merged.