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AnilAltinayandgVisor bot eb11acc757 Add debugging output when only one GPU is detected in CUDA tests.
When cudaGetDeviceCount returns 1, print environment variables
(CUDA_VISIBLE_DEVICES, NVIDIA_VISIBLE_DEVICES), list /dev/nvidia*,
and run nvidia-smi -L.
Hopefully this helps diagnose issues where not all expected GPUs are visible
to the CUDA application. Right now I cannot reproduce the failure locally.

PiperOrigin-RevId: 912043151
2026-05-07 10:51:25 -07:00
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