Exam NCA-AIIO Topic 1 Question 4 Discussion

Analyzing GPU memory usage with nvidia-smi is the most effective approach to identify performance degradation during inference on a multi-GPU server. NVIDIA's nvidia-smi tool provides real-time insights into GPU utilization, memory usage, and process activity, pinpointing issues like memory overflows, underutilization, or contention-common causes of inference slowdowns. Option A (power supply) is secondary, as power issues typically cause failures, not gradual degradation. Option B (CPU utilization) is relevant but less critical for GPU-bound inference tasks. Option D (training data) affects model quality, not runtime performance. NVIDIA's performance troubleshooting guides recommend nvidia-smi as a primary diagnostic tool for GPU-based workloads.