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Exam NCA-AIIO Topic 1 Question 21 Discussion

Actual exam question for NVIDIA's NCA-AIIO exam
Question #: 21
Topic #: 1
You are working on a high-performance AI workload that requires the deployment of deep learning models on a multi-GPU cluster. The workload needs to scale across multiple nodes efficiently while maintaining high throughput and low latency. However, during the deployment, you notice that the GPU utilization is uneven across the nodes, leading to performance bottlenecks. Which of the following strategies would be the most effective in addressing the uneven GPU utilization in this multi-node AI deployment?

Suggested Answer: B Vote an answer

Uneven GPU utilization across nodes in a multi-GPU cluster often results from poor task-to-GPU mapping, where some nodes are overloaded while others are underutilized. Enabling GPU affinity in the job scheduler (e.g., Slurm, Kubernetes with NVIDIA GPU Operator) ensures that tasks are pinned to specific GPUs, optimizing resource allocation and balancing utilization. This approach leverages NVIDIA's infrastructure tools to enforce locality, reducing communication overhead (via NVLink or InfiniBand) and ensuring each GPU is assigned an appropriate workload share, improving throughput and latency.
A CPU-based load balancer (Option A) is less effective for GPU-specific tasks, as it lacks awareness of GPU states. Increasing batch size (Option C) might improve throughput for individual GPUs but doesn't address inter-node imbalances and could increase latency. Mixed precision training (Option D) enhances performance per GPU but doesn't solve distribution issues. GPU affinity, supported by NVIDIA's scheduling frameworks, directly tackles the root cause.

by Dawn at Nov 29, 2025, 02:28 AM

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Here are all the actual test exam dumps for IT exams. Most people prepare for the actual exams with our test dumps to pass their exams. So it's critical to choose and actual test pdf to succeed.

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