Exam NCP-AII Topic 1 Question 294 Discussion

Actual exam question for NVIDIA's NCP-AII exam
Question #: 294
Topic #: 1

You are deploying a new A1 inference service using Triton Inference Server on a multi-GPU system. After deploying the models, you observe that only one GPU is being utilized, even though the models are configured to use multiple GPUs. What could be the possible causes for this?

A. The model configuration file does not specify the 'instance_group' parameter correctly to utilize multiple GPUs. B. The Triton Inference Server is not configured to enable CUDA Multi-Process Service (MPS). C. Insufficient CPU cores are available for the Triton Inference Server, limiting its ability to spawn multiple inference processes. D. The models are not optimized for multi-GPU inference, resulting in a single GPU bottleneck. E. The GPUs are not of the same type and Triton cannot properly schedule across them.

Suggested Answer: A,B Vote an answer

The 'instance_group' parameter in the model configuration dictates how Triton distributes the model across GPUs. Without proper configuration, it may default to a single GPIJ. CUDA MPS allows multiple CUDA applications (in this case, Triton inference processes) to share a single GPU, improving utilization. Insufficient CPU cores or non-optimized models could limit performance, but wouldn't necessarily restrict usage to a single GPIJ. While dissimilar GPIJs can affect performance, Triton will attempt to schedule across them if configured correctly.

by Rachel at Aug 17, 2025, 08:42 AM

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