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Question 1

You are optimizing an AI workload that involves multiple GPUs across different nodes in a data center. The application requires both high-bandwidth GPU-to-GPU communication within nodes and efficient communication between nodes.
Which combination of NVIDIA technologies would best support this multi-node, multi-GPU AI workload?

NVLink for both intra-node and inter-node GPU communication.

InfiniBand for both intra-node and inter-node GPU communication.

NVLink for intra-node GPU communication and InfiniBand for inter-node communication.

PCIe for intra-node GPU communication and RoCE for inter-node communication.

Correct Answer: C

Explanation:

For optimal performance in multi-node, multi-GPU AI workloads:

NVLink provides high-speed, low-latency communication between GPUs within the same node.
InfiniBand offers efficient, scalable communication between nodes in a data center. Combining these technologies ensures both intra-node and inter-node communication needs are effectively met.
[Reference:NVIDIA NVLink & NVSwitch: Fastest HPC Data Center Platform, ]

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