Which is a distinctive feature of GPUs in Dedicated AI Clusters used for generative AI tasks?

OCI Dedicated AI Clusters are designed as a single-tenant, private supercluster for a customer's exclusive use. The defining characteristic is the complete isolation of the compute resources. This means the NVIDIA GPUs, the high-performance RDMA cluster network, and storage are not shared with any other customers. This isolation is crucial for generative AI workloads as it guarantees predictable, bare-metal performance without the "noisy neighbor" effect common in multi-tenant environments. It also provides a higher level of security for sensitive training data and proprietary models.

A. This describes a multi-tenant architecture, which is the opposite of a "Dedicated" cluster designed for single-tenant, exclusive use.
C. GPUs are specialized processors for massively parallel computation, which is their primary function in AI training, not data storage.
D. Dedicated AI Clusters use a private, ultra-low-latency RDMA over Converged Ethernet (RoCE) network, not the public internet, for inter-GPU communication.

1. Oracle Cloud Infrastructure Documentation, "Generative AI - Dedicated AI Clusters": "Dedicated AI clusters are for your exclusive use. You can create a dedicated AI cluster to fine-tune custom models or to host dedicated endpoints for your custom models." This statement directly confirms the single-tenant, isolated nature of the clusters. (Source: Oracle Cloud Infrastructure Official Documentation, Generative AI section).

2. Oracle Cloud Infrastructure Documentation, "AI Infrastructure - Overview": "OCI Supercluster is built using OCI Compute bare metal instances... The backend network is a high-performance RoCE v2 cluster network... This architecture provides a flat, non-blocking network at a massive scale, which is ideal for parallel workloads." This reference highlights the private, high-performance networking fabric, refuting the use of the public internet (Option D). (Source: Oracle Cloud Infrastructure Official Documentation, AI and Machine Learning -> AI Infrastructure section).

3. Oracle News, "Oracle Announces New OCI Supercluster to Bring the Power of AI to More Organizations" (May 23, 2023): "With OCI Supercluster, OCI is extending its AI infrastructure to give customers a dedicated, managed, and easy-to-deploy AI supercomputer for their most demanding AI workloads." The term "dedicated" is used to emphasize the single-customer, isolated environment. (Source: Oracle Official Press Release).