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Architects' Tech Alliance
Architects' Tech Alliance
Jul 19, 2025 · Artificial Intelligence

Best GPU Cluster Network for Large‑Scale AI: NVLink, InfiniBand, RoCE & DDC

This article compares the main networking technologies used in large‑scale AI GPU clusters—NVLink, InfiniBand, RoCE Ethernet, and the emerging DDC full‑schedule fabric—examining latency, lossless transmission, congestion control, cost, power and scalability to help engineers choose the optimal solution for training massive language models.

AI trainingDDCGPU networking
0 likes · 15 min read
Best GPU Cluster Network for Large‑Scale AI: NVLink, InfiniBand, RoCE & DDC
Architects' Tech Alliance
Architects' Tech Alliance
Jun 29, 2025 · Artificial Intelligence

Scale-Up vs Scale-Out: Balancing Performance and Flexibility in AI Infrastructure

This article explains the technical definitions, core differences, and practical use cases of Scale‑Up and Scale‑Out networking in AI systems, highlighting how they impact latency, bandwidth, and cost, and illustrates their combined application through NVIDIA's NVL72 supernode case study.

AI InfrastructureGPU networkingHigh‑performance computing
0 likes · 14 min read
Scale-Up vs Scale-Out: Balancing Performance and Flexibility in AI Infrastructure
Architects' Tech Alliance
Architects' Tech Alliance
Dec 24, 2023 · Artificial Intelligence

Overview of Popular GPU/TPU Cluster Networking Technologies for LLM Training

This article examines the main GPU/TPU cluster networking options—including NVLink, InfiniBand, RoCE Ethernet Fabric, and DDC full‑schedule networks—explaining their latency, loss‑less transmission, congestion control, cost, scalability, and suitability for large‑scale LLM training workloads.

GPU networkingInfiniBandLLM training
0 likes · 18 min read
Overview of Popular GPU/TPU Cluster Networking Technologies for LLM Training