When One GPU Isn’t Enough: Serving GLM-5.3 Across Two NVIDIA DGX Stations with vLLM

The NVIDIA GLM-5.3 NVFP4 model has 753 billion parameters with 40 billion activated per token. Two NVIDIA DGX Stations connected over ConnectX-8 RDMA serve the model using tensor parallelism with TP=2. Station A returns the answer through one OpenAI-compatible API.