
Unlocking Ultra-Fast GPU Communication with NVIDIA NVLink & NVLink Switch
NVIDIA NVLink and NVLink Switch are essential for modern AI and high-performance computing (HPC) workloads, overcoming traditional PCIe limitations by offering ultra-fast GPU communication. NVLink is a high-bandwidth, low-latency GPU-to-GPU interconnect that allows GPUs to communicate directly and create a unified memory space within a server. The NVLink Switch extends this connectivity, enabling all-to-all GPU communication across an entire rack and allowing clusters to scale seamlessly to hundreds of GPUs. This combination delivers massive bandwidth (up to 1.8 TB/s) and low latency, crucial for training large AI models and complex HPC simulations. The NVIDIA H200 GPU leverages advanced NVLink, providing up to 1.8 TB/s bandwidth and aggregating up to 564 GB of HBM3e memory across connected devices, enhancing memory capacity and communication speed. Together, they transform GPU racks into unified supercomputers, vital for next-generation AI infrastructure.
12 minute read
•Energy and Utilities