GPU cluster in cooling data center

GPU cluster in a cooling data center: essential infrastructure for training AI models and high-performance computing.

About this subject

GPU clusters are the heart of modern artificial intelligence systems, enabling parallel processing of thousands of simultaneous mathematical operations. In cooling data centers, these arrays of graphics cards work 24/7 to train models like GPT-4, which requires weeks of uninterrupted computation. Cooling is critical: a single GPU can dissipate up to 400W of heat, and clusters with hundreds of units generate temperatures demanding liquid cooling or precision air conditioning. Companies like NVIDIA, AMD, and Google design specific hardware for this environment, with high-speed interconnects such as NVLink and InfiniBand. In Brazil, data centers in São Paulo and Campinas host clusters for academic research and enterprise applications, including natural language processing and computer vision. Energy efficiency of these clusters is measured in FLOPS per watt, and recent advances in architectures like Hopper and Blackwell aim to reduce consumption. Interestingly, the term 'cluster' originated from distributed computing in the 1990s, but today it is synonymous with AI computing power.

Frequently Asked Questions

How many GPUs does a typical AI cluster have?

It depends on the application. Research clusters may have dozens of GPUs, while supercomputers like Fugaku have thousands. A common example is racks with 8 interconnected NVIDIA A100 GPUs.

What is the difference between air and liquid cooling in data centers?

Air cooling uses fans and air conditioning, simpler and cheaper but less efficient for high heat densities. Liquid cooling uses water or dielectric fluids to absorb heat directly from components, allowing higher density and energy savings.

Does Brazil have data centers with GPU clusters?

Yes, companies like Ascenty, Equinix, and ODATA operate data centers in Brazil with GPU clusters for AI clients, video processing, and scientific simulations, mainly in São Paulo and Campinas.