A Deep Dive on CoreWeave Innovations | CoreWeave Blog

What this post added

This post introduces Valvey, a patent-pending programmable per-rack liquid-cooling valve assembly that transforms liquid cooling into a software-defined control surface, enabling per-rack isolation and faster failure containment. It also details Racky, a unified rack manager that aggregates sensors and provides a standardized, software-addressable control surface for each rack, working in concert with Valvey and the Rack LifeCycle Controller. The deployment of the liquid-cooled NVIDIA Spectrum-X SN6600 Ethernet Switch is highlighted as a key component for stitching NVL72 racks into a unified cluster, with tight integration of power and cooling management around the switch to maintain peak performance. The post also elaborates on the multi-rail, multi-plane networking fabric supporting both InfiniBand and Spectrum-X Ethernet with RDMA over Converged Ethernet (RoCE), detailing the use of NVIDIA ConnectX-9 SuperNICs for high-bandwidth, low-latency connectivity.