The CS-2 is a system solution that consists of innovations across three dimensions: a) the second generation Cerebras Wafer Scale Engine (WSE-2) — the industry’s largest and only multi-trilliontransistor processor, b) the Cerebras System and c) the Cerebras software platform. 

The CS-2 is 26-inches (15 rack units) tall and fits in one-third of a standard datacenter rack. It houses the Cerebras Wafer Scale Engine and feeds the 850,000 AI-optimized compute cores and 40 Gigabytes of high-speed, on-wafer memory with 1.2 terabits per second of data. This combination of enormous input/output bandwidth — 12 x 100 Gigabit Ethernet lanes – and 40 Gigabytes of fast, on-chip memory enables the CS-2 to deliver more calculations per unit time than any machine ever built. And since all the computation and communication remains on-chip, where extraordinary power efficiency is to be had, the CS-2 consumes only a small fraction of the power and space of alternative solutions. Powering and cooling such a large chip requires fundamental technology innovations. The custom power delivery and cooling technology inside the CS-2 keeps the chip running at full performance at a temperature well below the operating temperature of traditional processors.  

The CS-2 is able to achieve best-in-industry performance through innovation and technical tradeoffs across software, chip design and system hardware. All aspects of the solution work in concert to deliver unprecedented AI performance and ease-of-use. The second generation Wafer Scale Engine, the CS-2 system, and the Cerebras software platform together comprise a complete solution to high-performance deep learning compute. Deploying the solution requires no changes to existing workflows or to datacenter operations.  

With this breakthrough in performance, the Cerebras CS-2 eliminates the primary impediment to the advancement of artificial intelligence, reducing the time it takes to train models from months to minutes and from weeks to seconds, allowing researchers to be vastly more productive. In so doing the CS-2 reduces the cost of curiosity, accelerating the arrival of the new ideas and techniques that will usher forth tomorrow’s AI. 

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