Google Details Five Generations Of TPU Training Supercomputers


Researchers from Google and University of California, Berkeley published a technical paper titled “Google’s Training Supercomputers from TPU v2 to Ironwood: Architectural Stability, Scale, Resilience, Power Efficiency, and Sustainability Across Five Generations.” The paper summarizes five generations of Google TPUs, from TPU v2 through Ironwood, and examines how the systems evolved int... » read more

All AI Data Center Interconnects Will Be Optical Within 5 Years


I spent several days at OFC (Optical Fiber Communications Conference) 2026 in LA. The crowds were huge and the enthusiasm intense. Long-time attendees noted the shift from telecom to data center AI in just a few years. Nvidia GTC 2026 took place simultaneously in San Jose. OFC and GTC are entangled because data center AI needs optical interconnect to keep compute fed. Optical interconnect... » read more