Photonic computing startup Lightmatter has raised $400 million to blow one of modern datacenters’ bottlenecks wide open. The company’s optical interconnect layer allows hundreds of GPUs to work synchronously, streamlining the costly and complex job of training and running AI models. The growth of AI and its correspondingly immense compute requirements have supercharged the datacenter […] © 2024 TechCrunch. All rights reserved. For personal use only.