Data centers are heaving under the unprecedented computational and storage demands of AI training, which are growing even faster under the barrage from GenAI, amid intense competition between major players. These include Google, Meta, Amazon, Microsoft and OpenAI, the latter two being partially joined at the hip, especially over data centers. There is also the Chinese contingent led by Alibaba and Baidu engaged in similar deployments. This is driving innovation across the whole spectrum of data center technology, as much to contain costs and meet sustainability requirements, as to keep up with escalating demand. Such innovation begins at the chip level where Nvidia and AMD are particularly influential, through to hardware architecture to extract the best performance from multiple clusters…