IBM’s next-gen mainframe chip is the first to run Arm and Z workloads on the same cores

IBM is announcing today at the annual Hot Chips conference what may be the most consequential change to mainframe architecture in decades: a processor whose cores can natively execute both IBM's own instruction set and Arm's — switching between the two in nanoseconds.The chip, which will power the next generation of IBM Z and LinuxONE systems, is the first dual-architecture mainframe processor ever built. It is designed to let enterprises run the vast and fast-growing ecosystem of Arm-native Linux software — including the AI frameworks that increasingly define modern infrastructure — directly alongside the z/OS transaction-processing workloads that anchor the world's banks, insurers, and governments."As technology enthusiasts on both sides, we're really excited about being what I would con…