3 ms·

why is IBM moving forward that way

• wmf 1mo ago
  Because ARM is the future.
  • bonzini 1mo ago
    Mostly because big endian is the past.
  • rbanffy 1mo ago
    Because their clients want to deploy Linux AI workloads directly on the mainframe to gain lower latencies and higher troughput and ARM has better library support than s390x. Half of the last two mainframe-dedicated Hot Chips presentations were about the Spyre inference accelerator. Every newer mainframe CPU also has a big inference accelerator built-in, which is accessible to ARM binaries at instruction-level latencies (and has dedicated s390x instructions).
  • _joel 1mo ago
    Sure, don't disagree, RISC-V has 10Gbit nic, 32GB, multi core machines available now. Software slower to get there but catching up quite quickly. Don't discount that too.