[Arnold] [MtoA] How to check if your processor supports SSE4.2


This blog post is for Google search to find; I’ve already blogged about the SSE4.2 requirement elsewhere.

If your processor does not support SSE4.2, the Arnold won’t run on your computer. MtoA will either fail to load, or you’ll get a crash whenever you try to render.

To check whether an older machine supports SSE4.2, here’s a few suggestions:

  • Google your processor and “SSE”
    cpu-world is pretty reliable, but I have seen one or two cases where the info was wrong, and SSE4.2 wasn’t really supported by a processor.
  • Windows: Download and run coreinfo -f
  • OSX: Run sysctl -a | grep machdep.cpu.features
  • Linux: Check /proc/cpuinfo

A note about coreinfo:

  • If you see an asterisk (*), then SSE4.2 is supported.
    SSE4.2          *       Supports Streaming SIMD Extensions 4.2
  • If you see a dash (-), then SSE4.2 is not supported.
    SSE4.2          -       Supports Streaming SIMD Extensions 4.2

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