Semiconductor Engineering: Choosing Between CCIX and CXL

Kurt Shuler, vice president of marketing at Arteris said, “When CCIX first came out, there was a lot of discussion about doing larger-scale, symmetric cache-coherent systems. But as you add in die or separate chips, and you have to increase memories and caches — and data for what’s going on in the different die, and locally storing that — there’s an architectural line where it doesn’t make much sense anymore. Are you actually losing more than you’re gaining? It’s really, really hard for architects to figure out where that hump is. Even if you have 20 years of experience as a cache-coherent architect, you can’t figure this out anymore in your head or by using Excel. That doesn’t work with CCIX and CXL”.