Don't super computers have shared direct memory access of all the memory for all... | Hacker News

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biohacker42 on Dec 8, 2008 | parent | context | favorite | on: Analysis: more than 16 cores may well be pointless

Don't super computers have shared direct memory access of all the memory for all CPUs?

Perhaps it is time for home desktops to adopt the super computer architecture!

biohacker42 on Dec 9, 2008 [–]

Alright I'm not a hardware engineer I don't even like assembly.

Can somebody explain how mainframe DMA is different from the DMA in your home PC?

I know mainframes have more then 16 CPUs. The memory problem we're talking about here does not apply to them, right?

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