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Comment: Re:direct CPU-CPU interconnects; Transputer? (Score 4, Informative) 366

by FCh (#29537091) Attached to: Microsoft Releases Prototype of Research OS "Barrelfish"

Transputers had 4 HW links -- those are probably the easiest part to replicate in current processors.
The difficult part is the threading model: Transputers had their own thread model. Scheduler was hardwired in silicon, together with a couple of dedicated instructions. SW could not tell the difference between a local and a remote communication. Efficient, but not very flexible in terms of OS architecture.

Make sure your code does nothing gracefully.

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