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There have certainly been research operating systems for large cache-coherent multiprocessors. For example, IBM's K42 and ETH Zürich's Barrelfish. Both had been
by Findecanor 1y ago
There have certainly been research operating systems for large cache-coherent multiprocessors. For example, IBM's K42 and ETH Zürich's Barrelfish. Both had been designed to separate the kernel state at each core from the others' by using message passing between cores instead of shared data structures.