Fundamental tradeoff

• Hive researcher quote:
• "
  I'm have to work to convince these shared memory hardware guys to add messaging passing hardware".
  • Why do we need message passing?
    • Message model allows fault - containment
    • Catch faults at message boundary
    • How to build a fault containment shared memory model?
      • load/store boundary?
      • Hive punts uses messaging for containment
• Same problem with the E10K!
  • Fault containment = cluster arch.

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