Lecture 9 - Åbo Akademi
Lecture 9 - Åbo Akademi
Lecture 9 - Åbo Akademi
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NoC in a nutshell<br />
• First NoC research from Philips, 2001<br />
• Circuit-switching<br />
• Could advantage e.g., high-performance computing<br />
• Dedicated circuits => increased bandwidth efficiency<br />
• No routing flexibility => network congestion: problem<br />
• Packet-switching<br />
• NIU (network interface units) make the packets from<br />
intercore data<br />
• Routers and switches connect cores via copper wiring<br />
• Routing algorithms and tables<br />
• Routing: simple logic to save host-chip performance, power<br />
• Host-chip limitations => small, energy-efficient, fast routers needed