Lecture 9 - Åbo Akademi
Lecture 9 - Åbo Akademi Lecture 9 - Åbo Akademi
Nostrum • Developed at KTH in Stockholm • Direct network with a 2-D mesh topology • SAF switching with hot potato (or deflective) routing • Support for • switch/router load distribution • guaranteed bandwidth (GB) • multicasting • GB is realized using looped containers • implemented by VCs using a TDM mechanism • container is a special type of packet which loops around VC • multicast: simply have container loop around on VC having recipients • Switch load distribution requires each switch to indicate its current load by sending a stress value to its neighbors
Octagon • Developed by STMicroelectronics • direct network with an octagonal topology • 8 nodes and 12 bidirectional links • Any node can reach any other node with a max of 2 hops • Can operate in packet switched or circuit switched mode • Nodes route a packet in packet switched mode according to its destination field • node calculates a relative address and then packet is routed either left, right, across, or into the node • Can be scaled if more than 8 nodes are required • Spidergon
- Page 9 and 10: Some driving forces • Technical I
- Page 11: NoC illustration
- Page 14 and 15: OCP standard for on-chip communicat
- Page 16 and 17: OCP Characteristics • IP Core •
- Page 18 and 19: Flexibility of OCP • Several usef
- Page 20 and 21: Some fundamental OCP concepts: Addr
- Page 22 and 23: Some fundamental OCP concepts: In-b
- Page 24 and 25: Some fundamental OCP concepts: Side
- Page 26 and 27: Introduction • Network-on-chip (N
- Page 28 and 29: Introduction • ISO/OSI network pr
- Page 30 and 31: NoC Topology • Most direct networ
- Page 32 and 33: NoC Topology • Folding torus topo
- Page 34 and 35: NoC Topology • Indirect Topologie
- Page 36 and 37: NoC Topology • (m, n, r) symmetri
- Page 38 and 39: NoC Topology • Irregular or ad ho
- Page 40 and 41: Switching strategies • Two main m
- Page 42 and 43: Switching strategies • Allocating
- Page 44 and 45: Switching strategies • VCT (virtu
- Page 46 and 47: Routing algorithms • Static and d
- Page 48 and 49: Routing algorithms • Minimal and
- Page 50 and 51: Routing algorithms • Routing algo
- Page 52 and 53: ACK/NACK flow control scheme • wh
- Page 54 and 55: Clocking schemes • Fully synchron
- Page 56 and 57: NoC Architectures examples
- Page 58 and 59: HERMES • Developed at the Faculda
- Page 62 and 63: QNoC • Developed at Technion in I
- Page 64 and 65: SPIN • Scalable programmable inte
- Page 66 and 67: Emerging NoC paradigms Overall goal
- Page 68 and 69: Novel Interconnect Paradigms for Mu
- Page 70 and 71: Motivation • Increasingly harder
- Page 72 and 73: Emerging Alternatives • Optical I
- Page 74 and 75: Optical Interconnects • Board-to-
- Page 76 and 77: Optical Interconnects • Waveguide
- Page 78 and 79: Optical Interconnects • OIs have
- Page 80 and 81: Optical Interconnects: Open Problem
- Page 82 and 83: RF/Wireless Interconnects • Micro
- Page 84 and 85: RF/Wireless Interconnects • Paths
- Page 86 and 87: RF/Wireless Interconnects: Open Pro
- Page 88 and 89: CNT Interconnects • Carbon nanotu
- Page 90 and 91: Multi-Wall Carbon Nanotubes (MWCNT)
- Page 94 and 95: Conceptual transmitter and receiver
- Page 98 and 99: 3D and NoCs • 3D stacking technol
Nostrum<br />
• Developed at KTH in Stockholm<br />
• Direct network with a 2-D mesh topology<br />
• SAF switching with hot potato (or deflective) routing<br />
• Support for<br />
• switch/router load distribution<br />
• guaranteed bandwidth (GB)<br />
• multicasting<br />
• GB is realized using looped containers<br />
• implemented by VCs using a TDM mechanism<br />
• container is a special type of packet which loops around VC<br />
• multicast: simply have container loop around on VC having recipients<br />
• Switch load distribution requires each switch to indicate its<br />
current load by sending a stress value to its neighbors
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