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Application of butterfly Clos-network in network-on-chip.

Liu H, Xie L, Liu J, Ding L - ScientificWorldJournal (2014)

Bottom Line: During the routing period, other nondestination nodes can be used as middle stages to transfer data packets to complete the routing mission.Therefore, this topology has the characteristic of multistage.Simulation analyses show that BFC inherits the rich path diversity of Clos network, and it has a better performance than butterfly network in throughput and delay in a quite congested traffic pattern.

View Article: PubMed Central - PubMed

Affiliation: Jiangxi University of Science and Technology, Ganzhou 341000, China.

ABSTRACT
This paper studied the topology of NoC (Network-on-Chip). By combining the characteristics of the Clos network and butterfly network, a new topology named BFC (Butterfly Clos-network) network was proposed. This topology integrates several modules, which belongs to the same layer but different dimensions, into a new module. In the BFC network, a bidirectional link is used to complete information exchange, instead of information exchange between different layers in the original network. During the routing period, other nondestination nodes can be used as middle stages to transfer data packets to complete the routing mission. Therefore, this topology has the characteristic of multistage. Simulation analyses show that BFC inherits the rich path diversity of Clos network, and it has a better performance than butterfly network in throughput and delay in a quite congested traffic pattern.

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Related in: MedlinePlus

Performance comparison of two hot spots traffic models.
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Related In: Results  -  Collection


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fig15: Performance comparison of two hot spots traffic models.

Mentions: Figure 15 shows the performance comparison in the hot spots flow network corresponding to end-to-end delay and throughput of the butterfly network and BFC network. Hot spots traffic patterns are the common processing mode to investigate the ability of commonly used network. In this mode, the weakness of low processing capabilities with congestion of the butterfly network is exposed. For end-to-end delay as shown in Figure 15(a), the butterfly network almost reaches 0.17 from the injection rate when it begins to increase, while BFC starts up from the injection rate around 0.3. Throughput performance and end-to-end delay are similar as shown in Figure 15(b), and the butterfly network saturation throughput is much lower than the BFC network.


Application of butterfly Clos-network in network-on-chip.

Liu H, Xie L, Liu J, Ding L - ScientificWorldJournal (2014)

Performance comparison of two hot spots traffic models.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC3926393&req=5

fig15: Performance comparison of two hot spots traffic models.
Mentions: Figure 15 shows the performance comparison in the hot spots flow network corresponding to end-to-end delay and throughput of the butterfly network and BFC network. Hot spots traffic patterns are the common processing mode to investigate the ability of commonly used network. In this mode, the weakness of low processing capabilities with congestion of the butterfly network is exposed. For end-to-end delay as shown in Figure 15(a), the butterfly network almost reaches 0.17 from the injection rate when it begins to increase, while BFC starts up from the injection rate around 0.3. Throughput performance and end-to-end delay are similar as shown in Figure 15(b), and the butterfly network saturation throughput is much lower than the BFC network.

Bottom Line: During the routing period, other nondestination nodes can be used as middle stages to transfer data packets to complete the routing mission.Therefore, this topology has the characteristic of multistage.Simulation analyses show that BFC inherits the rich path diversity of Clos network, and it has a better performance than butterfly network in throughput and delay in a quite congested traffic pattern.

View Article: PubMed Central - PubMed

Affiliation: Jiangxi University of Science and Technology, Ganzhou 341000, China.

ABSTRACT
This paper studied the topology of NoC (Network-on-Chip). By combining the characteristics of the Clos network and butterfly network, a new topology named BFC (Butterfly Clos-network) network was proposed. This topology integrates several modules, which belongs to the same layer but different dimensions, into a new module. In the BFC network, a bidirectional link is used to complete information exchange, instead of information exchange between different layers in the original network. During the routing period, other nondestination nodes can be used as middle stages to transfer data packets to complete the routing mission. Therefore, this topology has the characteristic of multistage. Simulation analyses show that BFC inherits the rich path diversity of Clos network, and it has a better performance than butterfly network in throughput and delay in a quite congested traffic pattern.

Show MeSH
Related in: MedlinePlus