Lionel M. Ni, Wenjian Qiao, and Mingyao Yang. Switches and Switch Interconnects. Home/Search Document Details and Download
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Deadlock Avoidance for Wormhole Based Switches - Theiss, Lysne (2000) (Correct)
....new deadlocks, andf urther global reasoning will not be necessary. 1 Introduction Wormh8k routing (WHR) h, recently beenbrough t into new applications,such ashk h speed LANs and SANs (i.e. Autonet [1] Myrinet [2] and Servernet [3] andh as been proposed as th e internal fabric of switch es [4,5]. Th e latter is interesting forhk h ly scalable switch es. One could consider using a k ary n cube [6] as th internal topologywhz building such a switch ,butth result will h ve an unfortunate property. Unlike a simple crossbar router ,th WHR switch may block,thU is,a packet may h ve to wait for ....
....h ve di#erent source and destination ports. Using oth# internal topologies will generally not ch nge th# situation. Th problem addressed is th t of new deadlocks appearingwhfi crossbar routers are exch anged with blocking switcht in a given configuration.Thfi problem is previously mentioned in [5] whx e it isemph sizedth t nonblocking switch esh,k preserve inter switch deadlock freedom,whUU blocking switch es are goodwh7 only intra switch deadlock freedom is required. In [7] h wever, Lysne argues th t if blocking switcht are used,reconsidering th structure of th switch internal ....
Lionel M. Ni, Wenjian Qiao, and Mingyao Yang. Switches and Switch Interconnects.
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