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A tree topology, or star-bus topology, is a hybrid network topology in which star networks are interconnected via bus networks. [ 1 ] [ 2 ] Tree networks are hierarchical, and each node can have an arbitrary number of child nodes.
A tree topology (a.k.a. hierarchical topology) can be viewed as a collection of star networks arranged in a hierarchy. This tree structure has individual peripheral nodes (e.g. leaves) which are required to transmit to and receive from one other node only and are not required to act as repeaters or regenerators. Unlike the star network, the ...
Mercury Computer Systems applied a variant of the fat tree topology—the hypertree network—to their multicomputers. [citation needed] In this architecture, 2 to 360 compute nodes are arranged in a circuit-switched fat tree network. [citation needed] Each node has local memory that can be mapped by any other node.
For ring topology with n nodes two links should be broken to bisect the network, so bisection bandwidth becomes bandwidth of two links. Bisection of a ring network. For tree topology with n nodes can be bisected at the root by breaking one link, so bisection bandwidth is one link bandwidth. Bisection of a tree network
In graph theory, a tree is an undirected graph in which any two vertices are connected by exactly one path, or equivalently a connected acyclic undirected graph. [1] A forest is an undirected graph in which any two vertices are connected by at most one path, or equivalently an acyclic undirected graph, or equivalently a disjoint union of trees.
Fat tree DCN employs commodity network switches based architecture using Clos topology. [3] The network elements in fat tree topology also follows hierarchical organization of network switches in access, aggregate, and core layers. However, the number of network switches is much larger than the three-tier DCN.
Trees in the graph-theoretic sense may be viewed as topological or metric spaces by representing each edge as a unit interval, but should instead be categorized into Category:Trees (graph theory). For a different way of generalizing graph-theoretic trees to more general mathematical structures, see also Category:Trees (set theory)
For each topology, BME defines the tree length (sum of branch lengths) to be a particular weighted sum of the distances in the distance matrix, with the weights depending on the topology. The BME optimal topology is the one which minimizes this tree length.