Static & dynamic Interconnection networks

Static interconnection.       Dynamic
     Network.                          Interconnection
                                                  Network

The static                            In dynamic             Interconnection               interconnection.       network is a type of        network connectio

network that provides    between nodes are

the fixed connection        established as per 

between the nodes.           requirement.

Static Interconnection     D. Interconnectio 

networks are hard to       networks are easy

configure & are                 to configure & are

unchangeable.                    changeable.

This networks is also      This networks is

called as Inter-                 also called as 

connection network.       indirect inter-

                                            connection network

Each nodes pairs              Path can be 

may not have a                 established b/w 

direct connection             any pair of nodes

for communication.         for communication

Static networks are          d. networks are

used for fixed                    often used in 

connections among         should memory

subsystems of a                multiprocessor.

centralized system

or multiple computing

nodes of a distributed

system.

Useful where                     For multipurpose

communications              or general purpose

patternsare predict-        application, we 

able or implemented       need to use 

with static connection.    dynamic connect-

                                             ions which can

                                             implement all 

                                             communication 

                                             patterns based on

                                             program demands.

Cheap as compared         Costly die to use of

to dynamic inter-              wires, switches,

connection network.        arbiters & 

                                              connectors.

Ex:- linear array, ring       Ex:- digital bus,

tree, star, fattree,               multistage 

Barrel sniffer, k-ary,         networks, crossbar

mesh, hypercubes.             network.