Flow Networking in Grid Simulations - Grid Computing: Infrastructure, Service, and Applications - page 384

TABLE 15.1
Summary of Changes between GridSim Packet and Flow Implementations
Component

Packet Model Flow Model

GridSim network type GridSimTags.

NET_PACKET_LEVEL

GridSimTags.
NET_FLOW_LEVEL

Input/output Input/Output extends

Sim_entity

FlowInput/FlowOutput
extends Sim_entity
implements NetIO

Packet NetPacket extends Packet FlowPacket extends Packet

Link SimpleLink extends Link FlowLink extends Link

Router RIPRouter/FloodingRouter/

RateControlledRouter
extends Router

FlowRouter extends Router

Scheduler SCFQScheduler/

FIFOScheduler/
RateControlledScheduler
implements PacketScheduler

N/A

Event i lter N/A FilterFlow

Package gridsim.net gridsim.net.l ow

responsibility in the l ow model. A new class, FlowRouter, has been added,
which enables many-to-many ( m:m ) connections from GridSim entities
but performs no actual scheduling itself. As such, there is no equivalent to
PacketScheduler needed for the l ow model.
Finally, the FlowInput holds the FlowPacket for the appropriate
duration, based on Equation 15.2 and an appropriate bandwidth sharing

F.I
F.O

F. I
F.O

NetUser
1

Resource
5

FlowLink FlowLink

FlowRouter
3

FlowRouter
4

FlowLink

FlowLink FlowLink

F.I
F.O

F. I
F.O

NetUser
2

Resource
6

FIGURE 15.4 GridSim l ow networking architecture.