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EXISTING SYSTEM

PROPOSED SYSTEM

 EXISTING CONCEPT:-

Processors existing inside a resource can fail

to execute a grid task at any time. When a user existing in a resource’s administrative domain submits a task to the resource, the task is serviced inside that resource along with the grid tasks submitted by grid users.

The performance of a single resource and whole distributed system is highly dependent on the number and processing power of the existing resources and their processors.

PROPOSED CONCEPT:-

In proposed method we model a single grid resource using SRNs and compute mean response time of the resource to grid tasks.

Dependencies among sub-models of the decomposed model are found, and then, fixed-point iteration method is used to solve the interacting sub-models

We proposed approximate performance models for polling systems which can be used to analyze the performance of such systems when the number of nodes and their potential customers are large.

EXISTING TECHNIQUE:-

RMS can fail during servicing the grid tasks

PROPOSED TECHNIQUE:-

SRN (Stochastic Reward Nets) Models

TECHNIQUE DEFINITION:-

Processors existing inside a resource can fail to execute a grid task at any time. Therefore, the availability of a grid resource to service grid tasks can be highly influenced by processor failure.

TECHNIQUE DEFINITION:-

SRN is an extension of Stochastic Petri Nets (SPNs) which has the advantage of specifying and evaluating a real system in a compact and intuitive way.

DRAWBACKS:-

Inside a resource can fail.

Doesn’t not reduce network traffic.

ADVANTAGES:-

Performance, availability and reliability analysis of fault tolerant.

Network traffics are reduced.