Explain non-pre-emptive algorithms, Computer Engineering

Assignment Help:

Explain non-pre-emptive algorithms?  

Non preemptive algorithms: In this algorithm a job is provided to CPU for execution as long as the job is non-completed the CPU cannot be provided to other processes.

There are three kinds of non preemptive algorithms.

(i) First-come-first-serve (FCFS): This is simplest CPU scheduling algorithm. Along with this scheme, the process which requests the CPU at first is provided to the CPU at first. The implementation of First Come First Serve is easily managed through with a FIFO queue.

(ii) Shortest-job-first (SJF): It is also termed as SPN (shortest process next). In this algorithm the burst times of all the jobs that are waiting in the queue are compared. The job that is containing the least CPU execution time will be provided to the processor at first. In such turnaround time and waiting times are least. It also suffers along with starvation. Indefinite waiting time is termed as starvation. This is complex than FCFS.

(iii) Priority: In this method every job is related with CPU execution time, arrival time and the priority. Here the job that is containing the higher priority will be specified to the execution at first. It also suffers with starvation. And through using aging technique starvation effect may be decreased.


Related Discussions:- Explain non-pre-emptive algorithms

Existential construction - artificial intelligence, The English existential...

The English existential construction involves so-called there-sentences such as these: (1)  There is a dog in the yard (2)  There were no children at the party (3)  There

Interconnection networks, As in PRAM there was not any direct communication...

As in PRAM there was not any direct communication medium between processors so a different model called as interconnection networks have been considered. In the interconnection net

What are the cycle based simulators, What are the Cycle based simulators ...

What are the Cycle based simulators Cycle based simulators are more like a high speed electric carving knife in comparison since they focus on a subset of the biggest problem:

What are the issues of software development, What are the issues of softwar...

What are the issues of software development One of main issues in software development today is quality. Software must be properly documented and implemented. The notion of sof

Specifying optimisation criteria of describe function, Specifying Optimisat...

Specifying Optimisation Criteria Specify values to be minimized, maximized or optimized. You can understand it as way you normalize data in database. For instance, you should

Describe the operation of parallel in parallel out, Describe the operation ...

Describe the operation of parallel in parallel out (PIPO) shift register. Ans:  Parallel In Parallel Out: By the name suggests, in parallel in parallel out that is a

Benefit of digital versatile disk read only memory, Q. Benefit of digital v...

Q. Benefit of digital versatile disk read only memory? The main benefit of having CAV is that individual blocks of data can be accessed at semi-random mode. So head can be move

Explain the main characteristics of semiconductor memory, Explain the Main ...

Explain the Main characteristics of semiconductor memory Memory, with regard to computers, most commonly signifies to semiconductor devices whose contents can be accessed (whic

Learning weights in perceptrons, Learning Weights in Perceptrons: Furt...

Learning Weights in Perceptrons: Furthermore details are we will look at the learning method for weights in multi-layer networks next lecture. Thus the following description o

Determine the object oriented features, Object Oriented Analysis  T h...

Object Oriented Analysis  T he basics of object oriented analysis with the help of object oriented features. Analysis  Analysis is not a solution of the problem. We w

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd