Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Q. Explain about Deadlock Avoidance?
To prevent deadlocks two kinds of techniques are used:
1) Static prevention: It employs P and V operators in addition to Semaphores to allocate and deallocate shared resources in multiprocessor. Semaphores are created based on sleep wait protocol. The portion of programme where a deadlock may occur is termed as critical section. Semaphores are like control signals used for avoiding collision between processes.
P and V technique of Deadlock prevention acquaintances a Boolean value 0 or 1 to every semaphore. Two atomic operators, P and V are used to access critical section symbolized by the semaphore. The P(s) operation makes value of semaphore is to be raised by one if s is already at non-zero value.
The V(s) operation raises value of s by one if it's not already one. The equation s=1 denotes availability of resource and s=0 denotes non-availability of resource.
At the time of execution different processes may submit their requests for resources asynchronously. The resources are assigned to different processors in such a manner that they don't create circular wait. The disadvantage of static prevention is poor resource utilisation.
2) One additional method of deadlock prevention is dynamic deadlock avoidance. It ensures deadlocks on runtime condition that may bring in heavy overhead in distinguishing potential existence of deadlocks.
Define Apple MobileMe Calendar The MobileMe Calendar is a web-based calendar that can be accessed from any computer linked to the Internet, Mac or Windows. What makes it more u
Automatic correlation from web point of sight can be set in recording options and correlation tab. Here we can enable correlation for the whole script and choose either issue onlin
Hyper-threading, officially known as Hyper-threading Technology (HTT), is Intel's trademark for their execution of the simultaneous multithreading technology on the Pentium 4 micro
Discuss the basic structure and principle of operation of Time Slot Interchange (TSI) switch with the help of a neat diagram. Principle of time slot interchange Time
design a ciruit which can work as a 4-bit binary adder as well as subtractor
To execute sparse matrix dynamically, Which data structure is used Linked List data structure is used to execute sparse matrix dynamically
Q. What do you mean by Perfect Shuffle Permutation? Perfect Shuffle Permutation: It was proposed by Harold Stone (1971). Consider N objects each is represented by n bit number
Method overloading is to overload methods using similar class name by writing different parameters. This is known as Method Overloading.
Creating Files for Writing Only Creating Files for Writing Only : To create a text file for writing only, pass "w" into fopen as the second argument. This example follows along
Objectives After going through this unit, you will be able to : Tell historical facts of parallel computing; Can explain the essential concepts of the discipline, e.g.
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd