Wait protocol in parallel programming , Computer Networking

Assignment Help:

Wait protocol

The wait protocol is used for resolving the conflicts, which arise due to number of multiprocessors demanding the same resource. There are two types of wait protocols: busy-wait and sleep-wait. In busy-wait protocol, process stays in the process context register, which continuously tries for processor availability. In sleep-wait protocol, wait protocol process is detached from the processor and is kept in the wait queue. The hardware complexity of this protocol is more than busy-wait in multiprocessor system; if locks are used for synchronization then busy-wait is used more than sleep-wait.

Implementation modes of a multiprocessor: Several modes of multiprocessing include parallel implementation  of programs at (i) Fine Grain Level  (Process Level), (ii) Medium Grain Level (Task Level), (iii) Coarse Grain Level (Program Level).

For implementing the programs in these modes, the following conditions / actions are required at OS level.

i) Context switching among multiple processes should be fast. In order to make context Switching simple multiple sets should be present.

i) The memory allocation to various processes should be quick and context free.

ii) The Synchronization mechanism among multiple processes should be effective.

iii) OS should give software tools for performance monitoring.

 


Related Discussions:- Wait protocol in parallel programming

Briefly explain the terms ''cohesion'' and ''coupling'', QUESTION 1 (a)...

QUESTION 1 (a) Draw a use-case model for the above system. You must identify all possible actors and use-cases. (b) Assume you are using the Rational Unified Process a

Permutation representation through matrix, Q. Permutation representation th...

Q. Permutation representation through Matrix? Figure: Clos Network The functioning of this above permutation is displayed in Figure. This permutation is able to

How do you disable cdp on the whole router, By using this command Router(c...

By using this command Router(config)# no cdp run we can disable CDP on the entire Router

Fiber optic cable - computer network, Fiber Optic Cable A fiber  opt...

Fiber Optic Cable A fiber  optic  cable is made  of glass or plastic and transmits signals in the form of light pulses. An optical fiber  is a thin  flexible medium  conducts

What are the benefits of layered network, Q. What are the benefits of layer...

Q. What are the benefits of layered network? Ans: Basic benefits of layered network are given below: -  Complex systems will be broken down into understandable subsystems.

Network layer in osi model, The Network layer is used to route physical dat...

The Network layer is used to route physical data to the destination point, it decides the actual path from where data travels to destination point. The network layer supports both

Which protocol is used for booting diskless workstations, Reverse Address R...

Reverse Address Resolution Protocol - RARP is ARP's counterpart, but it resolves IP addresses to MAC addresses typically on diskless workstations.

Bit stuffing, bit stuffing program in python

bit stuffing program in python

What is groupware server, What is Groupware server? Groupware addresses...

What is Groupware server? Groupware addresses the management of semi-structured information like text, image, mail, bulletin boards and the flow of work. These Client/Server sy

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