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

A Comparative Study between MPLS VPN and the Public Internet, A Comparative...

A Comparative Study between MPLS VPN and the Public Internet which has intro. operation of tecnology, analysis, discussion, recommendation, conclusion.

Which two commands shows the cisco ios filename, These two command show the...

These two command show the cisco IOS filename a) show ver b) show flash

Name the two types of oltp, a) TP lite , based on stored procedures. b)...

a) TP lite , based on stored procedures. b) TP heavy , based on the TP monitors.

Name the layers of osi, List the layers of OSI There are seven layers i...

List the layers of OSI There are seven layers in OSI model a. Physical Layer b. Data Link Layer c. Network Layer d. Transport Layer e. Session Layer f. Presen

Define the types of computer network, Define the Types of Computer Network ...

Define the Types of Computer Network Computer networks fall into three classes regarding the size, distance and the structure namely: LAN (Local Area Network), MAN (Metropolita

What do you mean by openMP, Q. What do you mean by OpenMP? OpenMP is a ...

Q. What do you mean by OpenMP? OpenMP is a compiler directive based standard developed in late 1990s together by a group of main computer software and hardware vendors. It is p

Explain dynamic domain name system, Q. Explain Dynamic Domain Name System? ...

Q. Explain Dynamic Domain Name System? DDNS - Dynamic Domain Name System automatically updates the DNS master file - Sent by DHCP to a primary DNS server; secondary se

Error detection and correction, Error detection and correction The digi...

Error detection and correction The digital traffic stream of second generation systems also lends itself to the use of error detection and correction methods. The result can be

What is a computer network, What is a computer network? Computer Networ...

What is a computer network? Computer Network is a collection of distributed intelligent devices that are connected with each other with transmission media for the purpose of da

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