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

Internet architecture, Company seldom uses a single router to connect its e...

Company seldom uses a single router to connect its entire network for two purpose. Because the router must transmit every packet, the processor in a provided router is insuff

Determine about the tree topology, Determine about the Tree Topology A ...

Determine about the Tree Topology A generalization of the bus topology. The transmission medium is a branching cable with no closed loops. The tree layout begins at a point kno

Determine the mean node-node path, Mean node-node path The mean node-no...

Mean node-node path The mean node-node path is two times the mean node-root path.  Number the levels of the tree with the root as 1 and the deepest level as N.  The path from t

Application of internet control message protocol, The application for this ...

The application for this assignment is somewhat arti?cial. Normally, an application would not interact directly with IP. Instead, it would create a UDP or TCP socket and interact w

Length- transport layer, Length This is a 16 bit  field  that  defines...

Length This is a 16 bit  field  that  defines  the total  length  of the user  datagram, header  plus data. This 16 bit  can define  a total  length  of a 0 to 65, 535 bytes.

Difference among the communication and transmission, Difference among the c...

Difference among the communication and transmission? Transmission is a physical movement of information and concern issues as bit polarity, synchronization, clock etc. Commu

How to configure a wireless mac filter - ccna, Configure a Wireless MAC Fil...

Configure a Wireless MAC Filter Step: Add a Mac filter. Navigate back to the web utility page of the router (http://172.17.30.1). Navigate to the Wireless section a

What is shielded twisted pair, Q. What is Shielded Twisted Pair? - A me...

Q. What is Shielded Twisted Pair? - A metal foil or braided-mesh covering encases every pair of insulated conductors to prevent electromagnetic noise called crosstalk - Cros

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