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

Optimizing stp, Optimizing STP  Because there is a separate instance of ...

Optimizing STP  Because there is a separate instance of the spanning tree for every active VLAN, a separate root election is conducted for each instance. If the default switch p

Developing prototypes - digital receipts, Increasingly it is the quality of...

Increasingly it is the quality of the interface of mobile phones that are giving competitors the edge.  Users not only make selections based on cost but also functionality and cert

Assignment, Name the three ways or wireless data to be propagated.

Name the three ways or wireless data to be propagated.

Show vpns security and the internet model, Q. Show VPNs Security and the In...

Q. Show VPNs Security and the Internet Model? - VPN's Security and the Internet Model - Application layer - provide for each application protocol (other layers may be left v

Name the presentation layer standards, A.) JPEG and PICT B.) MPEG and MI...

A.) JPEG and PICT B.) MPEG and MIDI C.) ASCII and EBCDIC For example, the Presentation layer would be liable for changing from EDCDIC to ASCII. Data compression, decompres

eigrp protocol update route information, How does EIGRP protocol update ro...

How does EIGRP protocol update route information to its neighbors

Explain the technique- backpressure, Explain the technique- Backpressure ...

Explain the technique- Backpressure This technique produces an effect same to backpressure in fluids flowing down a pipe. It includes link-by-link use of flow control in a dire

Buffering - transport layer, Buffering This  protocols  provides  t...

Buffering This  protocols  provides  the advantage of buffering to the  receiver can buffer any out of order  packets after being received by  sending  acknowledgment  when

Mail message format - application layer, Mail Message  Format When an...

Mail Message  Format When an e mail  is sent from one person  to another  a header containing peripheral information precedes  the body  of the message itself. This contained

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