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

Standard ip access-list use as test criteria, What does a Standard IP Acces...

What does a Standard IP Access-list use as test criteria Ans) Standard IP access list use only source address.

Differentiate between web and web page, Differentiate between Web and Web...

Differentiate between Web and Web Page Web or Net The World Wide Web (a server) consisting of a hypermedia system (linking sounds, text, pictures, video) that the com

Top level domain servers, TOP Level Domain  (TLD) Servers These  serve...

TOP Level Domain  (TLD) Servers These  servers are responsible  for top  level  domains such  as com org net edu, and  going  and all  the country  top level  domains  such  a

Explain the structure of a typical ethernet frame, Question: (a) The IE...

Question: (a) The IEEE 802 series of standards describe both the Physical and Data Link layers of their respective technologies. Two important standards are 802.3 and 802.5, r

What is encapsulation and de-encapsulation, Process to send data is called ...

Process to send data is called as encapsulation and process to receive data is called De-encapsulation.

Sorting using combinational circuit, Now, let us suppose a famous sequence ...

Now, let us suppose a famous sequence called as bitonic sequence and sort out the elements using a combinational circuit consisting of a set of comparators. The property of bitonic

Determine about the complete and proper security, Determine about the Compl...

Determine about the Complete and proper security Complete and proper security configuration and administration is indeed a complex issue. One should think carefully about the

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