synchronization principles of parallel programming , Computer Networking

Assignment Help:

In multiprocessing, various processors have to to communicate with each other. Therefore, synchronisation is needed between them. The correctness and performance of parallel execution depends upon efficient synchronisation between concurrent computations in multiple processes. The synchronisation problem may occur because of sharing of writable data objects between processes. Synchronisation includes executing the order of operations in an algorithm by finding the dependencies in writable data. Shared object access in an MIMD architecture needs dynamic management at run time, which is much more difficult as compared to that of SIMD architecture. Low-level synchronization primitives are executed directly in hardware. Other resources like Bus, CPU and memory unit also need synchronisation in Parallel computers.

To study the synchronization, the following dependencies are identified:

i)  Data Dependency:  These are RAW,WAR and WAW dependency.

ii) Control dependency: These depend upon control statements like IF THEN, GO TO, etc.

iii)Side Effect Dependencies:  These arise due to Traps, exceptions, I/O accesses. For the proper implementation order as enforced by correct synchronization, program dependencies must be analyzed properly. Protocols like wait protocol and sole access protocol are used for doing synchronization.

 


Related Discussions:- synchronization principles of parallel programming

What are intrusion detection systems, Question : a) Give three example...

Question : a) Give three examples of vulnerable services which are among the overwhelming majority of successful attacks. b) Name the five outside sources which can be the

Timesharing system, advantages and disadvantages of time sharing system

advantages and disadvantages of time sharing system

Network virtual terminal - transport layer , Normal 0 false f...

Normal 0 false false false EN-IN X-NONE X-NONE

Multicast extension to ospf, MOSPF MOSPF is multicast extension to OSP...

MOSPF MOSPF is multicast extension to OSPF. This protocol is extension of OSPF which is a unicast routing protocol which make MOSPF a combination of unicast and multicast prot

Unused reserved - trannsport layer, Unused Reserved This  is a 6 bi...

Unused Reserved This  is a 6 bite field  reserved for future use.

What do you understand by the term lan, Question: (a) What do you mean...

Question: (a) What do you meant by the term ‘LAN'? How is a LAN different from a WAN? (b) Explain three types of cables which are commonly used with LANs. (c) Three com

Explain the following: cdma and fdma, Question 1 Explain GSM digital cellu...

Question 1 Explain GSM digital cellular System model Question 2 Explain cellular Digital Packet Data(CDPD) system with the help of CDPD network reference model Question 3

How lans connected to internet, How LANs connected to Internet. Doublin...

How LANs connected to Internet. Doubling every 18 months means factor of four gains in 3 years. In 9 years, gain is then 43 or 64, which leads to 6.4 billion hosts. My intuitio

Difference between interior and exterior neighbour gateways, What is the di...

What is the difference between interior and exterior neighbor gateways? Interior gateways connect LANs of one organization, while exterior gateways connect the organization to

Explain the term- gateway, What is the Gateway A Gateway is a device li...

What is the Gateway A Gateway is a device like a mini or microcomputer capable of operating on a standalone basis but which also gives connection for communication with the oth

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