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

Briefly write functionalities of different osi layers, Briefly write functi...

Briefly write functionalities of different OSI layers? The OSI Reference Model includes seven layers. Basic functionality of each of them is as follows: 1. Physical Layer:

Fiber optic cable - computer network, Fiber Optic Cable A fiber  opt...

Fiber Optic Cable A fiber  optic  cable is made  of glass or plastic and transmits signals in the form of light pulses. An optical fiber  is a thin  flexible medium  conducts

Categories of address forms, Categories of address forms: STATIC: ...

Categories of address forms: STATIC:  In this type the hardware manufacturer gives permanent physical address to every network manufacturer and interface must ensure th

Data sharing - fundamentals of networks, Data Sharing One of the most ...

Data Sharing One of the most important uses of networking is to allow the sharing of data. Before networking was common an accounting employee who wanted to prepare a report f

What is the importance of encryption on a network, What is the importance o...

What is the importance of Encryption on a network? Encryption is the process of translating information into a code that is unreadable by the user. It is then translated back o

Explain fully connected interconnection networks, Fully connected : It is t...

Fully connected : It is the most powerful interconnection topology.  In this every node is directly associated to all other nodes. The limitation of this network is that it needs t

Destination port number - transport layer, Destination Port Number Thi...

Destination Port Number This is  port number used by the process  running on the destination host. It is also 16 bits long  if the destination  host if  server ( a client  sen

Name the strategies devised by ietf, Question: a) Show the shortest for...

Question: a) Show the shortest form of the following IPv6 address: 2340:0000:0000:000F:7000:119A:A001:0000 b) The IPv6 header includes a Class field and a Flow ID field. Bri

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