Openmp in shared memory programming, Computer Networking

Assignment Help:

OpenMP is a compiler directive based standard developed in the late 1990s jointly by a group of main computer hardware and software vendors. It is portable across a lot of popular platforms including Unix and Windows NT platforms. The OpenMP Fortran API was released on October 28, 1997 and the C/C++ API was released in late 1998. We shall talk about only about C/C++ API.

The OpenMP API uses the fork-join model of parallel implementation. As soon as an OpenMP program starts implementing it creates a single thread of implementation, known as the initial thread. The initial thread implements sequentially. As early as it gets a parallel construct, the thread makes additional threads and works as the master thread for all threads. All of the new threads implement the code inside the parallel construct. Only the master thread continues implementation of the user code beyond the end of the parallel construct. There is no restriction on the number of parallel constructs in a one program. When a thread with its child threads encounters a work-sharing construct, the work inside the construct is separated between the members of the team and implemented co-operatively instead of being implemented by every thread. Implementation of the code by every thread in the team resumes after the end of the work-sharing construct. Library routines and the Synchronization constructs are available in OpenMP to co-ordinate threads and data in parallel and work-sharing constructs.

Each OpenMP directive begins with #pragma omp. The general syntax is

#pragma omp directive-name [Set of clauses]

where omp is an OpenMP keyword. There may be additional clauses (parameters) after the directive name for dissimilar options.

Now, we shall talk about some compiler directives in OpenMP.


Related Discussions:- Openmp in shared memory programming

What is a counter, What is a Counter A software code that indicates ...

What is a Counter A software code that indicates how many times a site has been visited. It gets automatically updated and is usually represented by a small rectangle with n

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

What is stateful multi-layer inspection, What is Stateful Multi-Layer Inspe...

What is Stateful Multi-Layer Inspection (SMLI) They are considered as the third generation of firewall technology and usually combine the facilities of the above two. They are

Computer Networking help, Hello, I have a question which is due tomorrow (2...

Hello, I have a question which is due tomorrow (2/15/2013) at 11:55pm. The configuration portion of the exercise has been completed. I only need the questions in bold answered (onl

Disadvantages of ip sec tunnelling mode, Disadvantages of IP sec  Tunnelli...

Disadvantages of IP sec  Tunnelling mode IP sec  tunnelling  mode has the  following  disadvantage a.Encryption of  small  packets  generates a lot  networks  over head  thu

Vector-distance algorithm, Vector-Distance algorithm illustrated in more d...

Vector-Distance algorithm illustrated in more detail below: Packet switches wait for next update message and they goes by entries in packet. If entry has least path to destinat

Enumerate about the server modules, Enumerate about the server modules ...

Enumerate about the server modules WebDAV is one of the best-used server modules and many companies developing Intranet software or groupware as well as various publishing and

Unix for multiprocessor system, UNIX For Multiprocessor System:- The UN...

UNIX For Multiprocessor System:- The UNIX operating system for a multiprocessor system has a number of additional features as compared to the normal UNIX operating system.  Let

What is data representation, Q. What is Data Representation? Informatio...

Q. What is Data Representation? Information Today arrives in different forms such as numbers, text, images, audio and video. Text: Represented like a bit pattern a sequence

Protocol software and ethernet wiring, PROTOCOL SOFTWARE AND ETHERNET WIRIN...

PROTOCOL SOFTWARE AND ETHERNET WIRING:  All wiring methods use identical Ethernet specifications. e.g. they need same message format. They need same CSMA/CD algorithems. They m

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