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

Firewall, confiriguration,capabilities,implementation

confiriguration,capabilities,implementation

Subscriber database - computer network, Subscriber Database Core ne...

Subscriber Database Core network  also hosts  the subscribers  database ( for e, g HLR in GSM systems). Subscriber  database  is accessed by core  network  nodes fro  funct

Determine power dissipated in resistor, Question: With Vout not connect...

Question: With Vout not connected to any additional circuitry, what power is dissipated in the 7 kW resistor?

Explain peer-to-peer networking model, Explain Peer-to-Peer Networking Mode...

Explain Peer-to-Peer Networking Model. A networking model where every workstation has equivalent capabilities and responsibilities is called as peer-to-peer model. There is no

Packet cost - network layer and routing , Packet  Cost Both  distance ...

Packet  Cost Both  distance vector and link  state  routing  are lowest  algorithms. Tow factors  govern  how  cost is applied to packets  in determines  a route. Cost  is a

Connection establishment - tcp connection management, Connection Establishm...

Connection Establishment TCP transmits  data in full duplex mode. When two TCP is two machines are  connected they are able  to send segments to each other simultaneously. This

Debug ip igrp transaction, To monitor IP igrp traffic, we can use "debug IP...

To monitor IP igrp traffic, we can use "debug IP igrp transaction" or "debug IP igrp events". How do we show information about IPX routing update packets? Ans) Bu using debug ip

FlowCharts, How do I draw a flowchart and psuedocode that allows the user t...

How do I draw a flowchart and psuedocode that allows the user to input two different values and complete the sum and display the results?

What is the difference among tftp and ftp application, What is the differen...

What is the difference among TFTP and FTP application layer protocols? The Trivial File Transfer Protocol (TFTP) permits a local host to get files from a remote host but does n

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