Parallel construct in openmp, Computer Networking

Assignment Help:

Parallel Construct

The syntax of the parallel construct is as follows:

#pragma omp parallel [set of clauses]

 where clause is one of the following:

 structured-block

if(scalar-expression)

private(list)

firstprivate(list)

default(shared | none)

 shared(list)

 copyin(list)

When a thread encounters a parallel construct, a set of new threads is created to implement the parallel region. Within a parallel region every thread has a unique thread number. Thread number of the master thread is zero. Thread number of a thread can be getting by the call of library function omp_get_thread_num. Now, we are giving the explanation of the clauses used in a parallel construct.

(a) Private Clause:

These clauses states one or more list items to be private to a thread. The syntax of the private clause is

 private(list).

(b) Firstprivate Clause:

The firstprivate clause states one or more list items to be private to a thread, and initializes each of them with the value that the corresponding original item has when the construct is encountered. The syntax of the firstprivate clause is as follows:

 firstprivate(list).

(c) Shared Clause:

The shared clause declares one or more list items to be shared between all the threads in a team. The syntax of the shared clause is :

 shared(list)

(d) Copyin Clause:

The copyin clause gives a mechanism to copy the value of the master thread's threadprivate variable to the threadprivate variable of each other member of the team implementing the parallel region. The syntax of the copyin clause is :

 copyin(list)


Related Discussions:- Parallel construct in openmp

Inductor, #clasification of inductor

#clasification of inductor

Which layer is responsible for framing, The Data link layer performs the fo...

The Data link layer performs the following: Responsible for physically passing data from single node to another. Translates messages from the upper layers into data frames and adds

Message passing in pvm, Message Passing The PVM communication model giv...

Message Passing The PVM communication model gives asynchronous blocking receive, asynchronous blocking send and nonblocking receive functions. In our methodology, a blocking se

Simple Pendulum, Give me a wide idea about simple pendulum and its types wi...

Give me a wide idea about simple pendulum and its types with equation and tables as usual assignment?

Describe how does arp response the request, ARP sent the request in broadca...

ARP sent the request in broadcast, response is unicast When a source sends ARP request the switch broadcast the ARP req. if it doesn't have the destination mac address in its ma

Tcp connections - transport layer, TCP Connections TCP  is an end to e...

TCP Connections TCP  is an end to end point to point  transport  used in internet. being a point  to point  protocols  means that  there is always  s single  sender  a single

What are the advantages of star topology, What are the advantages of Star T...

What are the advantages of Star Topology? The advantages of star topology are: a. Relatively easy to configure. b. Simple to troubleshoot c. Media faults are automatic

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