Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Example Programmes for Parallel Systems
Now we shall complete this with the examples on shared memory programming.
Example 13: Adding elements of an array using two processor int sum, A[ n] ; //shared variables
void main ( ){
int i ;
for (i=0; i // now create process to be implemented by processor P1 fork(1) add (A,n/2,n-1, sum); // process to add elements from index n/2 to - 1.sum is output variable // now create process to be implemented by processor P0 add (A,0,n/2-1, sum); join 1 ; printf ("%d", sum); } add (int A[ ], int lower, int upper, int sum) { int sum1=0, i; for (i=lower; i<=upper; i++) sum1=sum1+A[i]; lock sum; sum=sum+sum1; unlock sum ; } In this program, the last half of the array is passed to processor P1 which adds them. Meanwhile processor P0 adds the first half of the array. The variable sum is locked to avoid inconsistency.
// now create process to be implemented by processor P1
fork(1) add (A,n/2,n-1, sum); // process to add elements from index n/2 to -
1.sum is output variable // now create process to be implemented by processor
P0 add (A,0,n/2-1, sum);
join 1 ;
printf ("%d", sum);
}
add (int A[ ], int lower, int upper, int sum) {
int sum1=0, i;
for (i=lower; i<=upper; i++)
sum1=sum1+A[i];
lock sum;
sum=sum+sum1;
unlock sum ;
In this program, the last half of the array is passed to processor P1 which adds them. Meanwhile processor P0 adds the first half of the array. The variable sum is locked to avoid inconsistency.
Q. Explain about Horn Antenna? - Outgoing transmissions broadcast by a stem and deflected outward - Received transmissions collect by a scooped part of the horn and deflecte
Q. Show the TCP connections? Connection establishment Three-way handshake Why is two-way handshake not enough? Connection termination Four steps
You should develop a system consisting of an application acting as a broker and several agents that need to communicate between them. The agents can only communicate in pairs (i.e.
FDDI Media Class B or SAS (single-attachment stations) attach to one ring Class A or DAS (dual attachment stations) attach to both rings. SASs is attached to the primary rin
Bridged Ethernet Raises bandwidth by dividing the network into smaller networks allowing concurrent communications Separates collision domains because traffic is lower
Q. Illustrate Keep alive and Time-Waited Timer? Keep alive timer To prevent a long inactive connection between two TCPs - Either client or server crash
- The project should include a web server, and an example webpage - Webserver should continue to accept multiple requests from client browser - Webserver should print out logs: how
Q. Show the Use of flow control? Flow control denotes to a set of procedures used to restrict the amount of data that the sender can send before waiting for Error Control
SONET SDH To satisfy the requirements of ever increasing data rate for diverse applications, ANS developed a standard known as synchronous optical network by utili
Hardware difficulty of Benz Network: - Benz network uses smaller switches and it gives excellent connectivity. To find hardware difficulty of Benz network let us presume that
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd