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.
DEFINE
Can you describe the concept of IP multicasting or multicast IP address?
Define the term - Proxy servers These types of firewalls have been further classified into two types: application level gateways and circuit level gateways. The application
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
Q. Host System in TCP-IP model? - Standards adopted because of widespread use like (Internet) - The protocols came first plus the model was really just a description of the
Future of the intranet At present, the world of information technology is guided bythe C 3 paradigm that stands for Command, Control and Communication, which is normally
What are different kinds of packets in EIGRP?
DNS Message There are the only two kinds of DNS message DNS query and reply messages. Further mote both query and reply message have the same format as shown in figure.
Questions: 1. A 5V Zener diode has a maximum power dissipation of 2W. What is the maximum current that can be safely passed through the device? 2. List three properties of a
can we correct errors using crc?
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