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.
Full Duplex - Capability for simultaneous data transmission among a sending station and a receiving station. It needs a workstation be attached to a switch, the NIC must support it
how to security net
What is Frequency diversity Due to the transmission is spread out over a larger bandwidth, frequency-dependent transmission impairments, like as noise bursts and selective fadi
how can I establish a home net work by using cables and wieless
Q. Basic working of Spanning Tree? Spanning Tree - Redundant bridges may be installed to provide reliability - To prevent infinite looping of packets between bridges,
Question 1 This question concerns the main security goals (confidentiality, integrity, availability). Describe a situation which provides the goal of confidentiality but does not
Full-Duplex Ethernet 10Base5 as well as 10Base2 are half-duplex Full-duplex raises capacity of each domain No require for CSMA/CD
a) Peer-to-Peer Network Computers can act as both servers sharing resources and as clients using the resources. b) Server-based Network Give centralized control of netwo
hii i want to make a assignment from you. please help me.
explain types of computer network
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