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.
Mail Message Format When an e mail is sent from one person to another a header containing peripheral information precedes the body of the message itself. This contained
State the specification of high-end server A mid-range or high-end server with the following specifications would be sufficient for a medium to large organisation: A Pentiu
What is piggybacked ACK The protocol will be incorrect. Suppose that 3-bit sequence numbers we are using. Consider following situation: A just send frame 7. B gets frame
Networks are more frequently being prepared to allow specification of the quality of service needed by users. For example: - a typical voice telephone call may give a QoS para
Data link layeris called as error detection layer
DEFINE
Define the Class B Addresses? First two octets are the network number as well as the last two octets are the host number 16382 probable blocks for assignment to organi
Define the term Socks- Network security As it is well known, each type of network security protects data at a different layer of the OSI model. Built-in at each layer lies the
Question 1 What is bandwidth? >>What is the bandwidth of a) Telephone signal b) Commercial radio broa
whats is ip address
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