Addition of array elements using two processors, Computer Engineering

Assignment Help:

Q. Addition of array elements using two processors?

In this example we have to find sum of all elements of an array A of size n. We will divide n elements in 2 groups of roughly equivalent size. The first [n/2] elements are added by first processor P0 and last [n/2] elements by 2nd processor P1.  The two sums then are added to obtain the final result. The program is given below:

Program for P0

#include

#define n 100

int main(int argc, char **argv) {

int A[n];

int sum0 =0, sum1=0,sum;

MPI_Init(&argc, &argv);

for( int i=0;i

scanf("%d", &A[i]);

MPI_Send( &n/2, n/2, MPI_INT,1, 0, MPI_COMM_WORLD);

for(i=1; i

 sum0+=A[i];

sum1=MPI_Recv(&n/2, n/2, MPI_INT,1, 0, MPI_COMM_WORLD);

sum=sum0+sum1;

printf("%d",sum);

MPI_Finalize();

}

Program for P1,

int func( int B[int n])

{

MPI_Recv(&n/2, n/2, MPI_INT,0, 0, MPI_COMM_WORLD);

 int sum1=0 ;

for (i=0; i

  sum1+=B[i];

MPI_Send( 0, n/2, MPI_INT,0, 0, MPI_COMM_WORLD);

}


Related Discussions:- Addition of array elements using two processors

Single instruction and single data stream (sisd), Single Instruction and Si...

Single Instruction and Single Data stream (SISD) In this organisation, sequential implementation of instructions is executed by one CPU having a single processing element (PE

Translate the following sentences into predicate logic, Translate the follo...

Translate the following sentences into predicate logic. Give as much structure as possible. Provide a translation key for each predicate letter and individual constant. In your tra

Facsimile , FACSIMILE : This is often known as 'fax' and it represents the...

FACSIMILE : This is often known as 'fax' and it represents the interface between reprographic and computer technology. By using fax, the contents of a sheet of paper (text or illu

When the get cursor command used in interactive lists, When the get cursor ...

When the get cursor command used in interactive lists? If the hidden information is not enough to uniquely recognize the selected line, the command GET CURSOR is used.  The GET

Which rule is used for the expansion of nested macro calls, The expansion ...

The expansion of nested macro calls done by using of? Ans. LIFO rule is used for the expansion of nested macro calls.

Explain the essential elements of electronic data interchang, What are the ...

What are the essential elements of Electronic Data Interchange. The necessary elements of Electronic Data Interchange (EDI) are: The use of an electronic transmission me

Convergence mean with respect to e-commerce, What does the term convergence...

What does the term convergence mean with respect to E-commerce? Convergence with respect to e-commerce   The ability to leverage and integrate the several data sources and

List out the features of computer memory, List Out the Features of Computer...

List Out the Features of Computer Memory? Features of each type of memory   Type Volatile? Write able? Erase Size

What is collective message passing, Q. What is Collective Message Passing? ...

Q. What is Collective Message Passing? In collective message passing all the processes of a group take part in communication. MPI offers a number of functions to apply the coll

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