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  1. import mpi.*;
  2.  
  3. public class MPITest {
  4.     public static void main(String[] args) throws MPIException {
  5.         MPI.Init(args);
  6.         int rank = MPI.COMM_WORLD.Rank();
  7.         int size = MPI.COMM_WORLD.Size();
  8.         int n = 0;
  9.  
  10.         if(rank == 0) {
  11.             Scanner scanner = new Scanner(System.in);
  12.             System.out.print("Enter the value of n: ");
  13.             n = scanner.nextInt();
  14.         }
  15.  
  16.         MPI.COMM_WORLD.Bcast(new int[] { n }, 0, 1, MPI.INT, 0);
  17.  
  18.         if(rank == 0) {
  19.             System.out.println("Even numbers from 1 to " + n + ": ");
  20.             for(int i = 2; i <= n; i += 2) {
  21.                 System.out.print(i + " ");
  22.             }
  23.             System.out.println();
  24.         } else if(rank == 1) {
  25.             int a = 0, b = 1, c;
  26.             System.out.println("Fibonacci series from 1 to " + n + ": ");
  27.             System.out.print(a + " " + b + " ");
  28.             for(int i = 2; i < n; i++) {
  29.                 c = a + b;
  30.                 System.out.print(c + " ");
  31.                 a = b;
  32.                 b = c;
  33.             }
  34.             System.out.println();
  35.         } else if(rank == 2) {
  36.             int sum = 0;
  37.             for(int i = 1; i <= n; i++) {
  38.                 sum += i;
  39.             }
  40.             System.out.println("Sum of numbers from 1 to " + n + ": " + sum);
  41.         } else if(rank == 3) {
  42.             System.out.println("Prime numbers between 1 to " + n + ": ");
  43.             for(int i = 2; i <= n; i++) {
  44.                 boolean isPrime = true;
  45.                 for(int j = 2; j < i; j++) {
  46.                     if(i % j == 0) {
  47.                         isPrime = false;
  48.                         break;
  49.                     }
  50.                 }
  51.                 if(isPrime) {
  52.                     System.out.print(i + " ");
  53.                 }
  54.             }
  55.             System.out.println();
  56.         }
  57.  
  58.         MPI.Finalize();
  59.     }
  60. }
  61.  
  62.  
  63.  
Success #stdin #stdout #stderr 0.24s 39060KB
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Standard input is empty
stdout
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Standard output is empty
stderr
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Error: unexpected symbol in "import mpi."
Execution halted
https://ideone.com/2ijfn8
language:
R (R 3.5.2)
created:
2 years ago
visibility:
public

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