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  1. import mpi.*;
  2. public class lab8 {
  3.     public static void main(String[] args) throws MPIException {
  4.         // Initialize MPI
  5.         MPI.Init(args);
  6.  
  7.         int MyRank = MPI.COMM_WORLD.Rank();  // Get the rank of the current process
  8.         int Numprocs = MPI.COMM_WORLD.Size(); // Get the number of processes
  9.         int tag = 100;
  10.  
  11.         // Message buffers
  12.         String send_message = MyRank + ": Hello";
  13.         String recv_message = new String(new char[50]);  // Buffer to receive message
  14.  
  15.         // Send message to all other processes
  16.         for (int i = 0; i < Numprocs; i++) {
  17.             if (MyRank != i) {
  18.                 // Send message to process i
  19.                 MPI.COMM_WORLD.Send(send_message.getBytes(), send_message.length(), MPI.BYTE, i, tag);
  20.             }
  21.         }
  22.  
  23.         // Receive message from all other processes
  24.         for (int i = 0; i < Numprocs; i++) {
  25.             if (MyRank != i) {
  26.                 // Receive message from process i
  27.                 MPI.COMM_WORLD.Recv(recv_message.getBytes(), 50, MPI.BYTE, i, tag);
  28.                 System.out.println("Process " + MyRank + " received message from process " + i + ": " + new String(recv_message));
  29.             }
  30.         }
  31.  
  32.         // Finalize MPI
  33.         MPI.Finalize();
  34.     }
  35. }
  36.  
  37.  
  38.  
Success #stdin #stdout #stderr 0.31s 40564KB
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Standard input is empty
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Standard output is empty
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Error: unexpected symbol in "import mpi."
Execution halted
https://ideone.com/5McENO
language:
R (R 3.5.2)
created:
3 hours ago
visibility:
public

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