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  1. package myproj;
  2. import mpi.*;
  3. public class lab8 {
  4.     public static void main(String[] args) throws MPIException {
  5.         // Initialize MPI
  6.         MPI.Init(args);
  7.  
  8.         int MyRank = MPI.COMM_WORLD.Rank();  // Get the rank of the current process
  9.         int Numprocs = MPI.COMM_WORLD.Size(); // Get the number of processes
  10.         int tag = 100;
  11.  
  12.         // Message buffers
  13.         String send_message = MyRank + ": Hello";
  14.         String recv_message = new String(new char[50]);  // Buffer to receive message
  15.  
  16.         // Send message to all other processes
  17.         for (int i = 0; i < Numprocs; i++) {
  18.             if (MyRank != i) {
  19.                 // Send message to process i
  20.                 MPI.COMM_WORLD.Send(send_message.getBytes(), send_message.length(), MPI.BYTE, i, tag);
  21.             }
  22.         }
  23.  
  24.         // Receive message from all other processes
  25.         for (int i = 0; i < Numprocs; i++) {
  26.             if (MyRank != i) {
  27.                 // Receive message from process i
  28.                 MPI.COMM_WORLD.Recv(recv_message.getBytes(), 50, MPI.BYTE, i, tag);
  29.                 System.out.println("Process " + MyRank + " received message from process " + i + ": " + new String(recv_message));
  30.             }
  31.         }
  32.  
  33.         // Finalize MPI
  34.         MPI.Finalize();
  35.     }
  36. }
  37.  
  38.  
Success #stdin #stdout #stderr 0.27s 40644KB
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Standard input is empty
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Standard output is empty
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Error: unexpected symbol in "package myproj"
Execution halted
https://ideone.com/lwjVTQ
language:
R (R 3.5.2)
created:
2 hours ago
visibility:
public

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