#include <mpi.h>
#include <iostream>
 
int main(int argc, char** argv) {
    MPI_Init(&argc, &argv);
 
    // Your MPI code goes here
 
    MPI_Finalize();
    return 0;
}
 
int numProcesses, rank;
MPI_Comm_size(MPI_COMM_WORLD, &numProcesses);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
 
std::cout << "Total processes: " << numProcesses << ", My rank: " << rank << std::endl;
 
int data = 100;
if (rank == 0) {
    MPI_Send(&data, 1, MPI_INT, 1, 0, MPI_COMM_WORLD);
} else if (rank == 1) {
    MPI_Recv(&data, 1, MPI_INT, 0, 0, MPI_COMM_WORLD, MPI_STATUS_IGNORE);
    std::cout << "Received data: " << data << std::endl;
}
 
int sendData = 100;
int recvData;
MPI_Bcast(&sendData, 1, MPI_INT, 0, MPI_COMM_WORLD); // Broadcast data from rank 0 to all other ranks
MPI_Reduce(&sendData, &recvData, 1, MPI_INT, MPI_SUM, 0, MPI_COMM_WORLD); // Reduce data from all ranks to rank 0
 
MPI_Request request;
MPI_Isend(&data, 1, MPI_INT, 1, 0, MPI_COMM_WORLD, &request);
// Perform other computation
MPI_Wait(&request, MPI_STATUS_IGNORE); // Wait for the send operation to complete
 

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