ease note this is not Java or C++ Complete the program 'Bcast-Reduce-Assignment.c' to make the program have the output as follows if we run the program using 2 processes. The input sequence is: 0 1 2 3 The output sequence is: 0 2 6 12 This is an MPI program and the
Please note this is not Java or C++
Complete the program 'Bcast-Reduce-Assignment.c' to make the program have the output as follows if we run the program using 2 processes.
The input sequence is:
0 1 2 3
The output sequence is:
0 2 6 12
This is an MPI program and the code below is partially finished. i am supposed to have input above result in the output above.
//////////////////////////////////////////////////////////////////////////
//
// This is a simple MPI program using MPI_Bcast and MPI_Reduce functions
//
// Compile: mpicc Bcast-Reduce-Example.c -o Bcast-Reduce-Example
//
// Run: mpiexec -n <p> ./Bcast-Reduce-Example
//
// -p: the number of processes
//
/////////////////////////////////////////////////////////////////////////
#include <stdio.h>
#include <stdlib.h>
#include <mpi.h>
int main(void)
{
int my_rank, comm_sz;
int i;
int Count = 4;
int Number[4];
int PartialResult = 0;
int Result;
MPI_Init(NULL, NULL);
MPI_Comm_size(MPI_COMM_WORLD, &comm_sz);
MPI_Comm_rank(MPI_COMM_WORLD, &my_rank);
if(my_rank == 0)
{
printf("The input sequence is as follows: \n");
for (i = 0; i < Count; i++)
{
Number[i] = i;
printf("%d ", Number[i]);
}
printf("\n");
}
// Process 0 sends data to all of the processes
MPI_Bcast(Number, Count, MPI_INT, 0, MPI_COMM_WORLD);
for (i = 0; i < Count; i++)
{
Number[i] += my_rank;
PartialResult += Number[i];
}
MPI_Reduce(&PartialResult, &Result, 1, MPI_INT, MPI_PROD, 0, MPI_COMM_WORLD);
// Print out the result
if (my_rank == 0)
printf("The final resutl is: %d. \n", Result);
MPI_Finalize();
return 0;
}
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