ICP3 - neerajpadarthi/Big-Data-Programming GitHub Wiki

Name : Neeraj Padarthi

Class ID: 22

ICP : 3

Matrix Multiplication in Map Reduce

Map Code

• The whole program of matrix multiplication is divided into map and reduce phase.
• In map phase we will take 2 matrices that need to be multiplied.
• Figure out which variable needs to be multiplied with what in number according to that row column formula of matrix multiplication.
• Keep these numbers ready and pass it to the reduce phase

Reduce Code

• Reduce will take in the list of numbers that need to be multiplied and added to get the result of i * k matrix.
• Reduce phase will do the computation and result will be the matrix multiplication result

Main

• This main method will call the mp and reduce phase function calls as shown below

Input

Output