Implement the code for below assignment Map (the mapper function) EmitIntermediate(the intermediate key,value pairs emitted by the mapper functions) Reduce (the reducer function) Emit (the final output, after summarization from the Reduce functions) We provide you with a single system, single thread version of a basic MapReduce implementation. Task The input is a number of test cases with two matrices each. A single test case will look like: The required output is to print the product of the two matrices in the format shown. The code for the MapReduce class, parts related to IO etc. has already been provided. However, the mapper and reducer functions are incomplete. Your task is to fill up the mapper and reducer functions appropriately, such that the program works, and outputs the product of the two matrices, in row-wise manner. Also, this program outputs certain information to the error stream. This information has been logged to help beginners gain a better understanding of the the intermediate steps in a map-reduce process. Languages Supported Currently, we provide the base code in Python. Input Format First line of the input will contain the number of test cases, for each test case, there will be two matrices. For each matrix, the first line will contain the number of rows and columns and from the second line, row*column number of elements of matrix will be given. We have already written the input handling code to read in this data. Output Format Again, the output handling part has already been provided in the template code. The output contains the product matrix arranged in a row-wise manner. Sample Input 1 3 2 1 2 2 3 4 5 2 3 2 4 5 3 6 7 Sample Output 8 16 19 13 26 31 23 46 55
Implement the code for below assignment
Map (the mapper function)
EmitIntermediate(the intermediate key,value pairs emitted by the mapper functions)
Reduce (the reducer function)
Emit (the final output, after summarization from the Reduce functions)
We provide you with a single system, single thread version of a basic MapReduce implementation.
Task
The input is a number of test cases with two matrices each. A single test case will look like:
The required output is to print the product of the two matrices in the format shown. The code for the MapReduce class, parts related to IO etc. has already been provided. However, the mapper and reducer functions are incomplete. Your task is to fill up the mapper and reducer functions appropriately, such that the program works, and outputs the product of the two matrices, in row-wise manner.
Also, this program outputs certain information to the error stream. This information has been logged to help beginners gain a better understanding of the the intermediate steps in a map-reduce process.
Languages Supported
Currently, we provide the base code in Python.
Input Format
First line of the input will contain the number of test cases, for each test case, there will be two matrices. For each matrix, the first line will contain the number of rows and columns and from the second line, row*column number of elements of matrix will be given. We have already written the input handling code to read in this data.
Output Format
Again, the output handling part has already been provided in the template code. The output contains the product matrix arranged in a row-wise manner.
Sample Input
1
3 2
1 2
2 3
4 5
2 3
2 4 5
3 6 7
Sample Output
8 16 19
13 26 31
23 46 55
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
