Question

Given two integer matrices A and B, you are requested to compose a program to perform matrix addition (A + B). Both matrices have N rows and M columns; N > 1, M > 1; You need to divide both (A and B) into four equal (or close to equal) size of submatrices (A0,0, A0,1, A1,0, A1,1 and B0,0, B0,1, B1.0, B1.1)andeachsubmatrixhasdimensioncloseto(N/2)x(M/2). YouneedtocreatefourJavathreads each thread performs a subset of addition on one pair of the submatrices. Example, thread 0 performs addition on A0,0 and B0,0, thread 1 performs addition on A0,1 and B0,1, . . . etc. The final result should store in the matrix C of size N by M.

There must be a GUI implemented on the client side. The client is also in charge of reading in the data from file and transmitting the two matrices to the server. The server will receive the two 2D arrays and coordinate creation of four threads to add up the quadrants of the two matrices. The server will then send the results back to the client for the client to display on the GUI ’s textarea.

The server should wait for a TERMINATE String from the client before closing the connection. That means that the server will likely need to use instanceof in order to distinguish between String and int[][] type data.

1. 1)  Client – a GUI with text area for user input (file name) and a text area to display the result. After receiving the file name from the user interface, the client opens and reads the file (the format of the file is described below) for the two matrices A and B.
   Send both matrices to the Server, wait for the result from the server, and display the result on the display area with N rows and M columns.

2. 2)  Server – Starting and waiting for client connection. Receive both matrices A and B from the client, divide both matrices into four submatrices and generate four threads (processes) as described above (you are encouraged to re-use your Lab3 objects) to perform the requested addition.

   After completing the computation, send the result to the client. Then wait for another request from the client. Note: the server should run forever, waiting for clients to request connections.

File Format

1. 1)  the first line has two numbers, N and M (N rows, M columns), the size of both matrices A and B

2. 2)  the next N lines each has M elements for one of the rows of A

3. 3)  the next N lines each has M elements for one of the rows of B

Example:

46 231251

312224
123272
361513
654143
332211
754325
218484
For the above example, the result of the computation on the console should be

885394 644435 877597 579997

Instructions

•   You must use NxM two-dimension arrays for your implementation

•   You must divide the two-dimensional array into the form such as: 𝐴 = [𝐴0,0

  andC.

•   After the computation, the result needs to be stored in the matrix C.

•   Your program should work on any size matrix.

  Server and Client will be run as separate processes (logically separated on the same machine) though you could connect them across a network if you wanted. When making connection, the client needs to specify where the server is (the server IP address, localhost is one of the choices). There are no prior requirements on how to design your GUI, however you should provide a reasonable format to display the N by M results.

0. 
   

1. The Client needs to prompt the user for the input file name, open and read the file. Send the two NxM matrices to the server. After the Server receives the matrices, it performs the computation, then sends the results back to the Client. Client then displays the results on the Client’s GUI.

   Note: Both Client and Server may terminate the connection by issuing the TERMINATE command.