(Parallel matrix multiplication) Programming Exercise 7.6 describes how to perform matrix multiplication. Suppose you have multiple processors, so you can speed up the matrix multiplication. Implement the following method in parallel

(Parallel matrix multiplication) Programming Exercise 7.6 describes how to perform matrix multiplication. Suppose you have multiple processors, so you can speed up the matrix multiplication. Implement the following method in parallel.

public static double[][] parallelMultiplyMatrix(
double[][] a, double[][] b) 

Write a test program that measures the execution time for multiplying two 2,000 * 2,000 matrices using the parallel method and sequential method, respectively.