From the course: Complete Guide to Parallel and Concurrent Programming with Java

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Challenge: Matrix multiply in Java

Challenge: Matrix multiply in Java - Java Tutorial

From the course: Complete Guide to Parallel and Concurrent Programming with Java

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Challenge: Matrix multiply in Java

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(light upbeat music) - [Instructor] Your goal for this challenge is to design and build a parallel program that calculates the product of two matrices, which is a common mathematical operation that can benefit a lot from parallel computation. Each matrix will be stored as a two dimensional array of integer values. The first dimension of the array indexes rows of the matrix and is usually represented with the variable letter I and the second dimension indexes columns and is represented with the letter J. So for example, if the first array index value is zero, that refers to the top row of the matrix, and if the second value is two, that identifies the element at index two along that top row. It's common to represent the individual elements of a matrix using notation with two subscripts like this with the first subscript indicating the row and the second indicating the column. When it comes to multiplication, two matrices can be multiplied together if the number of columns in the first…

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