From the course: Parallel and Concurrent Programming with Java 2

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Measure speedup: Java demo

Measure speedup: Java demo - Java Tutorial

From the course: Parallel and Concurrent Programming with Java 2

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Measure speedup: Java demo

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- [Instructor] To demonstrate how I measure the speedup of a parallel program in Java, I'll be using recursive sum algorithm that I created in an earlier video. It uses a divide-and-conquer approach to sum together all of the numbers within a range of values. The parallel implementation of that algorithm is contained within the recursive sum class on line eight, but since I already covered how it works, I'll use code folding to hide it for now. Down in the measure speedup demo class, I've written a method called sequential sum on line 38 which uses a for loop to implement a sequential version of that summing routine. I'll use it to measure the sequential execution time to provide a baseline for comparison, but, for now, I'll hide its inner workings as well. Now, the main method of this program contains a simple framework that I like to use to evaluate the performance of my parallel algorithms. On line 46, I have a variable to indicate the number of evaluation runs to measure each…

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