Large-scale algorithms are designed to solve gigantic complex problems. The characterizing feature of large-scale algorithms is their need to have more than one execution engine due to the scale of their data and processing requirements. 

Human beings like to be challenged. For centuries, various human innovations have allowed us to solve really complex problems in different ways. From predicting the next target area of a locust attack to calculating the largest prime number, the methods to provide answers for complex problems around us kept on evolving. With the advent of the computer, we found a powerful new way to solve complex algorithms. 

A well-designed, large-scale algorithm has the following two characteristics: 

• It is designed to handle a huge amount of data and processing requirements using an available pool of resources optimally. 
• It is scalable. As the problem becomes more complex, it can handle the complexity simply by provisioning more resources. 

A Few Terminologies