http://www.technologyreview.com/news/428497/your-laptop-can-now-analyze-big-data/
Your Laptop Can Now Analyze Big Data
New software makes it possible to do in minutes on a small computer what used to be done by large clusters of computers.
According to Guestrin, a Mac Mini running GraphChi can analyze Twitter's social graph from 2010—which contains 40 million users and 1.2 billion connections—in 59 minutes. "The previous published result on this problem took 400 minutes using a cluster of about 1,000 computers," Guestrin says.