After my post this morning about South Africa’s 30TF supercomputer coming online I got to wondering just how unevenly distributed the flops of the world are, so I made a couple pictures using IBM’s ManyEyes site.
These are quick-and-dirty, but suffice to give you a picture of where the world’s flops are housed. Click on the thumbs to see a bigger picture.
In the final image, three variables are plotted for each country on the Top500 in this image. On the x-axis is the count of systems from that country. The y-axis shows the distance in degrees latitude of each country from the equator (either positive or negative, negative latitudes are in the southern hemisphere). The size of the circle is the sum of Rpeak (in GLFOPS) of all Top500 systems from that country. The biggest dot all by itself in the top right is the United States.
The data were gathered as follows: the Top500 website itself provides a list of Rpeak and system count by country. I used the data from the June 2009 list. For the chart that shows distance from the equator, I used the latitude value from the Google Maps centered view that results when you search on a country name.