Linux continues to rule supercomputers

http://www.zdnet.com/linux-continues-to-rule-supercomputers-7000016968/

The June 2013 Top500 supercomputer list is in, and 476 of the top 500 fastest supercomputers in the world run Linux.

Top processor architectures

• x86-64 - 435
  • Intel Xeon - 372
  • AMD Opteron - 62
• Power - 58
• SPARC - 5

Linux has rapidly gained market share in Top500: