Linux leads in Top500 supercomputers, again and even moreso

As families go, the Linux operating system family has become the family among the Top500 supercomputers, running on 89.20% of all systems. Proprietary Unix, which used to the the preferred OS for these supercomputers in the 1990s is down to 5% share, and Windows is reported to be running on exactly 5 systems, for a 1% share.

With measured performance of nearly 2 petaflops and theoretical performance of more than 2 petaflops, these are some seriously high-performance machines! But more interesting is that Linux is the design center of a next-generation supercomputer aimed at cracking the exaflop barrier. Yet again we see validation that open source is a superior basis for innovation.

To promote and protect open source software and communities...

For over 20 years the Open Source Initiative (OSI) has worked to raise awareness and adoption of open source software, and build bridges between open source communities of practice. As a global non-profit, the OSI champions software freedom in society through education, collaboration, and infrastructure, stewarding the Open Source Definition (OSD), and preventing abuse of the ideals and ethos inherent to the open source movement.

Open source software is made by many people and distributed under an OSD-compliant license which grants all the rights to use, study, change, and share the software in modified and unmodified form. Software freedom is essential to enabling community development of open source software.