High Quality Content by WIKIPEDIA articles! Yellow Dog Linux, also known as YDL, is a free and open source operating system for high performance computing on multicore architectures. It focuses on GPU systems and computers using the Power Architecture (Power7). YDL is currently developed by Fixstars (which acquired Terra Soft Solutions in October 2008). Yellow Dog Linux was first released in the spring of 1999 for the Apple Macintosh PowerPC-based computers.