routines to run the machines themselves. Today, LLNL computer scientists focus on creating the highly complex physics models, visualization codes, and other unique applications tailored to specific research requirements. A great deal of software also has been written by LLNL personnel to optimize the operation and management of the computer systems, including operating systems such as TOSS, operating system extensions such as CHAOS (Linux Clustering), and resource management packages such as SLURM. LLNL also initiated and continues leading the development of ZFS on Linux, the official port of ZFS to the Linux operating system. Livermore Valley Open Campus (LVOC) In August 2009, a joint venture was announced between Sandia National Laboratories/California campus and LLNL to create an open, unclassified research and development space called the Livermore Valley Open Campus (LVOC). The motivation for the LVOC stems from current and future national security challenges that require increased coupling to the private sector to understand threats and deploy solutions in areas such as high performance computing, energy and environmental security, cyber security, economic security, and non-proliferation. The LVOC is modeled after research and development campuses found at major industrial research parks and other U.S. Department of Energy laboratories with campus-like security, a set of business and operating rules devised to enhance and accelerate international scientific collaboration and partnerships with U.S. government agencies, industry and academia. Ultimately, the LVOC will consist of an approximately 110-acre parcel along the eastern edge of the Livermore Laboratory and Sandia sites, and will house additional conference space, collaboration facilities and a visitor's center to support educational and research activities. Objectives of LVOC Enhance the two laboratories' national security missions by substantially increasing engagement with the private sector and academic community. Stay at the forefront of the science, technology and engineering fields. Ensure a quality future workforce by expanding opportunities for open engagement of the broader scientific community. Sponsors LLNL's principal sponsor is the Department of Energy/National Nuclear Security Administration (DOE/NNSA) Office of Defense Programs, which supports its stockpile stewardship and advanced scientific computing programs. Funding to support LLNL's global security and homeland security work comes from the DOE/NNSA Office of Defense Nuclear Nonproliferation, as well as the Department of Homeland Security. LLNL also receives funding from DOE's Office of Science, Office of Civilian Radioactive Waste Management, and Office of Nuclear Energy. In addition, LLNL conducts work-for-others research and development for various Defense Department sponsors, other federal agencies,