We’re creating an LLNL commodity cluster system software environment based on Linux/Open-Source. We use the Red Hat Enterprise Linux distribution, stripping out the modules we don’t need and adding and modifying components as required. Working in open source allows for important HPC customizations and builds in-house expertise. Having in-house software developers is necessary to quickly resolve problems (especially at scale) on our cutting-edge hardware without having to wait for the vendors. The environment includes Linux kernel modifications, cluster management tools, monitoring and failure detection, resource management, authentication and access control, and parallel file system software (detailed elsewhere). These clusters provide users with a production solution capable of running MPI jobs at scale. View content related to System Software.
LLNL’s culture of open-source software development strengthens Laboratory programs with an engaged user community.
This video provides a basic introduction to supercomputing, scientific computing, and high performance computing (HPC).
Sierra, LLNL’s next-generation supercomputer, is projected to provide four to six times the sustained performance and be at least seven times more powerful than Sequoia.
Eighty-five participants “keep calm and hack” at Computation’s fall hackathon.
Now in its third generation, LLNL-developed MacPatch handles software installation and patching for the Laboratory’s Mac computers.