HPC materials simulations at LLNL are revealing surprising insights into how metals behave under extreme pressure. Check out this research highlight on metal hardening from Science & Technology Review. Using Vulcan and Sequoia, two of our most powerful computers, a research team leveraged the LAMMPS (Large-Scale Atomic/Molecular Massively Parallel Simulator) molecular dynamics simulator to run simulations of a corrosion-resistant metal called tantalum. Developed by our colleagues at Sandia National Laboratories, LAMMPS is an open-source code that allows users to study the physical movement of atoms and molecules.