MACH3: A CHSSI code for computational magnetohydrodynamics of general materials in generalized coordinates

We were funded via the Common HPC Software Support Initiative (CHSSI) from 2000-2002 to develop a fully 3D arbitrary-coordinate parallel time-domain magnetohydrodynamic (MHD) simulation code - the CEA-10 project. CEA-10 built upon the single-fluid MHD, arbitrary Lagrangian-Eulerian multiblock, multitemperature, simulation environment called MACH3 (Multibloch Arbitrary Coordinate Hydromagnetics in 3D). The CEA-10 software underwent successful beta testing and review in December 2002. The beta tests consisted of five simulations: 1D magnetic diffusion, 2D Alfvenic shock, 2D flow over a wedge, 3D gas-filled rod pinch, and 3D laser-target interactions, run on various HPC platforms. The first three have analytic solutions and last two have experimental data and qualitative models to which simulated results can be compared. We obtained different scaled efficiency and parallel speedup results on different platforms and for different test problems.