Efficient binary black hole simulations

We present results of simulations of spinning black hole binaries in circular orbits, which cover several orbits as well as the merger and ringdown phases. These simulations are performed using a moving punctures implementation within the BAM code. This code uses moving mesh refinement boxes. It is so efficient that our simulations can be performed on dual processor workstations. In particular, we compute the initial and final ADM mass and angular momentum and show their dependence on grid size and resolution. In addition, we discuss quality control curves and constraint satisfaction.