GlowWorm is a 192 core private cluster, part of the Center for Advanced Computing‘s nyx cluster. It consists of 128 AMD Opteron cores and 64 Intel Xeon cores, both in configurations of 8 single cores with 3 Gb memory per core. All of the nyx nodes have a non-blocking gigabit network connection. In addition to the local storage on nyx, we have recently built a 20 Tb server, Alexandria, to serve as a library for the large volume of data produced in intensive 3D simulations.