An algorithm of collecting and constructing training location data is provided as it is applied to a test space of a plurality of beacons and training locations. A burst buffer appliance is configured to communicate with a plurality of compute nodes of a parallel computing system over a network and also to store message logs for a plurality of processes executing on the compute nodes, wherein the plurality of processes employ asynchronous checkpointing. The heat sink is formed to have a module holding part for holding the power module and a fitting hole for fitting with the flange and has a connector holding part for holding a connector. The degauss signal has a waveform comprising a plurality of decay segments including at least one alternating current decay segment and at least one direct current decay segment.