The invention is related to a method, a device, and a machine readable medium for image capture and selection. The stream of vvbns is illustratively embodied as a file system data stream of a vvol that is transferred by a source to a destination in accordance with image transfer operations, such as volume copying and synchronous or asynchronous mirroring. The search space is then fractured into subspaces. Control every core in a group to start executing program instructions simultaneously according to another system debugging instruction.