Abstract: Embodiments described herein provide a technique to facilitate the synchronization of workgroups executed on multiple graphics cores of a graphics core cluster. One embodiment provides a graphics core including a cache memory and a graphics core coupled with the cache memory. The graphics core includes execution resources to execute an instruction via a plurality of hardware threads and barrier circuitry to synchronize execution of the plurality of hardware threads, wherein the barrier circuitry is configured to provide a plurality of re-usable named barriers.

Abstract: A seismic reflection data acquisition method adopts concentric circle equal offset, which is in the engineering geophysical exploration technology field. Specifically the receivers are placed in a way of concentric circle. Choose a compact point on the rock on the tunnel surface; takes the hypocenter as the center and set three concentric survey circles; stimulates seismic waves at the center and receives the reflection wave from the place ahead of the tunnel face by the receivers. A 3D graphics is created based on the positions of the receivers on the tunnel face, by which a 3D geotectonic face is able to be observed clearly through corresponding analysis processing method to receive the information of structures and defective geological bodies ahead.