A hybrid-grained reconfigurable architecture based on data stream

The coarse-grained reconfigurable array has the characteristics of high computational efficiency, but it does not perfectly support the control of complex algorithms.Based on theprinciple of data stream driven, this paper proposes a hybrid-grained reconfigurable architecture, which support the algorithms of control-intensive by combining fine-grained reconfigurable technology and coarse-grained reconfigurable technology. The architecture supports techniques of loop iteration fast issue and loop iteration spatial expansion.By adopting different mapping methods, we can get at least 20 percentage performance improvement.