Dynamically Recongurable Processor Arrays (DRPAs) [1,

In multi-context Dynamically Recongurable Processor Ar-ray (DRPA), the required number of contexts is often in-creased by those with low resource usage. In order to ex-ecute such contexts without wasting a context memory, we propose a new execution mode called instruction buer mode in addition to the normal multi-context mode. In this mode, a conguration code from the central conguration memory is stored in the instruction buer and executed directly. Fur-thermore, by exploiting a multicast method, a single cong-uration code loaded to the buer can be executed by multiple processing elements in a SIMD fashion. We also investigate a mode selection policy based on simple formulas. From the result of implementation and evaluation by using a prototype DRPA called MuCCRA-1, it appears that the total execution time is reduced 12 % by using the instruction buer mode, while 12 % of the semiconductor area is increased