MEMORY CONTROLLER OF GRAPHIC PROCESSING UNIT CAPABLE OF IMPROVING ENERGY EFFICIENCY AND METHOD FOR CONTROLLING MEMORY THEREOF

摘要

The present invention relates to a plurality of memory chips including a graphics processing unit including a plurality of streaming multiprocessors and a plurality of memory controllers, and a predetermined plurality of row buffers corresponding to at least one bank and at least one bank, respectively. In the memory controller of a graphics processing device including a memory configured as a memory channel of receives a memory request command from the CTA of , maps a row address specified by the memory request command to one of the identifiers of a plurality of row buffers corresponding to a bank corresponding to the row address, and a row buffer to which each of the plurality of CTAs is mapped By counting the number of accesses and allocating a specified number of raw buffers to at least one CTA among a plurality of CTAs according to the count value, access to and collisions with the raw buffer can be efficiently managed, and energy consumption can be reduced. In addition, it is possible to provide a memory controller for a graphics processing device capable of ensuring the fairness of memory access of a plurality of thread blocks and a memory control method thereof.