公开(公告)号：US20200183597A1

公开(公告)日：2020-06-11

申请号：US16212388

申请日：2018-12-06

Applicant: ADVANCED MICRO DEVICES, INC.

Inventor： Shomit N. DAS ,  Kishore PUNNIYAMURTHY

IPC: G06F3/06

Abstract: A processing system scales power to memory and memory channels based on identifying causes of stalls of threads of a wavefront. If the cause is other than an outstanding memory request, the processing system throttles power to the memory to save power. If the stall is due to memory stalls for a subset of the memory channels servicing memory access requests for threads of a wavefront, the processing system adjusts power of the memory channels servicing memory access request for the wavefront based on the subset. By boosting power to the subset of channels, the processing system enables the wavefront to complete processing more quickly, resulting in increased processing speed. Conversely, by throttling power to the remainder of channels, the processing system saves power without affecting processing speed.