a memory, configured to store a computer program; and

a processor, provided between a system main power supply and Graphics Processing Units (GPUs) in a system, and configured to implement following operations when executing the computer program:

dividing a utilization rate of a system main power supply into different levels in advance, and setting a Graphics Processing Unit (GPU) power control policy corresponding to a respective one of the different levels of the utilization rate of the system main power supply, wherein the level of the utilization rate of the system main power supply increases with the increase in the utilization rate of the system main power supply, and a suppression degree, on a computing capability of GPUs in a system, of the set GPU power control policy increases with the increase in the level of the utilization rate of the system main power supply;

acquiring an actual utilization rate of the system main power supply, and determining, according to a result of the level division on the utilization rate of the system main power supply, a target utilization rate level corresponding to the actual utilization rate; and

performing power supply control on the GPUs in the system according to the GPU power control policy corresponding to the target utilization rate level.