Dual-GPU Execution Switching Under Low-Power Mode Changes
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Solution Overview
Problem
Existing information processing apparatuses with switchable graphics configurations fail to achieve expected performance in low power consumption modes due to the inability to efficiently transition between integrated and discrete GPUs during power control mode changes, leading to suboptimal image processing capacity and power consumption.
Innovation Solution
An information processing apparatus with an execution management unit and power control unit that selectively switches between integrated and discrete GPUs based on power control modes, allowing for controlled transitions and optimized processor usage to maintain performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the dGPU is designated as an execution processor for a specific application requiring large amounts of image processing, then image processing performance is improved, but power consumption increases and cannot be reduced when switching to low power consumption modes
Solution Approach 1:
The patent implements dynamic switching between iGPU and dGPU as execution processors based on the current power control mode. When transitioning from high power consumption mode to low power consumption mode, the system dynamically changes the execution processor from dGPU to iGPU, enabling adaptive power management while maintaining application performance where appropriate
Solution Approach 2:
The system changes the operational parameters by switching the execution processor designation between iGPU and dGPU according to power control mode settings. This parameter change allows the system to optimize the balance between performance and power consumption by selecting the appropriate processor for the current operational requirements
2Use of energy by moving object
If the power control mode is changed from high power consumption mode to low power consumption mode during application execution on the dGPU, then power consumption is reduced, but the application execution may be interrupted or performance degraded
Solution Approach 1:
Before changing the power control mode, the system performs preliminary actions by notifying the application of the upcoming mode change and providing guidance information. This allows the application to prepare for the transition, such as saving state information or adjusting its execution plan, thereby maintaining execution continuity and reliability
Solution Approach 2:
The system implements feedback mechanisms by monitoring application execution status and power control mode changes, then providing guidance information to the application. This feedback loop enables coordinated transitions that maintain application reliability while achieving power consumption reduction
Data Source
AI summary
An information processing apparatus includes a first processor, a second processor, an execution management unit configured to select a processor corresponding to a program whose execution is instructed, based on setting information indicating an execution processor for each program, and a power control unit configured to control an operation state based on power consumption of the first processor and the second processor, according to a power control mode selected from a plurality of levels of power control modes that differ in rated power. The power control unit is configured to stop access to the second processor, when changing the power control mode from a high power control mode whose rated power is higher than or equal to a predetermined rated power to a low power control mode whose rated power is lower than the predetermined rated power.