Programmable Pixel Distribution for Dynamic Tile Load Balancing

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Solution Overview

Problem

Existing three-dimensional graphics processing systems face inefficiencies in load balancing and resource utilization due to fixed assignments of render target tiles to processors, which can lead to suboptimal performance and power consumption.

Innovation Solution

A programmable approach is introduced to dynamically reassign render target tiles to screen-space processors, allowing for load balancing, power savings, and optimization based on manufacturing quirks or runtime performance considerations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If fixed assignments of render target tiles to processors are used, then system simplicity is maintained, but load balancing and resource utilization efficiency deteriorate

Engineering Contradiction:
Improveload balancing efficiencyVSAvoidprocessor assignment configuration
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent implements dynamic reassignment of render target tiles to screen-space processors based on runtime performance considerations. The system can switch between different assignment configurations (e.g., row-major, column-major, or custom patterns) to optimize load distribution across processors, transforming a static fixed assignment into a flexible dynamic one that adapts to varying rendering workloads and hardware performance characteristics.

Inventive Principle:
Principle #15Dynamics

2Loss of energy

If fixed assignments of render target tiles to processors are used, then implementation simplicity is maintained, but power consumption optimization deteriorates

Engineering Contradiction:
Improvepower consumptionVSAvoidassignment configuration management
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent changes the assignment configuration parameters dynamically to optimize power consumption. By adjusting which processors handle which render target tiles based on processor utilization patterns, thermal conditions, and power availability, the system can reduce overall power consumption while maintaining rendering quality. This involves modifying assignment patterns rather than changing the fundamental hardware architecture.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If dynamic reassignment of render target tiles is implemented, then processor utilization and load balancing improve, but system complexity increases

Engineering Contradiction:
Improveprocessor utilizationVSAvoidassignment configuration management
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the render target into multiple tiles and assigns them to different screen-space processors in a systematic manner. This segmentation allows for fine-grained control over workload distribution while maintaining manageable complexity through structured assignment patterns. The render target is divided into a grid of tiles that can be independently assigned and processed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system incorporates feedback mechanisms that monitor processor performance and utilization in real-time. Based on this feedback, the assignment configuration can be dynamically adjusted to optimize processor utilization. The system learns from runtime performance data and adapts tile assignments accordingly, creating a closed-loop control system that continuously improves efficiency.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250308130A1Programmable pixel distribution
Publication Date: 2025.10.02 ADVANCED MICRO DEVICES INC
  • US20250308130A1 patent drawing
  • US20250308130A1 patent drawing
  • US20250308130A1 patent drawing

AI summary

A technique for rendering is provided. The technique includes distributing primitives to a set of screen space processors based on a first assignment configuration; modifying assignment configuration to replace the first assignment configuration with a second assignment configuration; and distributing primitives to the set of screen space processors based on the second assignment configuration.