Graphics Processing Concurrent Rendering Task Dependency Tracking

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Solution Overview

Problem

Existing graphics processing systems face inefficiencies due to strict processing barriers between rendering jobs, leading to underutilization of processing cores and increased latency in generating sequences of render outputs.

Innovation Solution

A mechanism is introduced to track the completion status of rendering tasks using 'task completion status' data structures, allowing concurrent processing of rendering jobs while ensuring data dependencies are respected, thereby enabling overlap of rendering tasks across processing cores.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If strict processing barriers are enforced between rendering jobs to ensure data dependency correctness, then reliability is maintained, but productivity decreases due to underutilization of processing cores

Engineering Contradiction:

Improvedata dependency correctnessVSAvoidprocessing core utilization

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The system performs preliminary actions by issuing rendering tasks for subsequent rendering jobs before previous jobs complete, using task completion status tracking to determine when it is safe to proceed. This allows the system to prepare and queue tasks in advance without compromising data dependency correctness, thereby improving processing core utilization and overall productivity.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If rendering tasks wait for previous jobs to complete before starting, then data dependency correctness is ensured, but loss of time increases due to increased latency

Engineering Contradiction:

Improvedata dependency correctnessVSAvoidrendering latency

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system implements feedback mechanisms by continuously tracking task completion status and using this information to control the issuance of subsequent rendering tasks. This feedback-driven approach allows the system to dynamically adjust task issuance timing, ensuring data dependency correctness while minimizing unnecessary waiting time and reducing overall rendering latency.

Inventive Principle:

Principle #23Feedback

3Productivity

If concurrent processing of rendering jobs is allowed to improve productivity, then processing core utilization increases, but reliability decreases due to potential data dependency violations

Engineering Contradiction:

Improveprocessing core utilizationVSAvoiddata dependency correctness

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system introduces task completion status data structures as intermediaries between concurrent rendering tasks. These intermediaries track and communicate the completion state of previous jobs, allowing subsequent tasks to proceed only when appropriate. This mediator mechanism enables concurrent processing and improved core utilization while maintaining data dependency correctness through controlled access to shared resources.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250111467A1Graphics processing

Publication Date: 2025.04.03 ARM LTD

AI summary

When generating a sequence of render outputs using a graphics processor, the completion status of rendering tasks for different render outputs is tracked so that processing tasks for later render outputs in the sequence of outputs can be processed concurrently with processing tasks for earlier render outputs in the sequence of outputs whilst ensuring that any dependencies between the rendering tasks are enforced.