Per-PSO Shader Validation for Targeted Graphics Pipeline Debugging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current shader validation workflows in graphics processing are limited to global enablement or disablement across all shaders and pipeline state objects (PSOs), leading to increased memory usage, performance overhead, and difficulty in identifying specific problematic shaders during development.
Innovation Solution
Implementing per-pipeline state object (PSO) shader validation techniques that allow developers to selectively enable or disable validation operations on individual PSOs, using graphics APIs and environmental variables to control validation states, reducing unnecessary validation and optimizing performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If global shader validation is enabled across all shaders and PSOs, then shader correctness is improved, but memory usage and performance overhead increase
Solution Approach 1:
The patent divides shader validation from global to per-PSO level by introducing individual validation enablement flags for each pipeline state object. This segmentation allows validation to be applied only where needed rather than universally, reducing unnecessary memory usage and performance overhead while maintaining shader correctness for validated PSOs.
Solution Approach 2:
The patent implements local quality by enabling shader validation on a per-PSO basis rather than globally. Each PSO can have its validation state independently controlled, allowing developers to apply validation only to specific PSOs that require it, thereby optimizing the balance between reliability and performance overhead for different parts of the rendering pipeline.
2Reliability
If global shader validation is enabled across all shaders, then shader correctness is improved, but difficulty in identifying specific problematic shaders increases
Solution Approach 1:
By segmenting validation control to the individual PSO level, the patent enables developers to isolate and identify problematic shaders more easily. When validation is enabled for specific PSO(s), any validation errors will be attributed to those particular PSOs, making debugging more efficient compared to global validation where errors are harder to trace.
Solution Approach 2:
The per-PSO validation enablement provides local quality control, allowing developers to apply validation selectively to specific PSOs suspected of containing issues. This localized approach improves the ability to detect and measure problems in specific shaders without the noise and complexity of global validation across all shaders.
3Adaptability or versatility
If per-PSO shader validation is implemented, then control over validation is improved, but device complexity increases
Solution Approach 1:
The patent introduces per-PSO validation enablement flags that segment the validation control mechanism into manageable units. Each PSO has its own validation state that can be independently controlled, providing fine-grained adaptability without requiring complex global management systems. This segmentation simplifies the overall device complexity by breaking down the validation control into discrete, manageable elements.
4Reliability
If shader validation is performed on all shaders, then shader correctness is improved, but compilation time increases
Solution Approach 1:
By segmenting validation to the per-PSO level, the patent allows developers to perform validation only on specific PSOs that require it, rather than compiling and validating all shaders. This selective approach reduces compilation time by avoiding unnecessary validation processing on PSOs that are known to be correct or do not require validation, while still maintaining shader correctness for the validated subset.
Data Source
AI summary
According to some graphics processing frameworks, so-called “pipeline state objects” (or “PSOs”) may be used to describe how a rendering pipeline will behave in each pipeline stage when rendering graphics (and/or performing compute pipeline operations). Often, during the development or debugging of a game or other type of application, developers may prefer to focus on validating only a specific subset of PSOs. However, current shader validation workflow designs may only be able to be enabled (or disabled) globally, i.e., across all shaders and PSOs, which is preventing these desired per-PSO shader validation workflows from being possible. In addition to improving performance, selective per-PSO shader validation techniques allow for even more demanding applications, e.g., applications that push device hardware to its limits, to still be able to benefit from selective validation of PSOs, e.g., PSOs that are currently being tested or suspected to be the cause of problems in an application.