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@matthewsloyanARM matthewsloyanARM commented Nov 3, 2025

Description

This sample demonstrates the usage of the VK_ARM_tensors and VK_ARM_data_graph extensions for machine learning inference. These allow you to define a neural network with TOSA operations and then execute inferences using hardware acceleration.

This is the third in a series of samples which shows a user how they can use compute shaders to produce inputs to a simple neural network. There is also a post-processing compute shader that modifies the output tensor.

The first sample can be found here: #1394

Build & run guide

If you would like to try out this new sample locally, we provide an emulation layer which allows them to run. This can be found here: https://github.com/arm/ai-ml-emulation-layer-for-vulkan. There is also a pre-built Windows package available here: https://www.arm.com/-/media/Files/developer/MLEmulationLayerForVulkan20251107 or you can grab this through our tutorial: https://learn.arm.com/learning-paths/mobile-graphics-and-gaming/vulkan-ml-sample/. This tutorial is for this first sample already merged (simple_tensor_and_data_graph), so it shows you everything needed to try it out. The guide and pre-built is only for Windows though, it does work on Linux, but this will require a manual build from the repository (https://github.com/arm/ai-ml-emulation-layer-for-vulkan). See the build guide for this.

General Checklist:

Please ensure the following points are checked:

  • My code follows the coding style
  • I have reviewed file licenses
  • I have commented any added functions (in line with Doxygen)
  • I have commented any code that could be hard to understand
  • My changes do not add any new compiler warnings
  • My changes do not add any new validation layer errors or warnings
  • I have used existing framework/helper functions where possible
  • My changes do not add any regressions
  • I have tested every sample to ensure everything runs correctly
  • This PR describes the scope and expected impact of the changes I am making

Note: The Samples CI runs a number of checks including:

  • I have updated the header Copyright to reflect the current year (CI build will fail if Copyright is out of date)
  • My changes build on Windows, Linux, macOS and Android. Otherwise I have documented any exceptions

If this PR contains framework changes:

  • I did a full batch run using the batch command line argument to make sure all samples still work properly

Sample Checklist

If your PR contains a new or modified sample, these further checks must be carried out in addition to the General Checklist:

  • I have tested the sample on at least one compliant Vulkan implementation
  • If the sample is vendor-specific, I have tagged it appropriately
  • I have stated on what implementation the sample has been tested so that others can test on different implementations and platforms
  • Any dependent assets have been merged and published in downstream modules
  • For new samples, I have added a paragraph with a summary to the appropriate chapter in the readme of the folder that the sample belongs to e.g. api samples readme
  • For new samples, I have added a tutorial README.md file to guide users through what they need to know to implement code using this feature. For example, see conditional_rendering
  • For new samples, I have added a link to the Antora navigation so that the sample will be listed at the Vulkan documentation site

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@asuessenbach asuessenbach left a comment

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This sample looks great! I especially like the good comments on all relevant aspects.

Just a couple of comments...

@SaschaWillems
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Sample works fine for me, but has several validation errors:

[error] 222824743 - VUID-vkCreateTensorARM-tensors-09832: vkCreateTensorARM(): tensors feature is not enabled.
The Vulkan spec states: The tensors feature must be enabled (https://docs.vulkan.org/spec/latest/chapters/resources.html#VUID-vkCreateTensorARM-tensors-09832)
[error] 222824743 - VUID-vkCreateTensorARM-tensors-09832: vkCreateTensorARM(): tensors feature is not enabled.
The Vulkan spec states: The tensors feature must be enabled (https://docs.vulkan.org/spec/latest/chapters/resources.html#VUID-vkCreateTensorARM-tensors-09832)
[error] 222824743 - VUID-vkCreateTensorARM-tensors-09832: vkCreateTensorARM(): tensors feature is not enabled.
The Vulkan spec states: The tensors feature must be enabled (https://docs.vulkan.org/spec/latest/chapters/resources.html#VUID-vkCreateTensorARM-tensors-09832)
[error] 115483881 - VUID-VkShaderModuleCreateInfo-pCode-08740: vkCreateShaderModule(): SPIR-V Capability GraphARM was declared, but one of the following requirements is required (VkPhysicalDeviceDataGraphFeaturesARM::dataGraph).
The Vulkan spec states: If pCode is a pointer to SPIR-V code, and pCode declares any of the capabilities listed in the SPIR-V Environment appendix, one of the corresponding requirements must be satisfied (https://docs.vulkan.org/spec/latest/chapters/shaders.html#VUID-VkShaderModuleCreateInfo-pCode-08740)
[error] 167135271 - VUID-vkCreateDataGraphPipelinesARM-dataGraph-09760: vkCreateDataGraphPipelinesARM(): dataGraph feature is not enabled.
The Vulkan spec states: The dataGraph feature must be enabled (https://docs.vulkan.org/spec/latest/chapters/VK_ARM_data_graph/graphs.html#VUID-vkCreateDataGraphPipelinesARM-dataGraph-09760)
[error] 1553436542 - VUID-vkGetDataGraphPipelineSessionMemoryRequirementsARM-bindPoint-09784: vkGetDataGraphPipelineSessionMemoryRequirementsARM(): pInfo->bindPoint (VK_DATA_GRAPH_PIPELINE_SESSION_BIND_POINT_TRANSIENT_ARM) not found in session memory requirements.
The Vulkan spec states: The bindPoint member of pInfo must have been returned as part of a VkDataGraphPipelineSessionBindPointRequirementARM whose bindPointType member is VK_DATA_GRAPH_PIPELINE_SESSION_BIND_POINT_TYPE_MEMORY_ARM by a prior call to vkGetDataGraphPipelineSessionMemoryRequirementsARM for the session member of pInfo (https://docs.vulkan.org/spec/latest/chapters/VK_ARM_data_graph/graphs.html#VUID-vkGetDataGraphPipelineSessionMemoryRequirementsARM-bindPoint-09784)

Using the latest SDK.

@matthewsloyanARM
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@asuessenbach I have addressed your comments, thank you for review and the suggestions!

@SaschaWillems Thank you for trying this out! I will look into this with the latest SDK on our side. The tensor and data graph still isn't fully supported in the public validation layer yet, so this might be the cause.

I have also added the guide to downloading and using the ML Extensions for Vulkan Emulation Layer to the description so other can try it out.

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