amd/RAI_1.6_CS_ORT_Infernce

C# ORT Inference using VITISAI EP

This document describes how to set up C# ORT inference using VITISAI EP, with the AMD provided Nuget packages.

Structure of the repository

• models/: Contains pre-trained AI models and their configurations for three different use cases:

  • open-ai-npu-clip\ - CLIP text and vision models for image-text understanding
  • whisper-small-en\ - Whisper speech recognition model for English audio processing
  • yolov8\ - YOLOv8 object detection model for computer vision tasks

• src/: Contains C# source code examples demonstrating ONNX Runtime inference:

  • open-ai-npu-clip\Program.cs - Runs inference using the clip models as stand alone models
  • whisper-small-en\Program.cs - Whisper model inference example
  • yolov8\Program.cs - YOLOv8 model inference example

Prerequisites

1. Download and unzip the file containing the Nuget packages provided by AMD
2. Clone the hugging face repository containing the application code, models, and cache
3. cd into the cloned repo
4. Create a directory for the Nuget packages inside the repo

mkdir nupkgs

5. Copy the contents of the unzipped Nuget packages to the nupkgs directory

6. If dotnet is not installed, install using the executable from https://builds.dotnet.microsoft.com/dotnet/Sdk/9.0.305/dotnet-sdk-9.0.305-win-x64.exe

Instructions to create a new project

1. From inside the cloned repo, create a new console application

dotnet.exe new console -n whisper_project

a new directory named whisper_project will be created

2. Change into the project directory

cd whisper_project

3. Add the required Nuget packages to the project

dotnet add package System.Memory --version 4.6.3

dotnet add package System.Numerics.Tensors --version 9.0.9

dotnet add package Microsoft.ML.OnnxRuntime.Managed --version 1.23.0-dev-20250928-1204-d70213d40e --source path_to_nupkgs

dotnet add package RyzenAI_Deployment --version 1.6.0 --source path_to_nupkgs

• The version numbers of the packages may change, please check the nupkgs directory for the correct version numbers.
• The path_to_nupkgs should be replaced with the actual path to the nupkgs directory created in step
• whisper_project is just an example

Instructions to run the provided examples

1. Modify the Program.cs source code file in the src\whisper-small-en directory, replacing the paths that reference models and cache locations to the actual paths on your system.

2. Copy the source code file from the src directory to the project directory created in the previous steps.

Copy ..\src\whisper-small-en\Program.cs . 

3. Build the project

dotnet build

4. Run the project

dotnet run

• To run another example, repeat Instructions to create a new project and Instructions to run the provided examples steps with different project names and source code files.