To build PHOENIX, you must prepare your system with the necessary tools and dependencies. The process varies slightly between Linux and Windows. Follow the steps below for your platform.

On Linux, you need to install GCC and CUDA. Here's how:

1. Update the Package Index
   Open a terminal and update the package index:

   sudo apt update

2. Install GCC
   Install the build-essential package, which includes GCC:

   sudo apt install build-essential

3. Verify Installation
   Check the GCC version to confirm installation:

   gcc --version

1. Download the CUDA Toolkit
   Visit the CUDA Toolkit download page and select the appropriate version for your system. Follow the instructions to download the .deb package.

2. Install the CUDA Toolkit
   Use the downloaded .deb file to install CUDA. Example for Ubuntu:

   sudo dpkg -i cuda-repo-<distro>_<version>_amd64.deb
   sudo apt-key adv --fetch-keys http://developer.download.nvidia.com/compute/cuda/repos/<distro>/x86_64/7fa2af80.pub
   sudo apt update
   sudo apt install cuda

   Replace <distro> with your distribution (e.g., ubuntu2004) and <version> with the version you downloaded.

3. Set Environment Variables
   Add CUDA to your PATH and library paths by editing your .bashrc file:

   echo 'export PATH=/usr/local/cuda/bin${PATH:+:${PATH}}' >> ~/.bashrc
   echo 'export LD_LIBRARY_PATH=/usr/local/cuda/lib64${LD_LIBRARY_PATH:+:${LD_LIBRARY_PATH}}' >> ~/.bashrc
   source ~/.bashrc

4. Verify Installation
   Check the CUDA compiler version:

   nvcc --version

Commands might vary slightly depending on your Linux distribution:

• GCC:

  sudo dnf install @development-tools

• CUDA: Follow the NVIDIA instructions for .rpm files.

• GCC:

  sudo pacman -S base-devel

• CUDA:

  sudo pacman -S cuda

Reboot to ensure all environment variables are loaded:

sudo reboot

On Windows, preparation requires installing Visual Studio, CUDA Toolkit, and MSYS2.

1. Download Visual Studio
   Go to the Visual Studio download page and download the installer.

2. Install Visual Studio

   • Select the "Desktop Development with C++" workload.
   • Complete the installation.

3. Add cl.exe to PATH

   • Open "Environment Variables" from the Start Menu.
   • Edit the Path variable and add:

     C:\Program Files (x86)\Microsoft Visual Studio\<version>\VC\Tools\MSVC\<version>\bin\Hostx64\x64
     

4. Verify Installation
   Open Command Prompt and type:

   cl

1. Download CUDA Toolkit
   Download the installer from the CUDA Toolkit page.

2. Install CUDA Toolkit
   Run the installer and follow the prompts.

3. Set Environment Variables
   Verify that the installer added the following to the PATH variable:

   C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.x\bin
   C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v11.x\libnvvp
   

4. Verify Installation
   Open Command Prompt and check:

   nvcc --version

1. Download MSYS2
   Visit the MSYS2 website and download the installer.

2. Install MSYS2
   Run the installer and complete the setup.

3. Update MSYS2
   Open the MSYS2 shell and update the package database:

   pacman -Syu

4. Install Required Packages
   Install development tools and the MinGW toolchain:

   pacman -S base-devel mingw-w64-x86_64-toolchain

5. Add MSYS2 to PATH
   Add the following to your PATH variable:

   C:\msys64\usr\bin
   

6. Verify Installation
   Open Command Prompt and type:

   gcc --version

By following these steps, your system will be ready to build and run PHOENIX. If you encounter any issues, refer to the official documentation for CUDA, Visual Studio, or MSYS2.