/rwkv-cpp-cuda

A torchless, c++ rwkv implementation using 8bit quantization, written in cuda

Primary LanguageC++MIT LicenseMIT

RWKV Cuda Support me on Patreon

This is a super simple c++/cuda implementation of rwkv with no pytorch/libtorch dependencies.

included is a simple example of how to use in both c++ and python.

Features

  • Direct Disk -> Gpu loading ( practically no ram needed )
  • Uint8 by default
  • Incredibly fast
  • No dependencies
  • Simple to use
  • Simple to build
  • Optional Python binding using pytorch tensors as wrappers
  • Native tokenizer!
  • Windows Support!
  • HIP(AMD) GPU support!
  • Vulkan(All) Support!
  • Distributable programs! (check actions for the prebuilt example apps)
  • Godot module

Roadmap

  • Optimize .pth converter (currently uses a lot of ram)
  • Better uint8 support ( currently only uses Q8_0 algorythm)
  • Fully fleshed out demos

Run example app

  1. go to the actions tab
  2. find a green checkmark for your platform
  3. download the executable
  4. download or convert a model (downloads here)
  5. place the model.bin file in the same place as the executable
  6. run the executable

Build Instructions

Build example storygen on Linux/windows

# in example/storygen
build.sh # Linux/nvidia
build.bat # Windows/nvidia
amd.sh # Linux/Amd
vulkan.sh # Linux/Vulkan(all)

You can find executable at build/release/rwkv[.exe]

Make sure you already installed CUDA Toolkit / HIP development tools / Vulkan development tools

Convert the model into the format

You can download the weights of the model here: https://huggingface.co/BlinkDL/rwkv-4-raven/tree/main

For conversion to a .bin model you can choose between 2 options:

GUI option

Make sure you have python + torch, tkinter, tqdm and Ninja packages installed.

> cd converter
> python3 convert_model.py

CLI option

Make sure you have python + torch, tqdm and Ninja packages installed.

> cd converter
> python3 convert_model.py your_downloaded_model.pth
  • On Windows, please run the above commands in "x64 Native Tools Command Prompt for VS 2022" terminal.

C++ tokenizer came from this project: https://github.com/gf712/gpt2-cpp/