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https://github.com/gotzmann/llama.go

llama.go is like llama.cpp in pure Golang!
https://github.com/gotzmann/llama.go

alpaca chatgpt dalai gpt gpt3 gpt4 gpt4all llama llama-cpp llm vicuna

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llama.go is like llama.cpp in pure Golang!

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README 

        
![](./assets/images/terminal.png?raw=true)



## Looking for LLM Debug and Inference with Golang?



Please check out my related project **[Large Model Collider](https://github.com/gotzmann/collider)**



## Motivation



We dream of a world where fellow ML hackers are grokking **REALLY BIG GPT** models in their homelabs without having GPU clusters consuming a shit tons of **$$$**.



The code of the project is based on the legendary **[ggml.cpp](https://github.com/ggerganov/llama.cpp)** framework of Georgi Gerganov written in C++ with the same attitude to performance and elegance.



We hope using Golang instead of *soo-powerful* but *too-low-level* language will allow much greater adoption.



## V0 Roadmap



- [x] Tensor math in pure Golang

- [x] Implement LLaMA neural net architecture and model loading

- [x] Test with smaller LLaMA-7B model

- [x] Be sure Go inference works exactly same way as C++

- [x] Let Go shine! Enable multi-threading and messaging to boost performance



## V1 Roadmap - Spring'23



- [x] Cross-patform compatibility with Mac, Linux and Windows

- [x] Release first stable version for ML hackers - v1.0

- [x] Enable bigger LLaMA models: 13B, 30B, 65B - v1.1

- [x] ARM NEON support on Apple Silicon (modern Macs) and ARM servers - v1.2

- [x] Performance boost with x64 AVX2 support for Intel and AMD - v1.2

- [x] Better memory use and GC optimizations - v1.3

- [x] Introduce Server Mode (embedded REST API) for use in real projects - v1.4

- [x] Release converted models for free access over the Internet - v1.4



## V2 Roadmap - Winter'23



- [ ] Support LLaMA V2 7B / 13B models architecture

- [ ] Implement LLaMA V2 34B / 70B Qrouped Query Attention

- [ ] Support modern GGUF V3 model format

- [ ] INT8 quantization to allow x4 bigger models fit same memory

- [ ] Benchmark LLaMA.go against some mainstream Python / C++ frameworks

- [ ] Enable some popular models of LLaMA family: Vicuna, Alpaca, etc

- [ ] Speed-up AVX2 with memory aligned tensors

- [ ] Extensive logging for production monitoring

- [ ] Interactive mode for real-time chat with GPT

- [ ] Automatic CPU / GPU features detection

- [ ] Implement metrics for RAM and CPU usage

- [ ] Standalone GUI or web interface for better access to framework

- [ ] Support popular open models: Open Assistant, StableLM, BLOOM, Anthropic, etc.

- [ ] AVX512 support - yet another performance boost for AMD Epyc and Intel Sapphire Rapids

- [ ] Nvidia GPUs support (CUDA or Tensor Cores)



## V3 Roadmap - Spring'23



- [ ] Allow plugins and external APIs for complex projects

- [ ] Allow model training and fine-tuning

- [ ] Speed up execution on GPU cards and clusters

- [ ] FP16 and BF16 math if hardware support is there

- [ ] INT4 and GPTQ quantization 

- [ ] AMD Radeon GPUs support with OpenCL



## How to Run?



First, obtain and convert original LLaMA models on your own, or just download ready-to-rock ones:



**LLaMA-7B:** [llama-7b-fp32.bin](https://nogpu.com/llama-7b-fp32.bin)



**LLaMA-13B:** [llama-13b-fp32.bin](https://nogpu.com/llama-13b-fp32.bin)



Both models store FP32 weights, so you'll needs at least 32Gb of RAM (not VRAM or GPU RAM) for LLaMA-7B. Double to 64Gb for LLaMA-13B.



Next, build app binary from sources (see instructions below), or just download already built one:



**Windows:** [llama-go-v1.4.0.exe](./builds/llama-go-v1.4.0.exe)



**MacOS:** [llama-go-v1.4.0-macos](./builds/llama-go-v1.4.0-macos)



**Linux:** [llama-go-v1.4.0-linux](./builds/llama-go-v1.4.0-linux)



So now you have both executable and model, go try it for yourself:



```shell

llama-go-v1.4.0-macos \

    --model ~/models/llama-7b-fp32.bin \

    --prompt "Why Golang is so popular?" \

```



## Useful command line flags:



```shell

--prompt   Text prompt from user to feed the model input

--model    Path and file name of converted .bin LLaMA model [ llama-7b-fp32.bin, etc ]

--server   Start in Server Mode acting as REST API endpoint

--host     Host to allow requests from in Server Mode [ localhost by default ]

--port     Port listen to in Server Mode [ 8080 by default ]

--pods     Maximum pods or units of parallel execution allowed in Server Mode [ 1 by default ]

--threads  Adjust to the number of CPU cores you want to use [ all cores by default ]

--context  Context size in tokens [ 1024 by default ]

--predict  Number of tokens to predict [ 512 by default ]

--temp     Model temperature hyper parameter [ 0.5 by default ]

--silent   Hide welcome logo and other output [ shown by default ]

--chat     Chat with user in interactive mode instead of compute over static prompt

--profile  Profe CPU performance while running and store results to cpu.pprof file

--avx      Enable x64 AVX2 optimizations for Intel and AMD machines

--neon     Enable ARM NEON optimizations for Apple Macs and ARM server

```



## Going Production



LLaMA.go embeds standalone HTTP server exposing REST API. To enable it, run app with special flags:



```shell

llama-go-v1.4.0-macos \

    --model ~/models/llama-7b-fp32.bin \

    --server \

    --host 127.0.0.1 \

    --port 8080 \

    --pods 4 \

    --threads 4

```



Depending on the model size, how many CPU cores available there, how many requests you want to process in parallel, how fast you'd like to get answers, choose **pods** and **threads** parameters wisely.



**Pods** is a number of inference instances that might run in parallel.



**Threads** parameter sets how many cores will be used for tensor math within a pod.



So for example if you have machine with 16 hardware cores capable running 32 hyper-threads in parallel, you might end up with something like that: 



```shell

--server --pods 4 --threads 8

```



When there is no free pod to handle arriving request, it will be placed into the waiting queue and started when some pod gets job finished.



# REST API examples



## Place new job



Send POST request (with Postman) to your server address with JSON containing unique UUID v4 and prompt:



```json

{

    "id": "5fb8ebd0-e0c9-4759-8f7d-35590f6c9fc3",

    "prompt": "Why Golang is so popular?"

}

```



## Check job status



Send GET request (with Postman or browser) to URL like http://host:port/jobs/status/:id



```shell

GET http://localhost:8080/jobs/status/5fb8ebd0-e0c9-4759-8f7d-35590f6c9fcb

```



## Get the results



Send GET request (with Postman or browser) to  URL like http://host:port/jobs/:id



```shell

GET http://localhost:8080/jobs/5fb8ebd0-e0c9-4759-8f7d-35590f6c9fcb

```



# How to build



First, install **Golang** and **git** (you'll need to download installers in case of Windows). 



```shell

brew install git

brew install golang

```



Then clone the repo and enter the project folder:



```

git clone https://github.com/gotzmann/llama.go.git

cd llama.go

```



Some Go magic to install external dependencies:



```

go mod tidy

go mod vendor

```



Now we are ready to build the binary from the source code:



```shell

go build -o llama-go-v1.exe -ldflags "-s -w" main.go

```



## FAQ



**1) From where I might obtain original LLaMA models?**



Contact Meta directly or just look around for some torrent alternatives.



**2) How to convert original LLaMA files into supported format?** 



Place original PyTorch FP16 files into **models** directory, then convert with command:



```shell

python3 ./scripts/convert.py ~/models/LLaMA/7B/ 0

```