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Our fork of the ggml tensor library for machine learning

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ggml

Roadmap / Manifesto

Tensor library for machine learning

Note that this project is under active development.
Some of the development is currently happening in the llama.cpp and whisper.cpp repos

Features

  • Written in C
  • 16-bit float support
  • Integer quantization support (4-bit, 5-bit, 8-bit, etc.)
  • Automatic differentiation
  • ADAM and L-BFGS optimizers
  • Optimized for Apple Silicon
  • On x86 architectures utilizes AVX / AVX2 intrinsics
  • No third-party dependencies
  • Zero memory allocations during runtime

Updates

Whisper inference (example)

With ggml you can efficiently run Whisper inference on the CPU.

Memory requirements:

Model Disk Mem
tiny 75 MB ~280 MB
base 142 MB ~430 MB
small 466 MB ~1.0 GB
medium 1.5 GB ~2.6 GB
large 2.9 GB ~4.7 GB

GPT inference (example)

With ggml you can efficiently run GPT-2 and GPT-J inference on the CPU.

Here is how to run the example programs:

# Build ggml + examples
git clone https://github.com/ggerganov/ggml
cd ggml
mkdir build && cd build
cmake ..
make -j4 gpt-2 gpt-j

# Run the GPT-2 small 117M model
../examples/gpt-2/download-ggml-model.sh 117M
./bin/gpt-2 -m models/gpt-2-117M/ggml-model.bin -p "This is an example"

# Run the GPT-J 6B model (requires 12GB disk space and 16GB CPU RAM)
../examples/gpt-j/download-ggml-model.sh 6B
./bin/gpt-j -m models/gpt-j-6B/ggml-model.bin -p "This is an example"

# Install Python dependencies
python3 -m pip install -r ../requirements.txt

# Run the Cerebras-GPT 111M model
# Download from: https://huggingface.co/cerebras
python3 ../examples/gpt-2/convert-cerebras-to-ggml.py /path/to/Cerebras-GPT-111M/
./bin/gpt-2 -m /path/to/Cerebras-GPT-111M/ggml-model-f16.bin -p "This is an example"

The inference speeds that I get for the different models on my 32GB MacBook M1 Pro are as follows:

Model Size Time / Token
GPT-2 117M 5 ms
GPT-2 345M 12 ms
GPT-2 774M 23 ms
GPT-2 1558M 42 ms
--- --- ---
GPT-J 6B 125 ms

For more information, checkout the corresponding programs in the examples folder.

Using cuBLAS

# fix the path to point to your CUDA compiler
cmake -DGGML_CUBLAS=ON -DCMAKE_CUDA_COMPILER=/usr/local/cuda-12.1/bin/nvcc ..

Using clBLAST

cmake -DGGML_CLBLAST=ON ..

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Our fork of the ggml tensor library for machine learning

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