Run Llama-2-13B-chat locally on your M1/M2 Mac with GPU inference. Uses 10GB RAM. UPDATE: see https://twitter.com/simonw/status/1691495807319674880?s=20

llama2-mac-gpu.sh

# Clone llama.cpp
git clone https://github.com/ggerganov/llama.cpp.git
cd llama.cpp

# Build it
make clean
LLAMA_METAL=1 make

# Download model
export MODEL=llama-2-13b-chat.ggmlv3.q4_0.bin
wget "https://huggingface.co/TheBloke/Llama-2-13B-chat-GGML/resolve/main/${MODEL}"

# Run
echo "Prompt: " \
    && read PROMPT \
    && ./main \
        --threads 8 \
        --n-gpu-layers 1 \
        --model ${MODEL} \
        --color \
        --ctx-size 2048 \
        --temp 0.7 \
        --repeat_penalty 1.1 \
        --n-predict -1 \
        --prompt "[INST] ${PROMPT} [/INST]"

@AmoghM Try make clean && LLAMA_METAL=1 make and then run ./main ... again

@AmoghM Try make clean && LLAMA_METAL=1 make and then run ./main ... again

@adrienbrault Thanks, that worked!

Nice work!

And it can be used by simply calling the bash examples/chat-13B.sh at the last step.

Besides, is there a way to download the 70B model and 70B-chat model? Thanks!

Yes, "The Bloke" published them on hugging face: https://huggingface.co/TheBloke/Llama-2-70B-Chat-GGML

I recomment not downloading via browser, use j downloader or anything like this instead. Maybe even commandline tools are better when it comes to downloading files of that size.

I recomment not downloading via browser, use j downloader or anything like this instead. Maybe even commandline tools are better when it comes to downloading files of that size.

here its using wget using the commandline & not via the huggingface browser ui. so its all good right, or did I not get your point?

everyone, my need is to generate embeddings with llama2:
the examples/embedding/embedding.cpp list the 2048 token limit:

if (params.n_ctx > 2048) {
        fprintf(stderr, "%s: warning: model might not support context sizes greater than 2048 tokens (%d specified);"
                "expect poor results\n", __func__, params.n_ctx);
    }

but the llama2 has 4096 context length, on building it, we get embedding file just like the main file & more, so i was not sure if we need to edit that. to 4096?

any help is really appreciated. thanks.

Getting the following error loading model:

main: build = 1154 (3358c38)
main: seed  = 1693681287
gguf_init_from_file: invalid magic number 67676a74
error loading model: llama_model_loader: failed to load model from llama-2-13b-chat.ggmlv3.q4_0.bin

llama_load_model_from_file: failed to load model
llama_init_from_gpt_params: error: failed to load model 'llama-2-13b-chat.ggmlv3.q4_0.bin'

Does anyone know how to fix this?

Same issue :(

Getting the following error loading model:

main: build = 1154 (3358c38)
main: seed  = 1693681287
gguf_init_from_file: invalid magic number 67676a74
error loading model: llama_model_loader: failed to load model from llama-2-13b-chat.ggmlv3.q4_0.bin

llama_load_model_from_file: failed to load model
llama_init_from_gpt_params: error: failed to load model 'llama-2-13b-chat.ggmlv3.q4_0.bin'

Does anyone know how to fix this?

Same issue here also! Did something change? I'm a noob, so no idea what a magic number is.

There's a similar error reported in the Python bindings for llama.cpp. Sounds like need to wait for a new model format to be available. In the meantime, a temporary workaround is to checkout an older release of llama.cpp, for example:

git checkout 1aa18ef

Which is for this release from Jul 25.

Then run the build again.

Thanks for above.

I was running into an error:

error loading model: failed to open --color: No such file or directory
llama_load_model_from_file: failed to load model
llama_init_from_gpt_params: error: failed to load model '--color'
main: error: unable to load model

Deleted everything and then ran:

git clone https://github.com/ggerganov/llama.cpp.git
cd llama.cpp
git reset --hard 1aa18ef

Then ran the rest of gist and it worked again.

Yeah, latest llama.cpp is no longer compatible with GGML models. The new model format, GGUF, was merged recently. As far as llama.cpp is concerned, GGML is now dead

https://huggingface.co/TheBloke/vicuna-13B-v1.5-16K-GGML/discussions/6#64e5ba63a9a5eabaa6fd4a04

Replacing the GGML model with a GGUF model
https://huggingface.co/TheBloke/Llama-2-7b-Chat-GGUF/blob/main/llama-2-7b-chat.Q8_0.gguf

You can check if it works:

PROMPT> ./main -m models/llama-2-7b-chat.Q8_0.gguf --random-prompt
snip lots of info
response to the prompt
After years of hard work and dedication, a high school teacher in Texas has been recognized for her outstanding contributions to education.
Ms. Rodriguez, a mathematics teacher at...

While having simple chat, I got segmentation fault, what happened? How to prevent this?

How is chat ui implemented? Thanks!

Does anybody know how to adjust the prompt input to include multiple lines of input before submitting the prompt?

Thanks for above.

I was running into an error:

error loading model: failed to open --color: No such file or directory
llama_load_model_from_file: failed to load model
llama_init_from_gpt_params: error: failed to load model '--color'
main: error: unable to load model

Deleted everything and then ran:

git clone https://github.com/ggerganov/llama.cpp.git
cd llama.cpp
git reset --hard 1aa18ef

Then ran the rest of gist and it worked again.

Seems to have worked once but now continues to fail. Any ideas why @smart-patrol ?

Prompt: 
How large is the sun?
main: build = 904 (1aa18ef)
main: seed  = 1700587479
error loading model: failed to open --color: No such file or directory
llama_load_model_from_file: failed to load model
llama_init_from_gpt_params: error: failed to load model '--color'
main: error: unable to load model

same issue