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llama.cpp/convert-pth-to-ggml.py

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py : new conversion script (#545) Current status: Working, except for the latest GPTQ-for-LLaMa format that includes `g_idx`. This turns out to require changes to GGML, so for now it only works if you use the `--outtype` option to dequantize it back to f16 (which is pointless except for debugging). I also included some cleanup for the C++ code. This script is meant to replace all the existing conversion scripts (including the ones that convert from older GGML formats), while also adding support for some new formats. Specifically, I've tested with: - [x] `LLaMA` (original) - [x] `llama-65b-4bit` - [x] `alpaca-native` - [x] `alpaca-native-4bit` - [x] LLaMA converted to 'transformers' format using `convert_llama_weights_to_hf.py` - [x] `alpaca-native` quantized with `--true-sequential --act-order --groupsize 128` (dequantized only) - [x] same as above plus `--save_safetensors` - [x] GPT4All - [x] stock unversioned ggml - [x] ggmh There's enough overlap in the logic needed to handle these different cases that it seemed best to move to a single script. I haven't tried this with Alpaca-LoRA because I don't know where to find it. Useful features: - Uses multiple threads for a speedup in some cases (though the Python GIL limits the gain, and sometimes it's disk-bound anyway). - Combines split models into a single file (both the intra-tensor split of the original and the inter-tensor split of 'transformers' format files). Single files are more convenient to work with and more friendly to future changes to use memory mapping on the C++ side. To accomplish this without increasing memory requirements, it has some custom loading code which avoids loading whole input files into memory at once. - Because of the custom loading code, it no longer depends in PyTorch, which might make installing dependencies slightly easier or faster... although it still depends on NumPy and sentencepiece, so I don't know if there's any meaningful difference. In any case, I also added a requirements.txt file to lock the dependency versions in case of any future breaking changes. - Type annotations checked with mypy. - Some attempts to be extra user-friendly: - The script tries to be forgiving with arguments, e.g. you can specify either the model file itself or the directory containing it. - The script doesn't depend on config.json / params.json, just in case the user downloaded files individually and doesn't have those handy. But you still need tokenizer.model and, for Alpaca, added_tokens.json. - The script tries to give a helpful error message if added_tokens.json is missing.
2023-04-14 00:03:03 -07:00
# Compatibility stub
Add tokenizer test + revert to C++11 (#355) * Add test-tokenizer-0 to do a few tokenizations - feel free to expand * Added option to convert-pth-to-ggml.py script to dump just the vocabulary * Added ./models/ggml-vocab.bin containing just LLaMA vocab data (used for tests) * Added utility to load vocabulary file from previous point (temporary implementation) * Avoid using std::string_view and drop back to C++11 (hope I didn't break something) * Rename gpt_vocab -> llama_vocab * All CMake binaries go into ./bin/ now
2023-03-21 17:29:41 +02:00
Refactoring `convert-pth-to-ggml.py`: more concise and readable (#109) * Refactor get_n_parts function to simplify code and improve readability * Use f-strings instead of concatenation * Refactoring: more concise and readable * modularize --------- Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
2023-03-19 20:17:39 +03:00
import argparse
Add tokenizer test + revert to C++11 (#355) * Add test-tokenizer-0 to do a few tokenizations - feel free to expand * Added option to convert-pth-to-ggml.py script to dump just the vocabulary * Added ./models/ggml-vocab.bin containing just LLaMA vocab data (used for tests) * Added utility to load vocabulary file from previous point (temporary implementation) * Avoid using std::string_view and drop back to C++11 (hope I didn't break something) * Rename gpt_vocab -> llama_vocab * All CMake binaries go into ./bin/ now
2023-03-21 17:29:41 +02:00
py : new conversion script (#545) Current status: Working, except for the latest GPTQ-for-LLaMa format that includes `g_idx`. This turns out to require changes to GGML, so for now it only works if you use the `--outtype` option to dequantize it back to f16 (which is pointless except for debugging). I also included some cleanup for the C++ code. This script is meant to replace all the existing conversion scripts (including the ones that convert from older GGML formats), while also adding support for some new formats. Specifically, I've tested with: - [x] `LLaMA` (original) - [x] `llama-65b-4bit` - [x] `alpaca-native` - [x] `alpaca-native-4bit` - [x] LLaMA converted to 'transformers' format using `convert_llama_weights_to_hf.py` - [x] `alpaca-native` quantized with `--true-sequential --act-order --groupsize 128` (dequantized only) - [x] same as above plus `--save_safetensors` - [x] GPT4All - [x] stock unversioned ggml - [x] ggmh There's enough overlap in the logic needed to handle these different cases that it seemed best to move to a single script. I haven't tried this with Alpaca-LoRA because I don't know where to find it. Useful features: - Uses multiple threads for a speedup in some cases (though the Python GIL limits the gain, and sometimes it's disk-bound anyway). - Combines split models into a single file (both the intra-tensor split of the original and the inter-tensor split of 'transformers' format files). Single files are more convenient to work with and more friendly to future changes to use memory mapping on the C++ side. To accomplish this without increasing memory requirements, it has some custom loading code which avoids loading whole input files into memory at once. - Because of the custom loading code, it no longer depends in PyTorch, which might make installing dependencies slightly easier or faster... although it still depends on NumPy and sentencepiece, so I don't know if there's any meaningful difference. In any case, I also added a requirements.txt file to lock the dependency versions in case of any future breaking changes. - Type annotations checked with mypy. - Some attempts to be extra user-friendly: - The script tries to be forgiving with arguments, e.g. you can specify either the model file itself or the directory containing it. - The script doesn't depend on config.json / params.json, just in case the user downloaded files individually and doesn't have those handy. But you still need tokenizer.model and, for Alpaca, added_tokens.json. - The script tries to give a helpful error message if added_tokens.json is missing.
2023-04-14 00:03:03 -07:00
import convert
Initial release
2023-03-10 20:40:58 +02:00
py : new conversion script (#545) Current status: Working, except for the latest GPTQ-for-LLaMa format that includes `g_idx`. This turns out to require changes to GGML, so for now it only works if you use the `--outtype` option to dequantize it back to f16 (which is pointless except for debugging). I also included some cleanup for the C++ code. This script is meant to replace all the existing conversion scripts (including the ones that convert from older GGML formats), while also adding support for some new formats. Specifically, I've tested with: - [x] `LLaMA` (original) - [x] `llama-65b-4bit` - [x] `alpaca-native` - [x] `alpaca-native-4bit` - [x] LLaMA converted to 'transformers' format using `convert_llama_weights_to_hf.py` - [x] `alpaca-native` quantized with `--true-sequential --act-order --groupsize 128` (dequantized only) - [x] same as above plus `--save_safetensors` - [x] GPT4All - [x] stock unversioned ggml - [x] ggmh There's enough overlap in the logic needed to handle these different cases that it seemed best to move to a single script. I haven't tried this with Alpaca-LoRA because I don't know where to find it. Useful features: - Uses multiple threads for a speedup in some cases (though the Python GIL limits the gain, and sometimes it's disk-bound anyway). - Combines split models into a single file (both the intra-tensor split of the original and the inter-tensor split of 'transformers' format files). Single files are more convenient to work with and more friendly to future changes to use memory mapping on the C++ side. To accomplish this without increasing memory requirements, it has some custom loading code which avoids loading whole input files into memory at once. - Because of the custom loading code, it no longer depends in PyTorch, which might make installing dependencies slightly easier or faster... although it still depends on NumPy and sentencepiece, so I don't know if there's any meaningful difference. In any case, I also added a requirements.txt file to lock the dependency versions in case of any future breaking changes. - Type annotations checked with mypy. - Some attempts to be extra user-friendly: - The script tries to be forgiving with arguments, e.g. you can specify either the model file itself or the directory containing it. - The script doesn't depend on config.json / params.json, just in case the user downloaded files individually and doesn't have those handy. But you still need tokenizer.model and, for Alpaca, added_tokens.json. - The script tries to give a helpful error message if added_tokens.json is missing.
2023-04-14 00:03:03 -07:00
parser = argparse.ArgumentParser(description='Convert a LLaMA model checkpoint to a ggml compatible file')
parser.add_argument('dir_model', help='directory containing the model checkpoint')
parser.add_argument('ftype', help='file type (0: float32, 1: float16)', type=int, choices=[0, 1], default=1)
args = parser.parse_args()
convert.main(['--outtype', 'f16' if args.ftype == 1 else 'f32', '--', args.dir_model])
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