diff options
Diffstat (limited to 'convert-llama-ggml-to-gguf.py')
| -rwxr-xr-x | convert-llama-ggml-to-gguf.py | 53 |
1 files changed, 33 insertions, 20 deletions
diff --git a/convert-llama-ggml-to-gguf.py b/convert-llama-ggml-to-gguf.py index 0c123567..e359330a 100755 --- a/convert-llama-ggml-to-gguf.py +++ b/convert-llama-ggml-to-gguf.py @@ -14,11 +14,13 @@ if 'NO_LOCAL_GGUF' not in os.environ: sys.path.insert(1, str(Path(__file__).parent / 'gguf-py')) import gguf + class GGMLFormat(IntEnum): GGML = 0 GGMF = 1 GGJT = 2 + class GGMLFType(IntEnum): ALL_F32 = 0 MOSTLY_F16 = 1 @@ -38,6 +40,7 @@ class GGMLFType(IntEnum): MOSTLY_Q5_K_M = 17 MOSTLY_Q6_K = 18 + class Hyperparameters: def __init__(self): self.n_vocab = self.n_embd = self.n_mult = self.n_head = 0 @@ -69,6 +72,7 @@ class Hyperparameters: def __str__(self): return f'<Hyperparameters: n_vocab={self.n_vocab}, n_embd={self.n_embd}, n_mult={self.n_mult}, n_head={self.n_head}, n_layer={self.n_layer}, n_rot={self.n_rot}, n_ff={self.n_ff}, ftype={self.ftype.name}>' + class Vocab: def __init__(self, load_scores = True): self.items = [] @@ -90,6 +94,7 @@ class Vocab: self.items.append((item_text, item_score)) return offset - orig_offset + class Tensor: def __init__(self, use_padding = True): self.name = None @@ -123,6 +128,7 @@ class Tensor: # print(n_dims, name_len, dtype, self.dims, self.name, pad) return offset - orig_offset + class GGMLModel: def __init__(self): self.hyperparameters = None @@ -159,8 +165,8 @@ class GGMLModel: if ftype not in (GGMLFType.ALL_F32, GGMLFType.MOSTLY_F16): err = 'Quantizations changed in GGJTv2. Can only convert unquantized GGML files older than GGJTv2.' elif (self.file_format == GGMLFormat.GGJT and self.format_version == 2): - if ftype in ( GGMLFType.MOSTLY_Q4_0, GGMLFType.MOSTLY_Q4_1, - GGMLFType.MOSTLY_Q4_1_SOME_F16, GGMLFType.MOSTLY_Q8_0): + if ftype in (GGMLFType.MOSTLY_Q4_0, GGMLFType.MOSTLY_Q4_1, + GGMLFType.MOSTLY_Q4_1_SOME_F16, GGMLFType.MOSTLY_Q8_0): err = 'Q4 and Q8 quantizations changed in GGJTv3.' if len(err) > 0: raise ValueError(f'{err} Sorry, your {self.file_format.name}v{self.format_version} file of type {ftype.name} is not eligible for conversion.') @@ -187,6 +193,7 @@ class GGMLModel: hp.set_n_ff(self) return offset + class GGMLToGGUF: def __init__(self, ggml_model, data, cfg, params_override = None, vocab_override = None, special_vocab = None): hp = ggml_model.hyperparameters @@ -217,7 +224,7 @@ class GGMLToGGUF: gguf_writer = gguf.GGUFWriter( self.cfg.output, gguf.MODEL_ARCH_NAMES[gguf.MODEL_ARCH.LLAMA], - use_temp_file = False ) + use_temp_file = False) self.add_params(gguf_writer) self.add_vocab(gguf_writer) if self.special_vocab is not None: @@ -341,7 +348,8 @@ class GGMLToGGUF: mapped_name, data[tensor.start_offset:tensor.start_offset + tensor.len_bytes], raw_shape = tempdims, - raw_dtype = tensor.dtype ) + raw_dtype = tensor.dtype) + def handle_metadata(cfg, hp): import convert @@ -365,38 +373,40 @@ def handle_metadata(cfg, hp): raise ValueError('Unable to load metadata') vocab = convert.load_vocab( cfg.vocab_dir if cfg.vocab_dir is not None else cfg.model_metadata_dir, - cfg.vocabtype ) + cfg.vocabtype) # FIXME: Respect cfg.vocab_dir? svocab = gguf.SpecialVocab(cfg.model_metadata_dir, - load_merges = cfg.vocabtype == 'bpe', - n_vocab = vocab.vocab_size) + load_merges = cfg.vocabtype == 'bpe', + n_vocab = vocab.vocab_size) convert.check_vocab_size(params, vocab) return (params, vocab, svocab) + def handle_args(): parser = argparse.ArgumentParser(description = 'Convert GGML models to GGUF') parser.add_argument('--input', '-i', type = Path, required = True, - help = 'Input GGMLv3 filename') + help = 'Input GGMLv3 filename') parser.add_argument('--output', '-o', type = Path, required = True, - help ='Output GGUF filename') + help ='Output GGUF filename') parser.add_argument('--name', - help = 'Set model name') + help = 'Set model name') parser.add_argument('--desc', - help = 'Set model description') + help = 'Set model description') parser.add_argument('--gqa', type = int, default = 1, - help = 'grouped-query attention factor (use 8 for LLaMA2 70B)') + help = 'grouped-query attention factor (use 8 for LLaMA2 70B)') parser.add_argument('--eps', default = '5.0e-06', - help = 'RMS norm eps: Use 1e-6 for LLaMA1 and OpenLLaMA, use 1e-5 for LLaMA2') + help = 'RMS norm eps: Use 1e-6 for LLaMA1 and OpenLLaMA, use 1e-5 for LLaMA2') parser.add_argument('--context-length', '-c', type=int, default = 2048, - help = 'Default max context length: LLaMA1 is typically 2048, LLaMA2 is typically 4096') + help = 'Default max context length: LLaMA1 is typically 2048, LLaMA2 is typically 4096') parser.add_argument('--model-metadata-dir', '-m', type = Path, - help ='Load HuggingFace/.pth vocab and metadata from the specified directory') + help ='Load HuggingFace/.pth vocab and metadata from the specified directory') parser.add_argument("--vocab-dir", type=Path, - help="directory containing tokenizer.model, if separate from model file - only meaningful with --model-metadata-dir") + help="directory containing tokenizer.model, if separate from model file - only meaningful with --model-metadata-dir") parser.add_argument("--vocabtype", choices=["spm", "bpe"], default="spm", - help="vocab format - only meaningful with --model-metadata-dir and/or --vocab-dir (default: spm)") + help="vocab format - only meaningful with --model-metadata-dir and/or --vocab-dir (default: spm)") return parser.parse_args() + def main(): cfg = handle_args() print(f'* Using config: {cfg}') @@ -406,7 +416,7 @@ def main(): data = np.memmap(cfg.input, mode = 'r') model = GGMLModel() print('* Scanning GGML input file') - offset = model.load(data, 0) + offset = model.load(data, 0) # noqa print(f'* GGML model hyperparameters: {model.hyperparameters}') vocab_override = None params_override = None @@ -421,12 +431,15 @@ def main(): print('\n=== WARNING === Special tokens may not be converted correctly. Use --model-metadata-dir if possible === WARNING ===\n') if model.file_format == GGMLFormat.GGML: print('! This is a very old GGML file that does not contain vocab scores. Strongly recommend using model metadata!') - converter = GGMLToGGUF(model, data, cfg, + converter = GGMLToGGUF( + model, data, cfg, params_override = params_override, vocab_override = vocab_override, - special_vocab = special_vocab ) + special_vocab = special_vocab + ) converter.save() print(f'* Successful completion. Output saved to: {cfg.output}') + if __name__ == '__main__': main() |