text-generation-webui/modules/models_settings.py

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import re
from pathlib import Path
import yaml
from modules import loaders, shared, ui
def get_model_settings_from_yamls(model):
settings = shared.model_config
model_settings = {}
for pat in settings:
if re.match(pat.lower(), model.lower()):
for k in settings[pat]:
model_settings[k] = settings[pat][k]
return model_settings
def infer_loader(model_name):
path_to_model = Path(f'{shared.args.model_dir}/{model_name}')
model_settings = get_model_settings_from_yamls(model_name)
if not path_to_model.exists():
loader = None
elif Path(f'{shared.args.model_dir}/{model_name}/quantize_config.json').exists() or ('wbits' in model_settings and type(model_settings['wbits']) is int and model_settings['wbits'] > 0):
loader = 'AutoGPTQ'
elif len(list(path_to_model.glob('*ggml*.bin'))) > 0:
loader = 'llama.cpp'
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elif re.match(r'.*ggml.*\.bin', model_name.lower()):
loader = 'llama.cpp'
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elif re.match(r'.*rwkv.*\.pth', model_name.lower()):
loader = 'RWKV'
else:
loader = 'Transformers'
return loader
# UI: update the command-line arguments based on the interface values
def update_model_parameters(state, initial=False):
elements = ui.list_model_elements() # the names of the parameters
gpu_memories = []
for i, element in enumerate(elements):
if element not in state:
continue
value = state[element]
if element.startswith('gpu_memory'):
gpu_memories.append(value)
continue
if initial and vars(shared.args)[element] != vars(shared.args_defaults)[element]:
continue
# Setting null defaults
if element in ['wbits', 'groupsize', 'model_type'] and value == 'None':
value = vars(shared.args_defaults)[element]
elif element in ['cpu_memory'] and value == 0:
value = vars(shared.args_defaults)[element]
# Making some simple conversions
if element in ['wbits', 'groupsize', 'pre_layer']:
value = int(value)
elif element == 'cpu_memory' and value is not None:
value = f"{value}MiB"
if element in ['pre_layer']:
value = [value] if value > 0 else None
setattr(shared.args, element, value)
found_positive = False
for i in gpu_memories:
if i > 0:
found_positive = True
break
if not (initial and vars(shared.args)['gpu_memory'] != vars(shared.args_defaults)['gpu_memory']):
if found_positive:
shared.args.gpu_memory = [f"{i}MiB" for i in gpu_memories]
else:
shared.args.gpu_memory = None
# UI: update the state variable with the model settings
def apply_model_settings_to_state(model, state):
model_settings = get_model_settings_from_yamls(model)
if 'loader' not in model_settings:
loader = infer_loader(model)
if 'wbits' in model_settings and type(model_settings['wbits']) is int and model_settings['wbits'] > 0:
loader = 'AutoGPTQ'
# If the user is using an alternative GPTQ loader, let them keep using it
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if not (loader == 'AutoGPTQ' and state['loader'] in ['GPTQ-for-LLaMa', 'ExLlama', 'ExLlama_HF']):
state['loader'] = loader
for k in model_settings:
if k in state:
if k in ['wbits', 'groupsize']:
state[k] = str(model_settings[k])
else:
state[k] = model_settings[k]
return state
# Save the settings for this model to models/config-user.yaml
def save_model_settings(model, state):
if model == 'None':
yield ("Not saving the settings because no model is loaded.")
return
with Path(f'{shared.args.model_dir}/config-user.yaml') as p:
if p.exists():
user_config = yaml.safe_load(open(p, 'r').read())
else:
user_config = {}
model_regex = model + '$' # For exact matches
for _dict in [user_config, shared.model_config]:
if model_regex not in _dict:
_dict[model_regex] = {}
if model_regex not in user_config:
user_config[model_regex] = {}
for k in ui.list_model_elements():
if k == 'loader' or k in loaders.loaders_and_params[state['loader']]:
user_config[model_regex][k] = state[k]
shared.model_config[model_regex][k] = state[k]
output = yaml.dump(user_config, sort_keys=False)
with open(p, 'w') as f:
f.write(output)
yield (f"Settings for {model} saved to {p}")