178 lines
7.0 KiB
Python
Executable File
178 lines
7.0 KiB
Python
Executable File
import argparse
|
|
|
|
import torch
|
|
import torch.nn
|
|
|
|
from .data import get_phone_symmap
|
|
from .engines import load_engines
|
|
from .config import cfg
|
|
from .models.lora import lora_get_state_dict
|
|
from .utils.io import torch_save, torch_load
|
|
|
|
# stitches embeddings into one embedding & classifier => lm_head, for use in a HF compatible weight
|
|
def convert_to_hf( state_dict, config = None, save_path = None ):
|
|
n_tokens = 256 + (1024 * 8) + (1024 * 8) + 1
|
|
token_dim = 1024
|
|
embedding = torch.nn.Embedding(n_tokens, token_dim)
|
|
embedding.weight.requires_grad = False
|
|
|
|
def move_value(k):
|
|
v = state_dict['module'][k]
|
|
del state_dict['module'][k]
|
|
return v
|
|
|
|
separator = move_value('sep')
|
|
out_proj = move_value('classifier.weight')
|
|
text_emb = move_value('text_emb.weight')
|
|
langs_emb = move_value('langs_emb.weight')
|
|
tasks_emb = move_value('tasks_emb.weight')
|
|
tones_emb = move_value('tones_emb.weight')
|
|
|
|
proms_emb_weight = [ move_value(f'proms_emb.weight.{i}').item() for i in range(8) ] if "proms_emb.weight.0" in state_dict['module'] else [ [ 1 for _ in range(8) ] ]
|
|
resps_emb_weight = [ move_value(f'resps_emb.weight.{i}').item() for i in range(8) ] if "resps_emb.weight.0" in state_dict['module'] else [ [ 1 for _ in range(8) ] ]
|
|
|
|
proms_emb = [ move_value(f'proms_emb.embeddings.{i}.weight') for i in range(8) ]
|
|
resps_emb = [ move_value(f'resps_emb.embeddings.{i}.weight') for i in range(8) ]
|
|
|
|
|
|
start = 0
|
|
for i in range(256):
|
|
embedding.weight[start + i] = text_emb[i]
|
|
|
|
start = 256
|
|
for layer in range(8):
|
|
for i in range(1024):
|
|
offset = start + 1024 * layer
|
|
embedding.weight[i + offset] = proms_emb[layer][i] * proms_emb_weight[layer]
|
|
|
|
start = 256 + 1024 * 8
|
|
for layer in range(8):
|
|
for i in range(1024):
|
|
offset = start + 1024 * layer
|
|
embedding.weight[i + offset] = resps_emb[layer][i] * proms_emb_weight[layer]
|
|
|
|
state_dict['module']['model.embed_tokens.weight'] = embedding.state_dict()
|
|
# to-do: properly recreate the output head weights or something
|
|
state_dict['module']['lm_head.weight'] = out_proj
|
|
|
|
del state_dict['module']['classifier.weight']
|
|
del state_dict['module']['classifier.bias']
|
|
|
|
return state_dict
|
|
|
|
# yanks a LoRA from the training checkpoint
|
|
def extract_lora( state_dict, config = None, save_path = None, dtype = None ):
|
|
if dtype is None:
|
|
dtype = cfg.inference.dtype
|
|
|
|
format = save_path.suffix[1:]
|
|
|
|
lora = state_dict["lora"] if "lora" in state_dict else None
|
|
# should always be included, but just in case
|
|
if lora is None and "module" in state_dict:
|
|
lora, module = lora_get_state_dict( state_dict["module"], split = True )
|
|
state_dict["module"] = module
|
|
|
|
if "lora" in state_dict:
|
|
state_dict["lora"] = None
|
|
|
|
# should raise an exception since there's nothing to extract, or at least a warning
|
|
if not lora:
|
|
return state_dict
|
|
|
|
# save lora specifically
|
|
# should probably export other attributes, similar to what SD LoRAs do
|
|
save_path = save_path.parent / f"lora.{format}"
|
|
torch_save( {
|
|
"module": lora,
|
|
"config": cfg.lora.__dict__ if cfg.lora is not None else None,
|
|
}, save_path )
|
|
|
|
return state_dict
|
|
|
|
# copies a single classifier head into multiple classifier heads per RVQ level
|
|
def split_classifier_heads( state_dict, config = cfg.model, save_path = None, dtype = None):
|
|
levels = config.max_levels
|
|
|
|
if "classifier.weight" not in state_dict['module']:
|
|
return state_dict
|
|
# copy to new AudioClassifier
|
|
for i in range(levels):
|
|
tokens = 1025 if i == 0 else 1024
|
|
|
|
# trim per RVQ level (since level 0 has a stop token)
|
|
state_dict['module'][f'classifiers.proj.{i}.weight'] = state_dict['module']['classifier.weight'][:tokens, :].clone()
|
|
state_dict['module'][f'classifiers.proj.{i}.bias'] = state_dict['module']['classifier.bias'][:tokens].clone()
|
|
|
|
# delete old weights
|
|
del state_dict['module']['classifier.weight']
|
|
del state_dict['module']['classifier.bias']
|
|
|
|
return state_dict
|
|
|
|
# converts a normal LLaMA model to a MoE model, as best as I can
|
|
def moe_ify( state_dict, config = cfg.model, save_path = None, dtype = None ):
|
|
# to-do: find a good way to pass in requested experts
|
|
experts = 8
|
|
for layer in range( config.layers ):
|
|
#state_dict[f'model.layers.{layer}.block_sparse_moe.gate.weight'] = torch.randn((config.dim, experts))
|
|
for expert in range( experts ):
|
|
state_dict['module'][f'model.layers.{layer}.block_sparse_moe.experts.{expert}.w1.weight'] = state_dict['module'][f'model.layers.{layer}.mlp.up_proj.weight'].clone()
|
|
state_dict['module'][f'model.layers.{layer}.block_sparse_moe.experts.{expert}.w2.weight'] = state_dict['module'][f'model.layers.{layer}.mlp.down_proj.weight'].clone()
|
|
state_dict['module'][f'model.layers.{layer}.block_sparse_moe.experts.{expert}.w3.weight'] = state_dict['module'][f'model.layers.{layer}.mlp.gate_proj.weight'].clone()
|
|
|
|
del state_dict['module'][f'model.layers.{layer}.mlp.up_proj.weight']
|
|
del state_dict['module'][f'model.layers.{layer}.mlp.down_proj.weight']
|
|
del state_dict['module'][f'model.layers.{layer}.mlp.gate_proj.weight']
|
|
|
|
return state_dict
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser("Save trained model to path.")
|
|
parser.add_argument("--module-only", action='store_true')
|
|
parser.add_argument("--hf", action='store_true', default=None) # convert to HF-style
|
|
parser.add_argument("--export-lora", action='store_true', default=None) # exports LoRA
|
|
parser.add_argument("--split-classifiers", action='store_true', default=None) # splits classifier heads
|
|
parser.add_argument("--moe-ify", action='store_true', default=None) # splits classifier heads
|
|
parser.add_argument("--experts", type=int, default=8) # set target dtype to export to
|
|
parser.add_argument("--dtype", type=str, default="auto") # set target dtype to export to
|
|
parser.add_argument("--format", type=str, default=cfg.weights_format) # set target format to export weights under
|
|
args, unknown = parser.parse_known_args()
|
|
|
|
if args.format.lower() not in ["sft", "safetensors", "pt", "pth"]:
|
|
raise Exception(f"Unknown requested format: {args.format}")
|
|
|
|
if args.module_only:
|
|
cfg.trainer.load_module_only = True
|
|
|
|
|
|
if args.hf and args.export_lora:
|
|
raise Exception("Requesting more than one callback")
|
|
|
|
if args.dtype != "auto":
|
|
cfg.trainer.weight_dtype = args.dtype
|
|
|
|
# necessary to ensure we are actually exporting the weights right
|
|
cfg.inference.backend = cfg.trainer.backend
|
|
|
|
engines = load_engines(training=False) # to ignore loading optimizer state
|
|
|
|
callback = None
|
|
if args.hf:
|
|
callback = convert_to_hf
|
|
elif args.export_lora:
|
|
callback = extract_lora
|
|
elif args.split_classifiers:
|
|
callback = split_classifier_heads
|
|
elif args.moe_ify:
|
|
callback = moe_ify
|
|
# set it here after the model loads to not influence which model loads
|
|
cfg.model.experts = args.experts
|
|
for name, engine in engines.items():
|
|
engine.module.config.experts = args.experts
|
|
engine.hyper_config.experts = args.experts
|
|
|
|
engines.export(userdata={"symmap": get_phone_symmap()}, callback=callback, format=args.format)
|
|
|
|
if __name__ == "__main__":
|
|
main() |