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text-generation-webui/extensions/Training_PRO/script.py

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Training PRO extension (#3961)
2023-09-17 16:09:31 +02:00
import os
os.environ["WANDB_MODE"] = "offline"
# os.environ["WANDB_DISABLED"] = "true"
import json
import math
import random
import shutil
import sys
import threading
import time
import traceback
from datetime import datetime
from pathlib import Path
import gradio as gr
import torch
import transformers
from .custom_scheduler import FPSchedulerTrainer
from .matplotgraph import create_graph
from .train_utils import get_available_loras_local, precise_cut
from datasets import Dataset, load_dataset
from peft import (
LoraConfig,
get_peft_model,
prepare_model_for_kbit_training,
set_peft_model_state_dict
)
from peft.utils.other import \
TRANSFORMERS_MODELS_TO_LORA_TARGET_MODULES_MAPPING as model_to_lora_modules
from transformers.models.auto.modeling_auto import (
MODEL_FOR_CAUSAL_LM_MAPPING_NAMES
)
from modules import shared, utils
from modules.ui import create_refresh_button
from modules.evaluate import (
calculate_perplexity,
generate_markdown_table,
save_past_evaluations
)
from modules.logging_colors import logger
from modules.models import reload_model
from modules.utils import natural_keys
params = {
"display_name": "Training PRO",
"is_tab": True
}
MODEL_CLASSES = {v[1]: v[0] for v in MODEL_FOR_CAUSAL_LM_MAPPING_NAMES.items()}
PARAMETERS = ["lora_name", "always_override", "save_steps", "micro_batch_size", "batch_size", "epochs", "learning_rate", "lr_scheduler_type", "lora_rank", "lora_alpha", "lora_dropout", "cutoff_len", "dataset", "eval_dataset", "format", "eval_steps", "raw_text_file", "higher_rank_limit", "warmup_steps", "optimizer", "hard_cut_string", "train_only_after", "stop_at_loss", "add_eos_token", "min_chars", "report_to", "precize_slicing_overlap", "add_eos_token_type", "save_steps_under_loss", "add_bos_token"]
WANT_INTERRUPT = False
train_log = {}
train_template = {}
train_log_graph = []
Lora_sortedByTime = False
def ui():
with gr.Tab('Train LoRA', elem_id='lora-train-tab'):
tmp = gr.State('')
with gr.Row():
with gr.Column():
gr.Markdown("This is enhanced version of Lora Training with an alternative RAW text chunking code")
with gr.Row():
with gr.Column(scale=5):
with gr.Row():
copy_from = gr.Dropdown(label='Copy parameters from', value='None', choices=get_available_loras_local(Lora_sortedByTime), elem_classes=['slim-dropdown'])
create_refresh_button(copy_from, lambda: None, lambda: {'choices': get_available_loras_local(Lora_sortedByTime)}, 'refresh-button')
with gr.Column():
sort_byTime = gr.Checkbox(label='Sort list by Date', value=False, info='Sorts Loras by date created.', elem_classes=['no-background'])
with gr.Row():
with gr.Column(scale=5):
lora_name = gr.Textbox(label='Name', info='The name of your new LoRA file')
with gr.Column():
always_override = gr.Checkbox(label='Override Existing Files', value=False, info='If the name is the same, checking will replace the existing file, and unchecking will load and continue from it (the rank must be the same).', elem_classes=['no-background'])
with gr.Row():
with gr.Column():
lora_rank = gr.Slider(label='LoRA Rank', value=32, minimum=0, maximum=1024, step=4, info='Also called dimension count. Higher values = larger file, more content control. Smaller values = smaller file, less control. Use 4 or 8 for style, 128 or 256 to teach, 1024+ for fine-detail on big data. More VRAM is needed for higher ranks.')
lora_alpha = gr.Slider(label='LoRA Alpha', value=64, minimum=0, maximum=2048, step=4, info='This divided by the rank becomes the scaling of the LoRA. Higher means stronger. A good standard value is twice your Rank.')
batch_size = gr.Slider(label='Batch Size', value=128, minimum=0, maximum=1024, step=4, info='Global batch size. The two batch sizes together determine gradient accumulation (gradientAccum = batch / microBatch). Higher gradient accum values lead to better quality training.')
micro_batch_size = gr.Slider(label='Micro Batch Size', value=4, minimum=1, maximum=128, step=1, info='Per-device batch size (NOTE: multiple devices not yet implemented). Increasing this will increase VRAM usage.')
cutoff_len = gr.Slider(label='Cutoff Length', minimum=0, maximum=2048, value=256, step=32, info='Cutoff length for text input. Essentially, how long of a line of text to feed in at a time. Higher values require drastically more VRAM.')
with gr.Column():
save_steps = gr.Number(label='Save every n steps', value=0, info='If above 0, a checkpoint of the LoRA will be saved every time this many steps pass.')
save_steps_under_loss = gr.Slider(label='Save Loss Threshold', value=1.9, minimum=0.0, maximum=3.0, step=0.1, info='Save checkpoints only if the loss is less or equall Threshold loss. (0 = save all)')
epochs = gr.Number(label='Epochs', value=3, info='Number of times every entry in the dataset should be fed into training. So 1 means feed each item in once, 5 means feed it in five times, etc.')
learning_rate = gr.Textbox(label='Learning Rate', value='3e-4', info='In scientific notation. 3e-4 is a good starting base point. 1e-2 is extremely high, 1e-6 is extremely low.')
lr_scheduler_type = gr.Dropdown(label='LR Scheduler', value='linear', choices=['linear', 'constant', 'constant_with_warmup', 'cosine', 'cosine_with_restarts', 'polynomial', 'inverse_sqrt', 'FP_low_epoch_annealing'], info='Learning rate scheduler - defines how the learning rate changes over time. "Constant" means never change, "linear" means to go in a straight line from the learning rate down to 0, cosine follows a curve, etc.', elem_classes=['slim-dropdown'])
with gr.Accordion(label='Advanced Options', open=True):
with gr.Row():
with gr.Column():
lora_dropout = gr.Slider(label='LoRA Dropout', minimum=0.0, maximum=1.0, step=0.025, value=0.05, info='Percentage probability for dropout of LoRA layers. This can help reduce overfitting. Most users should leave at default.')
stop_at_loss = gr.Slider(label='Stop at loss', minimum=0.0, maximum=3.0, step=0.1, value=0.00, info='The process will automatically stop once the desired loss value is reached. (reasonable numbers are 1.5-1.8)')
optimizer = gr.Dropdown(label='Optimizer', value='adamw_torch', choices=['adamw_hf', 'adamw_torch', 'adamw_torch_fused', 'adamw_torch_xla', 'adamw_apex_fused', 'adafactor', 'adamw_bnb_8bit', 'adamw_anyprecision', 'sgd', 'adagrad'], info='Different optimizer implementation options, for advanced users. Effects of different options are not well documented yet.', elem_classes=['slim-dropdown'])
with gr.Column():
warmup_steps = gr.Number(label='Warmup Steps', value=100, info='For this many steps at the start, the learning rate will be lower than normal. This helps the trainer prepare the model and precompute statistics to improve the quality of training after the start.')
train_only_after = gr.Textbox(label='Train Only After', value='', info='Only consider text *after* this string in any given chunk for training. For Alpaca datasets, use "### Response:" to only train the response and ignore the input.')
add_bos_token = gr.Checkbox(label='Add BOS token', value=True, info="Adds BOS token for each dataset item")
add_eos_token = gr.Checkbox(label='Add EOS token', value=False, info="Adds EOS token for each dataset item")
add_eos_token_type = gr.Dropdown(label='EOS placement (raw text)', choices=['Every Block', 'Hard Cut Blocks Only'], value='Every Block', info='', allow_custom_value = False)
precize_slicing_overlap = gr.Checkbox(label='Overlap blocks in Raw Text', value = True, info="Adds overlapping blocks (except for Hard Cut)")
higher_rank_limit = gr.Checkbox(label='Enable higher ranks', value=False, info='If checked, changes Rank/Alpha slider above to go much higher. This will not work without a datacenter-class GPU.')
report_to = gr.Radio(label="Save detailed logs with", value="None", choices=["None", "wandb", "tensorboard"], interactive=True)
with gr.Column():
with gr.Tab(label='Formatted Dataset'):
with gr.Row():
format = gr.Dropdown(choices=utils.get_datasets('training/formats', 'json'), value='None', label='Data Format', info='The format file used to decide how to format the dataset input.', elem_classes=['slim-dropdown'])
create_refresh_button(format, lambda: None, lambda: {'choices': utils.get_datasets('training/formats', 'json')}, 'refresh-button')
with gr.Row():
dataset = gr.Dropdown(choices=utils.get_datasets('training/datasets', 'json'), value='None', label='Dataset', info='The dataset file to use for training.', elem_classes=['slim-dropdown'])
create_refresh_button(dataset, lambda: None, lambda: {'choices': utils.get_datasets('training/datasets', 'json')}, 'refresh-button')
with gr.Row():
eval_dataset = gr.Dropdown(choices=utils.get_datasets('training/datasets', 'json'), value='None', label='Evaluation Dataset', info='The (optional) dataset file used to evaluate the model after training.', elem_classes=['slim-dropdown'])
create_refresh_button(eval_dataset, lambda: None, lambda: {'choices': utils.get_datasets('training/datasets', 'json')}, 'refresh-button')
eval_steps = gr.Number(label='Evaluate every n steps', value=100, info='If an evaluation dataset is given, test it every time this many steps pass.')
with gr.Tab(label="Raw text file"):
with gr.Row():
raw_text_file = gr.Dropdown(choices=utils.get_datasets('training/datasets', 'txt'), value='None', label='Text file', info='The raw text file to use for training.', elem_classes=['slim-dropdown'])
create_refresh_button(raw_text_file, lambda: None, lambda: {'choices': utils.get_datasets('training/datasets', 'txt')}, 'refresh-button')
with gr.Row():
with gr.Column():
hard_cut_string = gr.Textbox(label='Hard Cut String', value='\\n\\n\\n', info='String that indicates a hard cut between text parts. Helps prevent unwanted overlap.')
min_chars = gr.Number(label='Ignore small blocks', value=0, info='Ignore Hard Cut blocks that have less or equal characters than this number')
with gr.Row():
start_button = gr.Button("Start LoRA Training", variant='primary')
stop_button = gr.Button("Interrupt")
output = gr.Markdown(value="Ready")
with gr.Tab('Perplexity evaluation', elem_id='evaluate-tab'):
with gr.Row():
with gr.Column():
models = gr.Dropdown(utils.get_available_models(), label='Models', multiselect=True)
evaluate_text_file = gr.Dropdown(choices=['wikitext', 'ptb', 'ptb_new'] + utils.get_datasets('training/datasets', 'txt')[1:], value='wikitext', label='Input dataset', info='The raw text file on which the model will be evaluated. The first options are automatically downloaded: wikitext, ptb, and ptb_new. The next options are your local text files under training/datasets.')
with gr.Row():
with gr.Column():
stride_length = gr.Slider(label='Stride', minimum=1, maximum=2048, value=512, step=1, info='Used to make the evaluation faster at the cost of accuracy. 1 = slowest but most accurate. 512 is a common value.')
with gr.Column():
max_length = gr.Slider(label='max_length', minimum=0, maximum=8096, value=0, step=1, info='The context for each evaluation. If set to 0, the maximum context length for the model will be used.')
with gr.Row():
start_current_evaluation = gr.Button("Evaluate loaded model")
start_evaluation = gr.Button("Evaluate selected models")
stop_evaluation = gr.Button("Interrupt")
with gr.Column():
evaluation_log = gr.Markdown(value='')
evaluation_table = gr.Dataframe(value=generate_markdown_table(), interactive=True)
with gr.Row():
save_comments = gr.Button('Save comments', elem_classes="small-button")
refresh_table = gr.Button('Refresh the table', elem_classes="small-button")
# Training events
all_params = [lora_name, always_override, save_steps, micro_batch_size, batch_size, epochs, learning_rate, lr_scheduler_type, lora_rank, lora_alpha, lora_dropout, cutoff_len, dataset, eval_dataset, format, eval_steps, raw_text_file, higher_rank_limit, warmup_steps, optimizer, hard_cut_string, train_only_after, stop_at_loss, add_eos_token, min_chars, report_to, precize_slicing_overlap, add_eos_token_type, save_steps_under_loss, add_bos_token]
copy_from.change(do_copy_params, [copy_from] + all_params, all_params)
start_button.click(do_train, all_params, output)
stop_button.click(do_interrupt, None, None, queue=False)
higher_rank_limit.change(change_rank_limit, [higher_rank_limit], [lora_rank, lora_alpha])
# Evaluation events. For some reason, the interrupt event
# doesn't work with the .then() syntax, so I write them one
# by one in this ugly but functional way.
ev = start_evaluation.click(calculate_perplexity, [models, evaluate_text_file, stride_length, max_length], evaluation_log, show_progress=False)
start_evaluation.click(generate_markdown_table, None, evaluation_table, show_progress=False)
start_current_evaluation.click(lambda: ['current model'], None, tmp)
ev_cur = start_current_evaluation.click(calculate_perplexity, [tmp, evaluate_text_file, stride_length, max_length], evaluation_log, show_progress=False)
start_current_evaluation.click(generate_markdown_table, None, evaluation_table, show_progress=False)
stop_evaluation.click(None, None, None, cancels=[ev, ev_cur], queue=False)
refresh_table.click(generate_markdown_table, None, evaluation_table, show_progress=True)
save_comments.click(
save_past_evaluations, evaluation_table, None).then(
lambda: "Comments saved.", None, evaluation_log, show_progress=False)
def reload_lora():
global Lora_sortedByTime
return gr.Dropdown.update(choices=get_available_loras_local(Lora_sortedByTime))
def global_lora_time(sort_byTime):
global Lora_sortedByTime
Lora_sortedByTime = sort_byTime
sort_byTime.change(global_lora_time, sort_byTime, None).then(reload_lora,None,copy_from)
def do_interrupt():
global WANT_INTERRUPT
WANT_INTERRUPT = True
def do_copy_params(lora_name: str, *args):
f_name = f"{shared.args.lora_dir}/{clean_path(None, lora_name)}/training_parameters.json"
if Path(f_name).is_file():
with open(f_name, 'r', encoding='utf-8') as format_file:
params: dict[str, str] = json.load(format_file)
else:
params = {}
result = list()
for i in range(0, len(PARAMETERS)):
key = PARAMETERS[i]
if key in params:
result.append(params[key])
else:
result.append(args[i])
return result
def change_rank_limit(use_higher_ranks: bool):
mult = 2 if use_higher_ranks else 1
return {"maximum": 1024 * mult, "__type__": "update"}, {"maximum": 2048 * mult, "__type__": "update"}
def clean_path(base_path: str, path: str):
"""Strips unusual symbols and forcibly builds a path as relative to the intended directory."""
path = path.replace('\\', '/').replace('..', '_')
if base_path is None:
return path
return f'{Path(base_path).absolute()}/{path}'
def backup_adapter(input_folder):
# Get the creation date of the file adapter_model.bin
try:
adapter_file = Path(f"{input_folder}/adapter_model.bin")
if adapter_file.is_file():
logger.info("Backing up existing LoRA adapter...")
creation_date = datetime.fromtimestamp(adapter_file.stat().st_ctime)
creation_date_str = creation_date.strftime("Backup-%Y-%m-%d")
# Create the new subfolder
subfolder_path = Path(f"{input_folder}/{creation_date_str}")
subfolder_path.mkdir(parents=True, exist_ok=True)
# Check if the file already exists in the subfolder
backup_adapter_file = Path(f"{input_folder}/{creation_date_str}/adapter_model.bin")
if backup_adapter_file.is_file():
print(" - Backup already exists. Skipping backup process.")
return
# Copy existing files to the new subfolder
existing_files = Path(input_folder).iterdir()
for file in existing_files:
if file.is_file():
shutil.copy2(file, subfolder_path)
except Exception as e:
print("An error occurred in backup_adapter:", str(e))
def calc_trainable_parameters(model):
trainable_params = 0
all_param = 0
for _, param in model.named_parameters():
num_params = param.numel()
# if using DS Zero 3 and the weights are initialized empty
if num_params == 0 and hasattr(param, "ds_numel"):
num_params = param.ds_numel
all_param += num_params
if param.requires_grad:
trainable_params += num_params
return trainable_params, all_param
def do_train(lora_name: str, always_override: bool, save_steps: int, micro_batch_size: int, batch_size: int, epochs: int, learning_rate: str, lr_scheduler_type: str, lora_rank: int, lora_alpha: int, lora_dropout: float, cutoff_len: int, dataset: str, eval_dataset: str, format: str, eval_steps: int, raw_text_file: str, higher_rank_limit: bool, warmup_steps: int, optimizer: str, hard_cut_string: str, train_only_after: str, stop_at_loss: float, add_eos_token: bool, min_chars: int, report_to: str, precize_slicing_overlap: bool, add_eos_token_type: str, save_steps_under_loss: float, add_bos_token: bool):
if shared.args.monkey_patch:
from alpaca_lora_4bit.monkeypatch.peft_tuners_lora_monkey_patch import (
replace_peft_model_with_int4_lora_model
)
replace_peft_model_with_int4_lora_model()
global WANT_INTERRUPT
WANT_INTERRUPT = False
# == Input validation / processing ==
yield "Preparing the input..."
lora_file_path = clean_path(None, lora_name)
if lora_file_path.strip() == '':
yield "Missing or invalid LoRA file name input."
return
lora_file_path = f"{Path(shared.args.lora_dir)}/{lora_file_path}"
actual_lr = float(learning_rate)
model_type = type(shared.model).__name__
if model_type in MODEL_CLASSES:
model_id = MODEL_CLASSES[model_type]
else:
model_id = "llama"
if model_type == "PeftModelForCausalLM":
if len(shared.lora_names) > 0:
yield "You are trying to train a LoRA while you already have another LoRA loaded. This will work, but may have unexpected effects. *(Will continue anyway in 5 seconds, press `Interrupt` to stop.)*"
logger.warning("Training LoRA over top of another LoRA. May have unexpected effects.")
else:
yield "Model ID not matched due to LoRA loading. Consider reloading base model. *(Will continue anyway in 5 seconds, press `Interrupt` to stop.)*"
logger.warning("Model ID not matched due to LoRA loading. Consider reloading base model.")
else:
yield "LoRA training has only currently been validated for LLaMA, OPT, GPT-J, and GPT-NeoX models. Unexpected errors may follow. *(Will continue anyway in 5 seconds, press `Interrupt` to stop.)*"
logger.warning(f"LoRA training has only currently been validated for LLaMA, OPT, GPT-J, and GPT-NeoX models. (Found model type: {model_type})")
time.sleep(5)
if shared.args.loader == 'GPTQ-for-LLaMa' and not shared.args.monkey_patch:
yield "LoRA training with GPTQ-for-LLaMa requires loading with `--monkey-patch`"
return
if cutoff_len <= 0 or micro_batch_size <= 0 or batch_size <= 0 or actual_lr <= 0 or lora_rank <= 0 or lora_alpha <= 0:
yield "Cannot input zeroes."
return
gradient_accumulation_steps = batch_size // micro_batch_size
shared.tokenizer.pad_token_id = 0
shared.tokenizer.padding_side = "left"
def encode(text, prepend_bos_token):
result = shared.tokenizer.encode(text, truncation=True, max_length=cutoff_len)
# Check if the first two tokens are BOS
if len(result) >= 2 and result[:2] == [shared.tokenizer.bos_token_id, shared.tokenizer.bos_token_id]:
result = result[1:]
if not prepend_bos_token and result[0] == shared.tokenizer.bos_token_id:
result = result[1:]
return result
def tokenize(prompt, append_eos_token=False, prepend_bos_token = False):
if train_only_after == '' or train_only_after not in prompt:
input_ids = encode(prompt, prepend_bos_token)
if append_eos_token and input_ids[-1] != shared.tokenizer.eos_token_id and len(input_ids) < cutoff_len:
input_ids.append(shared.tokenizer.eos_token_id)
input_ids = [shared.tokenizer.pad_token_id] * (cutoff_len - len(input_ids)) + input_ids
labels = [1] * len(input_ids)
else:
ind = prompt.index(train_only_after) + len(train_only_after)
before_tokens = encode(prompt[:ind], prepend_bos_token)
after_tokens = encode(prompt[ind:], False)
if append_eos_token and after_tokens[-1] != shared.tokenizer.eos_token_id:
after_tokens.append(shared.tokenizer.eos_token_id)
full_length = len(after_tokens) + len(before_tokens)
if full_length > cutoff_len:
after_tokens = after_tokens[:cutoff_len - len(before_tokens)]
else:
before_tokens = [shared.tokenizer.pad_token_id] * (cutoff_len - full_length) + before_tokens
input_ids = before_tokens + after_tokens
labels = [-100] * len(before_tokens) + [1] * len(after_tokens)
input_ids = torch.tensor(input_ids)
return {
"input_ids": input_ids,
"labels": labels,
"attention_mask": input_ids.ne(shared.tokenizer.pad_token_id),
}
train_template.clear()
print(f"*** LoRA: {lora_name} ***")
# END OF FPHAM SENTENCE SPLIT functions ===================
# == Prep the dataset, format, etc ==
if raw_text_file not in ['None', '']:
train_template["template_type"] = "raw_text"
logger.info("Loading raw text file dataset...")
fullpath = clean_path('training/datasets', f'{raw_text_file}')
fullpath = Path(fullpath)
if fullpath.is_dir():
logger.info('Training path directory {}'.format(raw_text_file))
raw_text = ""
file_paths = sorted(fullpath.glob('*.txt'), key=lambda path: natural_keys(path.name))
for file_path in file_paths:
if file_path.is_file():
with file_path.open('r', encoding='utf-8') as file:
raw_text += file.read().replace('\r', '')
logger.info(f"Loaded training file: {file_path.name}")
else:
with open(clean_path('training/datasets', f'{raw_text_file}.txt'), 'r', encoding='utf-8') as file:
raw_text = file.read().replace('\r', '')
# FPHAM PRECISE SLICING
if min_chars<0:
min_chars = 0
add_EOS_to_all = add_eos_token and add_eos_token_type == 'Every Block'
add_EOS_to_HC = add_eos_token and add_eos_token_type != 'Every Block'
#print (f"add_eos_token {add_eos_token}, add_EOS_to_all {add_EOS_to_all}, add_EOS_to_HC {add_EOS_to_HC}")
# == New more precise slicing on sentence boundary ==
text_chunks = precise_cut(raw_text, precize_slicing_overlap, min_chars, add_EOS_to_HC, cutoff_len, hard_cut_string)
train_data = Dataset.from_list([tokenize(x, add_EOS_to_all, add_bos_token) for x in text_chunks])
if add_EOS_to_all:
print(f"Added EOS to {len(text_chunks)} blocks")
del text_chunks
eval_data = None
else:
if dataset in ['None', '']:
yield "Missing dataset choice input, cannot continue."
return
if format in ['None', '']:
yield "Missing format choice input, cannot continue."
return
train_template["template_type"] = "dataset"
with open(clean_path('training/formats', f'{format}.json'), 'r', encoding='utf-8-sig') as formatFile:
format_data: dict[str, str] = json.load(formatFile)
# == store training prompt ==
for _, value in format_data.items():
prompt_key = f"template_{len(train_template)}"
train_template[prompt_key] = value
def generate_prompt(data_point: dict[str, str]):
for options, data in format_data.items():
if set(options.split(',')) == set(x[0] for x in data_point.items() if (type(x[1]) is str and len(x[1].strip()) > 0)):
for key, val in data_point.items():
if type(val) is str:
data = data.replace(f'%{key}%', val)
return data
raise RuntimeError(f'Data-point "{data_point}" has no keyset match within format "{list(format_data.keys())}"')
def generate_and_tokenize_prompt(data_point):
prompt = generate_prompt(data_point)
return tokenize(prompt, add_eos_token, add_bos_token)
logger.info("Loading JSON datasets...")
data = load_dataset("json", data_files=clean_path('training/datasets', f'{dataset}.json'))
train_data = data['train'].map(generate_and_tokenize_prompt, new_fingerprint='%030x' % random.randrange(16**30))
print(f"BOS: {add_bos_token} EOS: {add_eos_token}")
if eval_dataset == 'None':
eval_data = None
else:
eval_data = load_dataset("json", data_files=clean_path('training/datasets', f'{eval_dataset}.json'))
eval_data = eval_data['train'].map(generate_and_tokenize_prompt, new_fingerprint='%030x' % random.randrange(16**30))
# == We MUST reload model if it went through any previous training, even failed one ==
if shared.model_dirty_from_training:
selected_model = shared.model_name
if selected_model:
print("\033[1;31;1m(Model has been modified by previous training, it needs to be reloaded...)\033[0;37;0m")
try:
yield f"Reloading {selected_model}..."
reload_model()
if shared.model is not None:
print("Model reloaded OK, continue with training.")
else:
return f"Failed to load {selected_model}."
except:
exc = traceback.format_exc()
logger.error('Failed to reload the model.')
print(exc)
return exc.replace('\n', '\n\n')
# == Start prepping the model itself ==
if not hasattr(shared.model, 'lm_head') or hasattr(shared.model.lm_head, 'weight'):
logger.info("Getting model ready...")
prepare_model_for_kbit_training(shared.model)
# base model is now frozen and should not be reused for any other LoRA training than this one
shared.model_dirty_from_training = True
logger.info("Preparing for training...")
config = LoraConfig(
r=lora_rank,
lora_alpha=lora_alpha,
target_modules=model_to_lora_modules[model_id],
lora_dropout=lora_dropout,
bias="none",
task_type="CAUSAL_LM"
)
# == Backup the existing adapter ==
if not always_override:
backup_adapter(lora_file_path)
# == get model trainable params
model_trainable_params, model_all_params = calc_trainable_parameters(shared.model)
try:
logger.info("Creating LoRA model...")
lora_model = get_peft_model(shared.model, config)
if not always_override and Path(f"{lora_file_path}/adapter_model.bin").is_file():
logger.info("Loading existing LoRA data...")
state_dict_peft = torch.load(f"{lora_file_path}/adapter_model.bin")
set_peft_model_state_dict(lora_model, state_dict_peft)
except:
yield traceback.format_exc().replace('\n', '\n\n')
return
if shared.args.monkey_patch:
from alpaca_lora_4bit.autograd_4bit import Autograd4bitQuantLinear
from alpaca_lora_4bit.models import Linear4bitLt
for _, m in lora_model.named_modules():
if isinstance(m, Autograd4bitQuantLinear) or isinstance(m, Linear4bitLt):
if m.is_v1_model:
m.zeros = m.zeros.half()
m.scales = m.scales.half()
class Tracked():
def __init__(self):
self.current_steps = 0
self.max_steps = 0
self.did_save = False
tracked = Tracked()
actual_save_steps = math.ceil(save_steps / gradient_accumulation_steps)
class Callbacks(transformers.TrainerCallback):
def on_step_begin(self, args: transformers.TrainingArguments, state: transformers.TrainerState, control: transformers.TrainerControl, **kwargs):
tracked.current_steps = state.global_step * gradient_accumulation_steps
tracked.max_steps = state.max_steps * gradient_accumulation_steps
if WANT_INTERRUPT:
control.should_epoch_stop = True
control.should_training_stop = True
elif state.global_step > 0 and actual_save_steps > 0 and state.global_step % actual_save_steps == 0:
current_loss = float(train_log.get('loss', 0.0))
if current_loss <= save_steps_under_loss or save_steps_under_loss==0.0:
lora_model.save_pretrained(f"{lora_file_path}/checkpoint-{tracked.current_steps}/")
print(f"\033[1;30;40mStep: {tracked.current_steps:6} \033[0;37;0m Checkpoint-{tracked.current_steps} saved")
# Save log
with open(f"{lora_file_path}/checkpoint-{tracked.current_steps}/training_log.json", 'w', encoding='utf-8') as file:
json.dump(train_log, file, indent=2)
# == Save training prompt ==
with open(f"{lora_file_path}/checkpoint-{tracked.current_steps}/training_prompt.json", 'w', encoding='utf-8') as file:
json.dump(train_template, file, indent=2)
def on_substep_end(self, args: transformers.TrainingArguments, state: transformers.TrainerState, control: transformers.TrainerControl, **kwargs):
tracked.current_steps += 1
if WANT_INTERRUPT:
control.should_epoch_stop = True
control.should_training_stop = True
def on_log(self, args: transformers.TrainingArguments, state: transformers.TrainerState, control: transformers.TrainerControl, logs, **kwargs):
train_log.update(logs)
train_log.update({"current_steps": tracked.current_steps})
if WANT_INTERRUPT:
print("\033[1;31;1mInterrupted by user\033[0;37;0m")
print(f"\033[1;30;40mStep: {tracked.current_steps:6} \033[0;37;0m", end='')
entry = {
'current_steps': int(train_log.get('current_steps',0)),
'loss': float(train_log.get('loss', 0.0)),
'learning_rate': float(train_log.get('learning_rate', 0.0)),
'epoch': float(train_log.get('epoch', 0.0))
}
# Add the entry to the continuous log
train_log_graph.append(entry)
# Save the graph log for now, we can later generate full graph
with open(f"{lora_file_path}/training_graph.json", 'w') as file:
json.dump(train_log_graph, file, indent=4)
if 'loss' in logs:
loss = float(logs['loss'])
if loss <= stop_at_loss:
control.should_epoch_stop = True
control.should_training_stop = True
print(f"\033[1;31;1mStop Loss {stop_at_loss} reached.\033[0;37;0m")
# FPHAM SAMPLE REQ Transformers error handling
sample_req = int(train_data.num_rows)//micro_batch_size
if sample_req < gradient_accumulation_steps:
print(f"\033[1;31;1mWARNING: Current gradient accumulation is too high for the amount of training data.\033[0;37;0m")
print(f"Gradient accumulation: {gradient_accumulation_steps} should be less than: {sample_req}. \033[1;31;1mThis could crash Accelerate/Transformers\033[0;37;0m")
min_batchSize = sample_req*micro_batch_size
print(f"Preferable fix: \033[1;31;1mIncrease the size of dataset\033[0;37;0m")
print(f"... or Decrerase Batch Size \033[1;31;1m{batch_size}\033[0;37;0m to below {min_batchSize}")
gradient_accumulation_steps = max(1,sample_req-1)
print(f"Last resort fix for this run: Lowering Gradient accumulation to {gradient_accumulation_steps}. [Good luck]")
else:
print(f"Data Size Check: Gradient accumulation: {gradient_accumulation_steps} <= Data/Batch {sample_req} ... [OK]")
#END OF FPHAM SAMPLE REQ
# FPHAM Custom Scheduler ==
custom_scheduller = False
lr_scheduler_type_arg = lr_scheduler_type
if lr_scheduler_type == 'FP_low_epoch_annealing':
custom_scheduller = True
lr_scheduler_type_arg = 'cosine'
args=transformers.TrainingArguments(
report_to=report_to if report_to != "None" else None,
per_device_train_batch_size=micro_batch_size,
gradient_accumulation_steps=gradient_accumulation_steps,
warmup_steps=math.ceil(warmup_steps / gradient_accumulation_steps),
num_train_epochs=epochs,
learning_rate=actual_lr,
fp16=False if shared.args.cpu else True,
optim=optimizer,
logging_steps=1,
evaluation_strategy="steps" if eval_data is not None else "no",
eval_steps=math.ceil(eval_steps / gradient_accumulation_steps) if eval_data is not None else None,
save_strategy="steps" if eval_data is not None else "no",
output_dir=lora_file_path,
lr_scheduler_type=lr_scheduler_type_arg,
load_best_model_at_end=eval_data is not None,
# TODO: Enable multi-device support
ddp_find_unused_parameters=None,
no_cuda=shared.args.cpu,
)
if custom_scheduller:
trainer = FPSchedulerTrainer(
model=lora_model,
train_dataset=train_data,
eval_dataset=eval_data,
args=args,
data_collator=transformers.DataCollatorForLanguageModeling(shared.tokenizer, mlm=False),
callbacks=list([Callbacks()])
)
else:
trainer = transformers.Trainer(
model=lora_model,
train_dataset=train_data,
eval_dataset=eval_data,
args=args,
data_collator=transformers.DataCollatorForLanguageModeling(shared.tokenizer, mlm=False),
callbacks=list([Callbacks()])
)
# END OF FPHAM CUSTOM SCHEDULER
lora_model.config.use_cache = False
if torch.__version__ >= "2" and sys.platform != "win32":
lora_model = torch.compile(lora_model)
# == Save parameters for reuse ==
with open(f"{lora_file_path}/training_parameters.json", 'w', encoding='utf-8') as file:
vars = locals()
json.dump({x: vars[x] for x in PARAMETERS}, file, indent=2)
# == Save training prompt ==
with open(f"{lora_file_path}/training_prompt.json", 'w', encoding='utf-8') as file:
json.dump(train_template, file, indent=2)
# == Main run and monitor loop ==
logger.info("Starting training...")
yield "Starting..."
lora_trainable_param, lora_all_param = calc_trainable_parameters(lora_model)
projections_string = ", ".join([projection.replace("_proj", "") for projection in model_to_lora_modules[model_id]])
print(f"Training '{model_id}' model using ({projections_string}) projections")
if lora_all_param > 0:
print(f"Trainable params: {lora_trainable_param:,d} ({100 * lora_trainable_param / lora_all_param:.4f} %), All params: {lora_all_param:,d} (Model: {model_all_params:,d})")
train_log.update({"base_model_name": shared.model_name})
train_log.update({"base_model_class": shared.model.__class__.__name__})
train_log.update({"base_loaded_in_4bit": getattr(lora_model, "is_loaded_in_4bit", False)})
train_log.update({"base_loaded_in_8bit": getattr(lora_model, "is_loaded_in_8bit", False)})
train_log.update({"projections": projections_string})
if stop_at_loss > 0:
print(f"Monitoring loss \033[1;31;1m(Auto-Stop at: {stop_at_loss})\033[0;37;0m")
if WANT_INTERRUPT:
yield "Interrupted before start."
return
def log_train_dataset(trainer):
decoded_entries = []
# Try to decode the entries and write the log file
try:
# Iterate over the first 10 elements in the dataset (or fewer if there are less than 10)
for i in range(min(10, len(trainer.train_dataset))):
decoded_text = shared.tokenizer.decode(trainer.train_dataset[i]['input_ids'])
decoded_entries.append({"value": decoded_text})
# Write the log file
Path('logs').mkdir(exist_ok=True)
with open(Path('logs/train_dataset_sample.json'), 'w') as json_file:
json.dump(decoded_entries, json_file, indent=4)
logger.info("Log file 'train_dataset_sample.json' created in the 'logs' directory.")
except Exception as e:
logger.error(f"Failed to create log file due to error: {e}")
def threaded_run():
log_train_dataset(trainer)
trainer.train()
# Note: save in the thread in case the gradio thread breaks (eg browser closed)
lora_model.save_pretrained(lora_file_path)
logger.info("LoRA training run is completed and saved.")
# Save log
with open(f"{lora_file_path}/training_log.json", 'w', encoding='utf-8') as file:
json.dump(train_log, file, indent=2)
thread = threading.Thread(target=threaded_run)
thread.start()
last_step = 0
start_time = time.perf_counter()
while thread.is_alive():
time.sleep(0.5)
if WANT_INTERRUPT:
yield "Interrupting, please wait... *(Run will stop after the current training step completes.)*"
elif tracked.current_steps != last_step:
last_step = tracked.current_steps
time_elapsed = time.perf_counter() - start_time
if time_elapsed <= 0:
timer_info = ""
total_time_estimate = 999
else:
its = tracked.current_steps / time_elapsed
if its > 1:
timer_info = f"`{its:.2f}` it/s"
else:
timer_info = f"`{1.0/its:.2f}` s/it"
total_time_estimate = (1.0 / its) * (tracked.max_steps)
yield f"Running... **{tracked.current_steps}** / **{tracked.max_steps}** ... {timer_info}, {format_time(time_elapsed)} / {format_time(total_time_estimate)} ... {format_time(total_time_estimate - time_elapsed)} remaining"
# Saving in the train thread might fail if an error occurs, so save here if so.
if not tracked.did_save:
logger.info("Training complete, saving...")
lora_model.save_pretrained(lora_file_path)
if WANT_INTERRUPT:
logger.info("Training interrupted.")
yield f"Interrupted. Incomplete LoRA saved to `{lora_file_path}`."
else:
logger.info("Training complete!")
yield f"Done! LoRA saved to `{lora_file_path}`.\n\nBefore testing your new LoRA, make sure to first reload the model, as it is currently dirty from training."
create_graph(lora_file_path, lora_name)
def format_time(seconds: float):
if seconds < 120:
return f"`{seconds:.0f}` seconds"
minutes = seconds / 60
if minutes < 120:
return f"`{minutes:.0f}` minutes"
hours = minutes / 60
return f"`{hours:.0f}` hours"
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