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Changes to handle multiple line break characters

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This commit is contained in:
MB7979 2023-08-10 22:01:45 +01:00
parent 08e6dfde35
commit 94ea28c24d
1 changed files with 17 additions and 4 deletions
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21
modules/training.py
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@ -393,7 +393,8 @@ def do_train(lora_name: str, always_override: bool, save_steps: int, micro_batch
raw_text = file.read().replace('\r', '') raw_text = file.read().replace('\r', '')
cut_string = hard_cut_string.replace('\\n', '\n') cut_string = hard_cut_string.replace('\\n', '\n')
newline_token = shared.tokenizer.encode('\n')[0] newline_token = set(shared.tokenizer.encode('\n')[1:])
eos_added = 0 eos_added = 0
out_tokens = [] out_tokens = []
if add_eos_token and shared.tokenizer.eos_token_id == shared.tokenizer.bos_token_id: if add_eos_token and shared.tokenizer.eos_token_id == shared.tokenizer.bos_token_id:
@ -711,7 +712,11 @@ def do_train(lora_name: str, always_override: bool, save_steps: int, micro_batch
yield f"Done! LoRA saved to `{lora_file_path}`" yield f"Done! LoRA saved to `{lora_file_path}`"
def split_chunks(arr, size: int, step: int, max_newline_length: int, newline_token: int): def split_chunks(arr, size: int, step: int, max_newline_length: int, newline_tokens: set):
while arr and arr[1] in newline_tokens: # Skip the first token, which will be <BOS>
del arr[1]
while arr and arr[-1] in newline_tokens:
del arr[-1]
num_tokens = len(arr) num_tokens = len(arr)
split_end = num_tokens - size + step # Don't split in the last overlap split_end = num_tokens - size + step # Don't split in the last overlap
if split_end < 0: if split_end < 0:
@ -721,8 +726,8 @@ def split_chunks(arr, size: int, step: int, max_newline_length: int, newline_tok
if split_starts[index] + size > num_tokens: if split_starts[index] + size > num_tokens:
split_starts[index] = num_tokens - size + 1 split_starts[index] = num_tokens - size + 1
if max_newline_length > 0 and newline_token in arr[split_starts[index]:split_starts[index] + max_newline_length]: if max_newline_length > 0 and ( newline_tokens.intersection(arr[split_starts[index]:split_starts[index] + max_newline_length])):
first_newline = arr[split_starts[index]: split_starts[index] + max_newline_length].index(newline_token) first_newline = end_first_block(arr[split_starts[index]:],newline_tokens)
split_starts[index] += first_newline split_starts[index] += first_newline
labels = [1] * size labels = [1] * size
@ -737,6 +742,14 @@ def split_chunks(arr, size: int, step: int, max_newline_length: int, newline_tok
} }
def end_first_block(arr:list, tokens: set):
offset = 0
while arr[offset] not in tokens:
offset += 1
while arr[offset] in tokens:
offset += 1
return offset
def format_time(seconds: float): def format_time(seconds: float):
if seconds < 120: if seconds < 120:
return f"`{seconds:.0f}` seconds" return f"`{seconds:.0f}` seconds"