Logging and Sampling outlines.processors#35
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The idea is interesting. Do we really want to increase the surface area of the library? There's a risk of spreading ourselves too thinly by adding extra code to maintain. |
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just-cameron
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Sep 9, 2024
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A few comments here and there. Was able to get this to work with a modified example:
import outlines
import outlines.processors as processors
model = outlines.models.transformers(
"openaccess-ai-collective/tiny-mistral",
)
# Create a chained logits processor
logits_processor = (
processors.sequence_logging(model.tokenizer) | # Log the generated sequence
processors.logits_logging(model.tokenizer) | # Log the raw logits
processors.regex(r"[0-9]*", model.tokenizer) | # Restrict the logits to match the pattern
processors.temperature(0.5) | # Set temperature to 0.5
processors.logits_logging(model.tokenizer) # Log the restricted, temperature-augmentent, sampled logits
)
generator = outlines.generate.base(model, logits_processor)
generator("What is your favorite number? ")We'll also need to export the base generator method, i.e. __init__.py should include this line:
from .api import SequenceGenerator
from .base import base
from .cfg import cfg
from .choice import choice
from .format import format
from .fsm import fsm
from .json import json
from .regex import regex
from .text import text| processors.logits_logging(model.tokenizer) # Log the restricted, temperature-augmentent, sampled logits | ||
| ) | ||
|
|
||
| generator = outlines.generate.base(model, logits_process) |
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Suggested change
| generator = outlines.generate.base(model, logits_process) | |
| generator = outlines.generate.text(model, logits_processor) |
- should be
logits_processor - Is
basedefined here? I haven't been able to find it (yet)
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| model = outlines.models.llamacpp( | ||
| repo_id="M4-ai/TinyMistral-248M-v2-Instruct-GGUF", | ||
| filename="TinyMistral-248M-v2-Instruct.Q4_K_M.gguf" | ||
| ) |
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This doesn't seem to work with llamacpp, but it does work with transformers:
import outlines
import outlines.processors as processors
model = outlines.models.transformers(
"openaccess-ai-collective/tiny-mistral",
)
# Create a chained logits processor
logits_processor = (
processors.sequence_logging(model.tokenizer) | # Log the generated sequence
processors.logits_logging(model.tokenizer) | # Log the raw logits
processors.regex(r"[0-9]*", model.tokenizer) | # Restrict the logits to match the pattern
processors.temperature(0.5) | # Set temperature to 0.5
processors.logits_logging(model.tokenizer) # Log the restricted, temperature-augmentent, sampled logits
)
generator = outlines.generate.base(model, logits_processor)
generator("What is your favorite number? ")The error was
Traceback (most recent call last):
File "/home/cameron/dottxt/outlines/demo-logging.py", line 16, in <module>
generator("What is your favorite number? ")
File "/home/cameron/dottxt/outlines/outlines/generate/api.py", line 503, in __call__
completions = self.model.generate(
File "/home/cameron/dottxt/outlines/outlines/models/llamacpp.py", line 288, in generate
completion = self.model(prompts, **llama_cpp_params)
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/llama_cpp/llama.py", line 1799, in __call__
return self.create_completion(
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/llama_cpp/llama.py", line 1732, in create_completion
completion: Completion = next(completion_or_chunks) # type: ignore
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/llama_cpp/llama.py", line 1216, in _create_completion
for token in self.generate(
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/llama_cpp/llama.py", line 810, in generate
token = self.sample(
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/llama_cpp/llama.py", line 704, in sample
else logits_processor(self._input_ids[: idx + 1], logits)
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/llama_cpp/llama.py", line 2250, in __call__
scores = processor(input_ids, scores)
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/torch/utils/_contextlib.py", line 116, in decorate_context
return func(*args, **kwargs)
File "/home/cameron/dottxt/outlines/outlines/processors/base_logits_processor.py", line 82, in __call__
processed_logits = self.process_logits(
File "/home/cameron/dottxt/outlines/outlines/processors/base_logits_processor.py", line 168, in process_logits
result = processor.process_logits(input_ids, result)
File "/home/cameron/dottxt/outlines/outlines/processors/logging.py", line 63, in process_logits
self.logger.info(self.tokenizer.decode(input_ids))
File "/home/cameron/dottxt/outlines/outlines/models/llamacpp.py", line 56, in decode
decoded_bytes = self.tokenizer.detokenize(token_ids)
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/llama_cpp/llama_tokenizer.py", line 52, in detokenize
return self._model.detokenize(tokens)
File "/home/cameron/dottxt/outlines/.venv/lib/python3.10/site-packages/llama_cpp/_internals.py", line 224, in detokenize
self.model, llama_cpp.llama_token(token), buffer, size, 0, special
TypeError: 'list' object cannot be interpreted as an integer| self.logger = logger | ||
| else: | ||
| self.logger = logging.getLogger("logits_logger") | ||
| self.logger.setLevel(logging.info) |
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I believe this should be
Suggested change
| self.logger.setLevel(logging.info) | |
| self.logger.setLevel(logging.INFO) |
| self.logger = logger | ||
| else: | ||
| self.logger = logging.getLogger("sequence_logger") | ||
| self.logger.setLevel(logging.info) |
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Suggested change
| self.logger.setLevel(logging.info) | |
| self.logger.setLevel(logging.INFO) |
|
Oh, also, the transformers output I think is the token indices, maybe |
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|
Thanks for the review @cpfiffer ! It's a good refresher since I haven't looked at this in a while. I'll see if I have some free time this weekend and can get this ready for review in And indeed, it is token indices. Decoded tokens would be better. |
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