llama-stack-mirror/llama_stack/providers/inline/inference/meta_reference/config.py
Ihar Hrachyshka 9e6561a1ec
chore: enable pyupgrade fixes (#1806)
# What does this PR do?

The goal of this PR is code base modernization.

Schema reflection code needed a minor adjustment to handle UnionTypes
and collections.abc.AsyncIterator. (Both are preferred for latest Python
releases.)

Note to reviewers: almost all changes here are automatically generated
by pyupgrade. Some additional unused imports were cleaned up. The only
change worth of note can be found under `docs/openapi_generator` and
`llama_stack/strong_typing/schema.py` where reflection code was updated
to deal with "newer" types.

Signed-off-by: Ihar Hrachyshka <ihar.hrachyshka@gmail.com>
2025-05-01 14:23:50 -07:00

68 lines
2.7 KiB
Python

# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the terms described in the LICENSE file in
# the root directory of this source tree.
from typing import Any
from pydantic import BaseModel, field_validator
from llama_stack.apis.inference import QuantizationConfig
from llama_stack.providers.utils.inference import supported_inference_models
class MetaReferenceInferenceConfig(BaseModel):
# this is a placeholder to indicate inference model id
# the actual inference model id is dtermined by the moddel id in the request
# Note: you need to register the model before using it for inference
# models in the resouce list in the run.yaml config will be registered automatically
model: str | None = None
torch_seed: int | None = None
max_seq_len: int = 4096
max_batch_size: int = 1
model_parallel_size: int | None = None
# when this is False, we assume that the distributed process group is setup by someone
# outside of this code (e.g., when run inside `torchrun`). that is useful for clients
# (including our testing code) who might be using llama-stack as a library.
create_distributed_process_group: bool = True
# By default, the implementation will look at ~/.llama/checkpoints/<model> but you
# can override by specifying the directory explicitly
checkpoint_dir: str | None = None
quantization: QuantizationConfig | None = None
@field_validator("model")
@classmethod
def validate_model(cls, model: str) -> str:
permitted_models = supported_inference_models()
descriptors = [m.descriptor() for m in permitted_models]
repos = [m.huggingface_repo for m in permitted_models]
if model not in (descriptors + repos):
model_list = "\n\t".join(repos)
raise ValueError(f"Unknown model: `{model}`. Choose from [\n\t{model_list}\n]")
return model
@classmethod
def sample_run_config(
cls,
model: str = "Llama3.2-3B-Instruct",
checkpoint_dir: str = "${env.CHECKPOINT_DIR:null}",
quantization_type: str = "${env.QUANTIZATION_TYPE:bf16}",
model_parallel_size: str = "${env.MODEL_PARALLEL_SIZE:0}",
max_batch_size: str = "${env.MAX_BATCH_SIZE:1}",
max_seq_len: str = "${env.MAX_SEQ_LEN:4096}",
**kwargs,
) -> dict[str, Any]:
return {
"model": model,
"checkpoint_dir": checkpoint_dir,
"quantization": {
"type": quantization_type,
},
"model_parallel_size": model_parallel_size,
"max_batch_size": max_batch_size,
"max_seq_len": max_seq_len,
}