forked from phoenix-oss/llama-stack-mirror
530d4bdfe1
# What does this PR do? Move around bits. This makes the copies from llama-models _much_ easier to maintain and ensures we don't entangle meta-reference specific tidbits into llama-models code even by accident. Also, kills the meta-reference-quantized-gpu distro and rolls quantization deps into meta-reference-gpu. ## Test Plan ``` LLAMA_MODELS_DEBUG=1 \ with-proxy llama stack run meta-reference-gpu \ --env INFERENCE_MODEL=meta-llama/Llama-4-Scout-17B-16E-Instruct \ --env INFERENCE_CHECKPOINT_DIR=<DIR> \ --env MODEL_PARALLEL_SIZE=4 \ --env QUANTIZATION_TYPE=fp8_mixed ``` Start a server with and without quantization. Point integration tests to it using: ``` pytest -s -v tests/integration/inference/test_text_inference.py \ --stack-config http://localhost:8321 --text-model meta-llama/Llama-4-Scout-17B-16E-Instruct ```
65 lines
2.5 KiB
Python
65 lines
2.5 KiB
Python
# Copyright (c) Meta Platforms, Inc. and affiliates.
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# All rights reserved.
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#
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# This source code is licensed under the terms described in the LICENSE file in
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# the root directory of this source tree.
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from typing import Any, Dict, Optional
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from pydantic import BaseModel, field_validator
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from llama_stack.apis.inference import QuantizationConfig
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from llama_stack.providers.utils.inference import supported_inference_models
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class MetaReferenceInferenceConfig(BaseModel):
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# this is a placeholder to indicate inference model id
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# the actual inference model id is dtermined by the moddel id in the request
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# Note: you need to register the model before using it for inference
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# models in the resouce list in the run.yaml config will be registered automatically
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model: Optional[str] = None
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torch_seed: Optional[int] = None
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max_seq_len: int = 4096
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max_batch_size: int = 1
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model_parallel_size: Optional[int] = None
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# when this is False, we assume that the distributed process group is setup by someone
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# outside of this code (e.g., when run inside `torchrun`). that is useful for clients
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# (including our testing code) who might be using llama-stack as a library.
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create_distributed_process_group: bool = True
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# By default, the implementation will look at ~/.llama/checkpoints/<model> but you
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# can override by specifying the directory explicitly
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checkpoint_dir: Optional[str] = None
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quantization: Optional[QuantizationConfig] = None
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@field_validator("model")
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@classmethod
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def validate_model(cls, model: str) -> str:
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permitted_models = supported_inference_models()
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descriptors = [m.descriptor() for m in permitted_models]
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repos = [m.huggingface_repo for m in permitted_models]
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if model not in (descriptors + repos):
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model_list = "\n\t".join(repos)
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raise ValueError(f"Unknown model: `{model}`. Choose from [\n\t{model_list}\n]")
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return model
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@classmethod
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def sample_run_config(
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cls,
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model: str = "Llama3.2-3B-Instruct",
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checkpoint_dir: str = "${env.CHECKPOINT_DIR:null}",
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quantization_type: str = "${env.QUANTIZATION_TYPE:bf16}",
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model_parallel_size: str = "${env.MODEL_PARALLEL_SIZE:0}",
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**kwargs,
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) -> Dict[str, Any]:
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return {
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"model": model,
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"max_seq_len": 4096,
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"checkpoint_dir": checkpoint_dir,
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"quantization": {
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"type": quantization_type,
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},
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"model_parallel_size": model_parallel_size,
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}
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