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# -------------------------------------------------------------------------
# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.
# --------------------------------------------------------------------------
# pylint: disable=import-outside-toplevel
from __future__ import annotations
from typing import Any, Sequence
import torch
import onnxscript.tools.transformers_models
def _prepare_config_and_inputs(
batch_size: int,
seq_length: int,
vocab_size: int,
type_sequence_label_size: int = 2,
type_vocab_size: int = 16,
num_labels: int = 3,
num_choices: int = 4,
use_input_mask: bool = False,
use_token_type_ids: bool = False,
use_labels: bool = False,
) -> tuple[Any, ...]:
input_ids = onnxscript.tools.transformers_models.ids_tensor(
[batch_size, seq_length], vocab_size
)
input_mask = None
if use_input_mask:
input_mask = torch.tril(torch.ones(batch_size, seq_length))
token_type_ids = None
if use_token_type_ids:
assert type_vocab_size > 0, "type_vocab_size is null"
token_type_ids = onnxscript.tools.transformers_models.ids_tensor(
[batch_size, seq_length], type_vocab_size
)
sequence_labels = None
token_labels = None
choice_labels = None
if use_labels:
assert type_sequence_label_size > 0, "type_sequence_label_size is null"
assert num_labels > 0, "num_labels is null"
assert num_choices > 0, "num_choices is null"
sequence_labels = onnxscript.tools.transformers_models.ids_tensor(
[batch_size], type_sequence_label_size
)
token_labels = onnxscript.tools.transformers_models.ids_tensor(
[batch_size, seq_length], num_labels
)
choice_labels = onnxscript.tools.transformers_models.ids_tensor(
[batch_size], num_choices
)
return (
input_ids,
token_type_ids,
input_mask,
sequence_labels,
token_labels,
choice_labels,
)
def get_phi_model(
input_dims: Sequence[tuple[int, int]] = ((13, 7), (14, 7), (15, 8)),
hidden_size: int = 32,
num_hidden_layers: int = 2,
vocab_size: int = 99,
intermediate_size: int = 16,
max_position_embeddings: int = 512,
num_attention_heads: int = 4,
num_key_value_heads: int = 2,
_attn_implementation: str = "eager", # needed value to remove graph breaks
with_mask: bool = True,
) -> tuple[Any, list[tuple[torch.Tensor, ...]], dict]:
"""
Returns a model.
See `PhiConfig
<https://huggingface.co/docs/transformers/main/en/model_doc/phi#transformers.PhiConfig>`_.
The parameters are chosen for a unit test configuration from `test_modeling_phi.py
<https://github.com/huggingface/transformers/blob/main/tests/models/phi/test_modeling_phi.py>`_.
"""
from transformers import PhiConfig
from transformers.models.phi.modeling_phi import PhiModel
dynamic_shapes = {0: {0: "batch", 1: "length"}}
if with_mask:
dynamic_shapes.update({1: {0: "batch", 1: "length"}})
config = PhiConfig(
hidden_size=hidden_size,
num_hidden_layers=num_hidden_layers,
vocab_size=vocab_size,
intermediate_size=intermediate_size,
max_position_embeddings=max_position_embeddings,
num_attention_heads=num_attention_heads,
num_key_value_heads=num_key_value_heads,
)
if _attn_implementation:
config._attn_implementation = _attn_implementation # pylint: disable=protected-access
if with_mask:
class PhiModelWrapper(torch.nn.Module):
def __init__(self, config):
super().__init__()
self.model = PhiModel(config)
def forward(self, input_ids, attention_mask):
model_output = self.model(
input_ids, attention_mask=attention_mask, use_cache=False
)
return model_output.to_tuple()
def generate_example_inputs(batch: int, seq: int, vocab_size: int):
(
input_ids,
_, # token_type_ids,
input_mask,
_, # sequence_labels,
_, # token_labels,
_, # choice_labels,
) = _prepare_config_and_inputs(
batch_size=batch,
seq_length=seq,
vocab_size=vocab_size,
use_input_mask=True,
)
return input_ids, input_mask
example_args_collection = []
for b, s in input_dims:
example_args_collection.append(generate_example_inputs(b, s, vocab_size))
return PhiModelWrapper(config), example_args_collection, dynamic_shapes
# no mask
class PhiModelWrapperNoMask(torch.nn.Module):
def __init__(self, config):
super().__init__()
self.model = PhiModel(config)
def forward(self, input_ids):
model_output = self.model(input_ids, use_cache=False)
return model_output.to_tuple()
def generate_example_inputs_no_mask(batch: int, seq: int, vocab_size: int):
(
input_ids,
_, # token_type_ids,
_, # input_mask,
_, # sequence_labels,
_, # token_labels,
_, # choice_labels,
) = _prepare_config_and_inputs(
batch_size=batch,
seq_length=seq,
vocab_size=vocab_size,
use_input_mask=True,
)
return (input_ids,)
example_args_collection = []
for b, s in input_dims:
example_args_collection.append(generate_example_inputs_no_mask(b, s, vocab_size))
return PhiModelWrapperNoMask(config), example_args_collection, dynamic_shapes
def get_phi_model_from_config(
warmup: int = 5,
repeat: int = 10,
config: str = "small",
num_hidden_layers: int = 1,
implementation: str = "eager",
dynamic_shapes: bool = False,
with_mask: bool = True,
) -> tuple[Any, list[tuple[torch.Tensor, ...]], dict]:
"""
Returns a model Phi to test or benchmark.
Args:
warmup: Number of inputs to generate.
repeat: Number of inputs to generate for repeat.
config: small, medium or large
num_hidden_layers: number of hidden layers
implementation: eager or sdpa
with_mask: One or two inputs.
dynamic_shapes: dynamic shapes or not
Returns:
Model and list of inputs.
"""
if config == "small":
conf_dict = dict(
input_dims=onnxscript.tools.transformers_models.get_input_dims_for_llm(
dynamic_shapes, warmup, repeat
),
hidden_size=32,
num_hidden_layers=num_hidden_layers,
vocab_size=99,
intermediate_size=16,
max_position_embeddings=512,
num_attention_heads=4,
num_key_value_heads=2,
_attn_implementation=implementation,
with_mask=with_mask,
)
elif config == "medium":
conf_dict = dict(
input_dims=onnxscript.tools.transformers_models.get_input_dims_for_llm(
dynamic_shapes, warmup, repeat
),
hidden_size=1024,
num_hidden_layers=num_hidden_layers,
vocab_size=1024,
intermediate_size=1024,
num_attention_heads=4,
num_key_value_heads=4,
max_position_embeddings=1024,
_attn_implementation=implementation,
with_mask=with_mask,
)
elif config in ("large", "default"):
conf_dict = dict(
input_dims=onnxscript.tools.transformers_models.get_input_dims_for_llm(
dynamic_shapes, warmup, repeat
),
hidden_size=2048,
num_hidden_layers=num_hidden_layers,
vocab_size=51200,
intermediate_size=8192,
num_attention_heads=32,
num_key_value_heads=None,
max_position_embeddings=2048,
_attn_implementation=implementation,
with_mask=with_mask,
)
else:
raise ValueError(f"Unexpected configuration {config!r}.")
return get_phi_model(**conf_dict) # type: ignore[arg-type]
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