Source code for onnx_diagnostic.tasks.text_generation
from typing import Any, Callable, Dict, Optional, Tuple, Union
import torch
import transformers
from ..helpers.cache_helper import (
make_dynamic_cache,
make_mamba_cache,
make_sliding_window_cache,
)
from ..helpers.config_helper import update_config, check_hasattr, _pick
__TASK__ = "text-generation"
[docs]
def reduce_model_config(config: Any, task: str) -> Dict[str, Any]:
"""Reduces a model size."""
# FalconMambaConfig: use_mambapy
check_hasattr(
config,
("head_dim", ("hidden_size", "num_attention_heads"), "use_mambapy"),
"num_hidden_layers",
("num_key_value_heads", "num_attention_heads", "use_mambapy"),
"intermediate_size",
"hidden_size",
"vocab_size",
)
if config.__class__.__name__ == "FalconMambaConfig":
check_hasattr(config, "conv_kernel", "state_size") # 4 and 8
kwargs = dict(
num_hidden_layers=min(config.num_hidden_layers, 2),
intermediate_size=256 if config is None else min(512, config.intermediate_size),
hidden_size=256 if config is None else min(256, config.hidden_size),
cls_cache="MambaCache",
state_size=8 if config is None else getattr(config, "state_size", None),
conv_kernel=4 if config is None else getattr(config, "conv_kernel", None),
)
else:
kwargs = dict(
head_dim=getattr(
config, "head_dim", config.hidden_size // config.num_attention_heads
),
num_hidden_layers=min(config.num_hidden_layers, 2),
num_key_value_heads=(
config.num_key_value_heads
if hasattr(config, "num_key_value_heads")
else config.num_attention_heads
),
intermediate_size=(
min(config.intermediate_size, 24576 // 4)
if config.intermediate_size % 4 == 0
else config.intermediate_size
),
hidden_size=(
min(config.hidden_size, 3072 // 4)
if config.hidden_size % 4 == 0
else config.hidden_size
),
)
update_config(config, kwargs)
return kwargs
[docs]
def get_inputs(
model: torch.nn.Module,
config: Optional[Any],
dummy_max_token_id: int,
num_hidden_layers: int,
batch_size: int = 2,
sequence_length: int = 30,
sequence_length2: int = 3,
dynamic_rope: bool = False,
num_key_value_heads: Optional[int] = None,
head_dim: Optional[int] = None,
cls_cache: Optional[Union[type, str]] = None,
**kwargs, # unused
):
"""
Generates input for task ``text-generation``.
:param model: model to get the missing information
:param config: configuration used to generate the model
:param head_dim: last dimension of the cache
:param dummy_max_token_id: dummy max token id
:param batch_size: batch size
:param sequence_length: sequence length
:param sequence_length2: new sequence length
:param dynamic_rope: use dynamic rope (see :class:`transformers.LlamaConfig`)
:param cls_cache: cache class, by default it is
:class:`transformers.cache_utils.DynamicCache`
:return: dictionary
"""
batch = torch.export.Dim("batch", min=1, max=1024)
seq_length = "seq_length" # torch.export.Dim("seq_length", min=1, max=4096)
cache_length = "cache_length" # torch.export.Dim("cache_length", min=1, max=4096)
if config is not None and config.__class__.__name__ == "FalconMambaConfig":
assert cls_cache in (
"MambaCache",
transformers.cache_utils.MambaCache,
), f"Unexpected value for cls_cache={cls_cache} and config={config}"
seq_length_multiple = 8
sequence_length = (
(sequence_length + seq_length_multiple)
// seq_length_multiple
* seq_length_multiple
)
# sequence_inc = seq_length_multiple
sequence_length2 = seq_length_multiple
shapes = {
"input_ids": {0: batch, 1: torch.export.Dim.DYNAMIC},
"attention_mask": {
0: batch,
1: "cache+seq", # cache_length + seq_length
},
"cache_position": {
0: batch,
1: "cache+seq", # cache_length + seq_length
},
"cache_params": [
[{0: batch} for _ in range(num_hidden_layers)],
[{0: batch} for _ in range(num_hidden_layers)],
],
}
inputs = dict(
input_ids=torch.randint(
0, dummy_max_token_id, (batch_size, sequence_length + sequence_length2)
).to(torch.int64),
attention_mask=torch.ones((batch_size, sequence_length + sequence_length2)).to(
torch.int64
),
cache_position=torch.arange(0, kwargs["conv_kernel"]).to(torch.int64),
# .expand((batch_size, -1))
cache_params=make_mamba_cache(
[
(
torch.randn(
batch_size, kwargs["intermediate_size"], kwargs["conv_kernel"]
),
torch.randn(
batch_size, kwargs["intermediate_size"], kwargs["state_size"]
),
)
for i in range(num_hidden_layers)
]
),
)
return dict(inputs=inputs, dynamic_shapes=shapes)
if head_dim is None:
assert config, "head_dim is None, the value cannot be set without a configuration"
head_dim = config.hidden_size // config.num_attention_heads
shapes = {
"input_ids": {0: batch, 1: seq_length},
"attention_mask": {
0: batch,
1: "cache+seq", # cache_length + seq_length
},
"position_ids": {
0: batch,
1: "cache+seq", # cache_length + seq_length
},
"past_key_values": [
[{0: batch, 2: cache_length} for _ in range(num_hidden_layers)],
[{0: batch, 2: cache_length} for _ in range(num_hidden_layers)],
],
}
make_cache = (
make_sliding_window_cache
if cls_cache in ("SlidingWindowCache", transformers.cache_utils.SlidingWindowCache)
else make_dynamic_cache
)
inputs = dict(
input_ids=torch.randint(0, dummy_max_token_id, (batch_size, sequence_length2)).to(
torch.int64
),
attention_mask=torch.ones((batch_size, sequence_length + sequence_length2)).to(
torch.int64
),
position_ids=torch.arange(sequence_length, sequence_length + sequence_length2)
.to(torch.int64)
.expand((batch_size, -1)),
past_key_values=make_cache(
[
(
torch.randn(batch_size, num_key_value_heads, sequence_length, head_dim),
torch.randn(batch_size, num_key_value_heads, sequence_length, head_dim),
)
for i in range(num_hidden_layers)
]
),
)
return dict(inputs=inputs, dynamic_shapes=shapes)
[docs]
def random_input_kwargs(config: Any, task: str) -> Tuple[Dict[str, Any], Callable]:
"""
Inputs kwargs.
If the configuration is None, the function selects typical dimensions.
"""
if config is not None:
check_hasattr(
config,
"vocab_size",
("num_attention_heads", "use_mambapy"),
("num_key_value_heads", "num_attention_heads", "use_mambapy"),
"intermediate_size",
"hidden_size",
)
if config.__class__.__name__ == "FalconMambaConfig":
check_hasattr(config, "conv_kernel", "state_size") # 4 and 8
kwargs = dict(
batch_size=2,
sequence_length=30,
sequence_length2=3,
dummy_max_token_id=31999 if config is None else (config.vocab_size - 1),
num_hidden_layers=4 if config is None else config.num_hidden_layers,
intermediate_size=256 if config is None else config.intermediate_size,
cls_cache="MambaCache",
state_size=8 if config is None else getattr(config, "state_size", None),
conv_kernel=8 if config is None else getattr(config, "conv_kernel", None),
)
else:
kwargs = dict(
batch_size=2,
sequence_length=30,
sequence_length2=3,
head_dim=(
16
if config is None
else getattr(
config, "head_dim", config.hidden_size // config.num_attention_heads
)
),
dummy_max_token_id=31999 if config is None else (config.vocab_size - 1),
num_hidden_layers=4 if config is None else config.num_hidden_layers,
num_key_value_heads=(
24
if config is None
else _pick(config, "num_key_value_heads", "num_attention_heads")
),
intermediate_size=1024 if config is None else config.intermediate_size,
hidden_size=512 if config is None else config.hidden_size,
)
return kwargs, get_inputs