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# SPDX-FileCopyrightText: Copyright (c) 2022-2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
# SPDX-License-Identifier: Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from collections import OrderedDict
from typing import List
import tensorrt as trt
from ..._common import default_net
from ..._utils import str_dtype_to_trt
from ...functional import (Tensor, arange, concat, expand,
gather_last_token_logits, shape, tanh, unsqueeze)
from ...layers import (Attention, AttentionMaskType, AttentionParams,
ColumnLinear, Embedding, GatedMLP, KeyValueCacheParams,
PositionEmbeddingType, Recurrent, RmsNorm)
from ...module import Module, ModuleList
from ...plugin import current_all_reduce_helper
from ..generation_mixin import GenerationMixin
from ..modeling_utils import PretrainedConfig, PretrainedModel
class ResidualLayer(Module):
def __init__(self, config: PretrainedConfig, layer_idx: int):
super().__init__()
layer_type_len = len(config.layer_types)
self.temporal_block_type = config.layer_types[layer_idx %
layer_type_len]
self.input_layernorm = RmsNorm(normalized_shape=config.hidden_size,
eps=config.norm_epsilon,
dtype=config.dtype)
if self.temporal_block_type == 'recurrent':
self.recurrent = Recurrent(width=config.hidden_size,
lru_width=config.rnn_hidden_size,
d_conv=config.conv_kernel,
num_heads=config.num_attention_heads,
dtype=config.dtype,
tp_group=config.mapping.tp_group,
tp_size=config.mapping.tp_size)
elif self.temporal_block_type == 'attention':
layer_types = config.layer_types * (
(layer_idx + 1) // layer_type_len)
layer_types = layer_types + config.layer_types[0:(
(layer_idx + 1) % layer_type_len)]
attention_layer_idx = layer_types.count('attention') - 1
self.attention = Attention(
local_layer_idx=attention_layer_idx,
hidden_size=config.hidden_size,
num_attention_heads=config.num_attention_heads,
num_kv_heads=config.num_key_value_heads,
dtype=config.dtype,
attention_mask_type=AttentionMaskType.causal,
position_embedding_type=PositionEmbeddingType.rope_gpt_neox,
rotary_embedding_percentage=config.rotary_pct,
tp_group=config.mapping.tp_group,
tp_size=config.mapping.tp_size,
tp_rank=config.mapping.tp_rank,
quant_mode=config.quant_mode,
bias=False,
dense_bias=True)
else:
raise ValueError(
'RecurrentGemma only support "recurrent" and "attention" blocks.'
)
self.post_layernorm = RmsNorm(normalized_shape=config.hidden_size,
eps=config.norm_epsilon,
dtype=config.dtype)
self.mlp = GatedMLP(hidden_size=config.hidden_size,
ffn_hidden_size=config.intermediate_size,
hidden_act=config.hidden_act,
dtype=config.dtype,
tp_group=config.mapping.tp_group,
tp_size=config.mapping.tp_size,
quant_mode=config.quant_mode)
def forward(self,
hidden_states,
use_cache=False,
attention_mask=None,
kv_cache_params=None,
attention_params=None,
conv_state=None,
lru_state=None,
host_request_types=None,
last_token_ids=None,
host_context_lengths=None,
slot_mapping=None,
conv_indices=None):
residual = hidden_states
hidden_states = self.input_layernorm(hidden_states)
if self.temporal_block_type == 'recurrent':
temporal_output, present_conv, present_lru = self.recurrent(
hidden_states,
conv_state=conv_state,
lru_state=lru_state,
host_request_types=host_request_types,
last_token_ids=last_token_ids,
host_context_lengths=host_context_lengths,
slot_mapping=slot_mapping,
conv_indices=conv_indices,
)
else:
present_conv, present_lru = None, None
if self.temporal_block_type == 'attention':
temporal_output, present_kv = self.attention(
hidden_states,
attention_mask=attention_mask,
use_cache=use_cache,
kv_cache_params=kv_cache_params,
attention_params=attention_params)
else:
present_kv = None
hidden_states = residual + temporal_output
residual = hidden_states
hidden_states = self.post_layernorm(hidden_states)
hidden_states = self.mlp(hidden_states)
hidden_states = residual + hidden_states
return hidden_states, present_kv, present_conv, present_lru
class RecurrentGemmaModel(Module):
def __init__(self, config: PretrainedConfig) -> None:
super().__init__()
self.d_conv = config.conv_kernel
self.lru_width = config.rnn_hidden_size
n_layer = config.num_hidden_layers
self.vocab_embedding = Embedding(config.vocab_size,
config.hidden_size,
dtype=config.dtype)
self.layers = ModuleList(
[ResidualLayer(config, layer_idx=i) for i in range(n_layer)])
self.ln_f = RmsNorm(normalized_shape=config.hidden_size,
eps=config.norm_epsilon,
dtype=config.dtype)
def forward(self,
input_ids,
use_cache=False,
attention_mask=None,
kv_cache_params=None,
attention_params=None,
conv_states=None,
lru_states=None,
host_request_types=None,
last_token_ids=None,
host_context_lengths=None,
slot_mapping=None):
hidden_states = self.vocab_embedding(input_ids)
# Get conv state indices
indices = None
if not default_net().plugin_config.mamba_conv1d_plugin:
batch_size = shape(input_ids, 0)
indices = expand(
unsqueeze(arange(0, self.d_conv - 1, dtype='int32'), 0),
concat([batch_size, self.d_conv - 1]))
offsets = expand(unsqueeze(last_token_ids, 1),
concat([batch_size, self.d_conv - 1]))
indices = unsqueeze(indices + offsets, 1)
indices = expand(
indices, concat([batch_size, self.lru_width, self.d_conv - 1]))
present_kvs, present_convs, present_lrus = [], [], []
for layer, past_kv, past_conv, past_lru in zip(
self.layers, kv_cache_params.past_key_value, conv_states,
lru_states):
hidden_states, present_kv, present_conv, present_lru = layer(
hidden_states,
use_cache,
attention_mask,
kv_cache_params=KeyValueCacheParams(
past_key_value=[past_kv],
host_past_key_value_lengths=kv_cache_params.
host_past_key_value_lengths,
host_max_attention_window_sizes=kv_cache_params.
host_max_attention_window_sizes,
host_sink_token_length=kv_cache_params.
host_sink_token_length,
kv_cache_block_offsets=kv_cache_params.
kv_cache_block_offsets,
host_kv_cache_block_offsets=kv_cache_params.
host_kv_cache_block_offsets,
host_kv_cache_pool_pointers=kv_cache_params.
host_kv_cache_pool_pointers,
cache_indirection=kv_cache_params.cache_indirection),
attention_params=attention_params,
conv_state=past_conv,
lru_state=past_lru,
host_request_types=host_request_types,
last_token_ids=last_token_ids,
host_context_lengths=host_context_lengths,
slot_mapping=slot_mapping,
conv_indices=indices)
present_kvs.append(present_kv)
present_convs.append(present_conv)
present_lrus.append(present_lru)
hidden_states = self.ln_f(hidden_states)
return hidden_states, tuple(present_kvs), tuple(present_convs), tuple(
present_lrus)
class RecurrentGemmaForCausalLM(PretrainedModel):
def __init__(self, config: PretrainedConfig):
super().__init__(config)
dtype = config.dtype
logits_dtype = config.logits_dtype
if isinstance(dtype, str):
self.dtype = str_dtype_to_trt(dtype)
else:
assert isinstance(dtype, trt.DataType)
self.dtype = dtype
assert len(config.layer_types) > 0
layer_types = config.layer_types
layer_types = layer_types * (config.num_hidden_layers //
len(layer_types))
layer_types = layer_types + layer_types[0:(config.num_hidden_layers %
len(layer_types))]
self.layer_types = layer_types
self.config = config
self.gather_context_logits = False
self.logits_soft_cap = config.logits_soft_cap
if isinstance(logits_dtype, str):
self._logits_dtype = str_dtype_to_trt(logits_dtype)
else:
assert isinstance(logits_dtype, trt.DataType)
self._logits_dtype = logits_dtype
self.transformer = RecurrentGemmaModel(config)
self.lm_head = ColumnLinear(config.hidden_size,
config.vocab_size,
bias=False,
dtype=dtype,
tp_group=config.mapping.tp_group,
tp_size=config.mapping.tp_size,
gather_output=True)
def forward(self,
input_ids,
position_ids=None,
use_cache=False,
attention_mask=None,
kv_cache_params=None,
attention_params=None,
conv_states=None,
rnn_states=None,
host_request_types=None,
last_token_ids=None,
last_token_ids_for_logits=None,
host_context_lengths=None,
slot_mapping=None):
hidden_states, present_kvs, present_convs, present_rnns = self.transformer(
input_ids, use_cache, attention_mask, kv_cache_params,
attention_params, conv_states, rnn_states, host_request_types,
last_token_ids, host_context_lengths, slot_mapping)
if not self.gather_context_logits:
hidden_states = gather_last_token_logits(
hidden_states, last_token_ids_for_logits,
default_net().plugin_config.remove_input_padding)
lm_logits = self.lm_head(hidden_states)
lm_logits = tanh(
lm_logits / self.logits_soft_cap) * self.logits_soft_cap
lm_logits.mark_output('logits', self._logits_dtype)
if not default_net().plugin_config.paged_kv_cache:
for i, present_kv in enumerate(present_kvs):
if present_kv is not None:
present_kv.mark_output(f'present_key_value_{i}', self.dtype)
if not default_net().plugin_config.paged_state:
for i, present_conv in enumerate(present_convs):
if present_conv is not None:
present_conv.mark_output(f'present_conv_state_{i}',
self.dtype)
for i, present_rnn in enumerate(present_rnns):
if present_rnn is not None:
present_rnn.mark_output(f'present_rnn_state_{i}',
str_dtype_to_trt('float32'))
return (lm_logits, present_kvs, present_convs, present_rnns)
def prepare_recurrent_inputs(self, max_batch_size, num_profiles, mapping):
use_mamba_conv1d_plugin = default_net(
).plugin_config.mamba_conv1d_plugin
default_range = GenerationMixin.default_range
batch_range = [default_range(max_batch_size)] * num_profiles
conv_states = []
rnn_states = []
dim = self.config.rnn_hidden_size // mapping.tp_size
if use_mamba_conv1d_plugin:
conv_state_dim_range = OrderedDict([
('batch_size', batch_range),
('kernel_size', [self.config.conv_kernel - 1] * num_profiles),
('dim_size', [dim] * num_profiles),
])
else:
conv_state_dim_range = OrderedDict([
('batch_size', batch_range),
('dim_size', [dim] * num_profiles),
('kernel_size', [self.config.conv_kernel - 1] * num_profiles),
])
rnn_state_dim_range = OrderedDict([
('batch_size', batch_range),
('state_size', [1] * num_profiles),
('dim_size', [dim] * num_profiles),
])
one_dim_range = OrderedDict([
('buffer_count', [1] * num_profiles),
])
for i in range(self.config.num_hidden_layers):
if self.layer_types[i] == 'recurrent':
if default_net().plugin_config.paged_state:
conv_state = Tensor(name=f'conv_state_ptr_{i}',
dtype=str_dtype_to_trt('int64'),
shape=[1],
dim_range=one_dim_range)
rnn_state = Tensor(name=f'rnn_state_ptr_{i}',
dtype=str_dtype_to_trt('int64'),
shape=[1],
dim_range=one_dim_range)
else:
if use_mamba_conv1d_plugin:
conv_state = Tensor(
name=f'past_conv_state_{i}',
dtype=self.dtype,
shape=[-1, self.config.conv_kernel - 1, dim],
dim_range=conv_state_dim_range)
else:
conv_state = Tensor(
name=f'past_conv_state_{i}',
dtype=self.dtype,
shape=[-1, dim, self.config.conv_kernel - 1],
dim_range=conv_state_dim_range)
rnn_state = Tensor(name=f'past_rnn_state_{i}',
dtype=str_dtype_to_trt('float32'),
shape=[-1, 1, dim],
dim_range=rnn_state_dim_range)
else:
conv_state, rnn_state = None, None
conv_states.append(conv_state)
rnn_states.append(rnn_state)
slot_mapping = None
if default_net().plugin_config.paged_state:
slot_mapping = Tensor(
name='slot_mapping',
dtype=trt.int32,
shape=[-1],
dim_range=OrderedDict([('batch_size', batch_range)]),
)
return_dict = {
'conv_states': conv_states,
'rnn_states': rnn_states,
'slot_mapping': slot_mapping,
}
return return_dict
def prepare_inputs(
self,
max_batch_size,
max_input_len,
max_seq_len,
max_num_tokens,
use_cache,
max_beam_width: int = 1,
opt_num_tokens: int = None,
opt_batch_size: int = 0,
prompt_embedding_table_size: int = 0,
max_draft_len: int = 0,
gather_context_logits: bool = False,
gather_generation_logits: bool = False,
lora_target_modules: List[str] = None,
speculative_decoding_draft_tokens_external: bool = False):
'''@brief: Prepare inputs Tensors for the model, the given sizes are used to determine the
ranges of the dimensions of when using TRT dynamic shapes.
@return: a list contains values which can be fed into the self.forward()
'''
assert speculative_decoding_draft_tokens_external == False, \
"We don't support speculative decoding for the RecurrentGemma model."
assert max_beam_width == 1, "We don't support beam search for the RecurrentGemma model."
remove_input_padding = default_net().plugin_config.remove_input_padding
use_gpt_attention_plugin = default_net(
).plugin_config.gpt_attention_plugin
use_gemm_plugin = default_net().plugin_config.gemm_plugin
paged_kv_cache = default_net().plugin_config.paged_kv_cache
tokens_per_block = default_net().plugin_config.tokens_per_block
multiple_profiles = default_net().plugin_config.multiple_profiles
streamingllm = default_net().plugin_config.streamingllm
use_mamba_conv1d_plugin = default_net(
).plugin_config.mamba_conv1d_plugin
self.gather_context_logits = gather_context_logits
mapping = self.config.mapping
# basic inputs
enable_ctx_gen_opt_profiles = GenerationMixin.has_ctx_gen_opt_profiles(
use_gpt_attention_plugin, use_gemm_plugin, remove_input_padding,
paged_kv_cache)
num_profiles, ranges = GenerationMixin.get_profiles_ranges(
max_batch_size=max_batch_size,
max_beam_width=max_beam_width,
max_input_len=max_input_len,
max_num_tokens=max_num_tokens,
max_draft_len=max_draft_len,
opt_batch_size=opt_batch_size,
opt_num_tokens=opt_num_tokens,
enable_ctx_gen_opt_profiles=enable_ctx_gen_opt_profiles,
multiple_profiles=multiple_profiles)
if remove_input_padding:
assert use_mamba_conv1d_plugin, "mamba_conv1d_plugin is needed to support remove_input_padding"
input_ids = Tensor(name='input_ids',
dtype=trt.int32,
shape=[-1],
dim_range=OrderedDict([
('num_tokens', ranges['num_tokens_range']),
]))
position_ids = Tensor(name='position_ids',
dtype=trt.int32,
shape=[-1],
dim_range=OrderedDict([
('position_ids_num_tokens_range',
ranges['num_tokens_range']),
]))
else:
input_ids = Tensor(name='input_ids',
dtype=trt.int32,
shape=[-1, -1],
dim_range=OrderedDict([
('batch_size_beam_width',
ranges['bb_range']),
('input_len', ranges['inlen_range']),
]))
position_ids = Tensor(name='position_ids',
dtype=trt.int32,
shape=[-1, -1],
dim_range=OrderedDict([
('batch_size_beam_width',
ranges['bb_range']),
('position_ids_inlen_range',
ranges['position_ids_inlen_range']),
]))
if mapping.tp_size > 1:
current_all_reduce_helper().set_workspace_tensor(
mapping, num_profiles)
# attention inputs
num_attention_layers = self.layer_types.count('attention')
attn_layer_idx = []
for i in range(self.config.num_hidden_layers):
if self.layer_types[i] == 'attention':
attn_layer_idx.append(i)
attention_inputs = self.prepare_attention_inputs(
max_batch_size=max_batch_size,
max_beam_width=max_beam_width,
max_input_len=max_input_len,
max_seq_len=max_seq_len,
num_kv_heads=self.config.num_key_value_heads,
head_size=self.config.head_size,
num_layers=num_attention_layers,
kv_dtype=str_dtype_to_trt(self.config.kv_dtype),
num_profiles=num_profiles,
enable_ctx_gen_opt_profiles=enable_ctx_gen_opt_profiles,
remove_input_padding=remove_input_padding,
use_gpt_attention_plugin=use_gpt_attention_plugin,
paged_kv_cache=paged_kv_cache,
tokens_per_block=tokens_per_block,
mapping=mapping,
streamingllm=streamingllm,
attn_layer_idx=attn_layer_idx)
kv_idx = 0
past_key_value = []
for i in range(self.config.num_hidden_layers):
if self.layer_types[i] == 'attention' and not paged_kv_cache:
past_key_value.append(
attention_inputs['past_key_value'][kv_idx])
kv_idx += 1
else:
past_key_value.append(None)
attention_inputs['past_key_value'] = past_key_value
# recurrent inputs
recurrent_inputs = self.prepare_recurrent_inputs(
max_batch_size=max_batch_size,
num_profiles=num_profiles,
mapping=mapping,
)
if use_gpt_attention_plugin:
host_request_types = attention_inputs['host_request_types']
else:
host_request_types = Tensor(
name='host_request_types',
dtype=trt.int32,
shape=[-1],
dim_range=OrderedDict([('batch_size_beam_width',
ranges['bb_range'])]),
)
last_token_ids = Tensor(
name='last_token_ids',
dtype=trt.int32,
shape=[-1],
dim_range=OrderedDict([
('batch_size_last_token_ids', ranges['bbd_range']),
]),
)
last_token_ids_for_logits = None
if not gather_context_logits:
last_token_ids_for_logits = last_token_ids
if use_gpt_attention_plugin and remove_input_padding:
host_context_lengths = attention_inputs['host_context_lengths']
elif remove_input_padding:
host_context_lengths = Tensor(
name='host_context_lengths',
dtype=trt.int32,
shape=[-1],
dim_range=OrderedDict([('batch_size_beam_width',
ranges['bb_range'])]),
)
else:
host_context_lengths = None
return_dict = {
'input_ids':
input_ids,
'position_ids':
position_ids,
'use_cache':
True,
'attention_mask':
attention_inputs['attention_mask'],
'kv_cache_params':
KeyValueCacheParams(
past_key_value=attention_inputs['past_key_value'],
host_past_key_value_lengths=attention_inputs[
'host_past_key_value_lengths'],
host_max_attention_window_sizes=attention_inputs[
'host_max_attention_window_sizes'],
host_sink_token_length=attention_inputs[
'host_sink_token_length'],
kv_cache_block_offsets=attention_inputs[
'kv_cache_block_offsets'],
host_kv_cache_block_offsets=attention_inputs[
'host_kv_cache_block_offsets'],
host_kv_cache_pool_pointers=attention_inputs[
'host_kv_cache_pool_pointers'],
cache_indirection=attention_inputs['cache_indirection'],
),
'attention_params':
AttentionParams(
sequence_length=attention_inputs['sequence_length'],
context_lengths=attention_inputs['context_lengths'],
host_context_lengths=attention_inputs['host_context_lengths'],
max_context_length=max_input_len,
host_request_types=attention_inputs['host_request_types'],
host_runtime_perf_knobs=attention_inputs[
'host_runtime_perf_knobs']),
'conv_states':
recurrent_inputs['conv_states'],
'rnn_states':
recurrent_inputs['rnn_states'],
'host_request_types':
host_request_types,
'last_token_ids':
last_token_ids,
'last_token_ids_for_logits':
last_token_ids_for_logits,
'host_context_lengths':
host_context_lengths,
'slot_mapping':
recurrent_inputs['slot_mapping'],
}
return return_dict
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