[Models] Add remaining model PP support (#7168)
Signed-off-by: Muralidhar Andoorveedu <muralidhar.andoorveedu@centml.ai> Signed-off-by: Murali Andoorveedu <muralidhar.andoorveedu@centml.ai> Co-authored-by: DarkLight1337 <tlleungac@connect.ust.hk>
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@@ -19,7 +19,7 @@
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# limitations under the License.
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"""Inference-only BaiChuan model compatible with HuggingFace weights."""
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import math
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from typing import Iterable, List, Optional, Tuple
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from typing import Iterable, List, Optional, Tuple, Union
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import torch
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from torch import nn
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@@ -27,7 +27,7 @@ from transformers import PretrainedConfig
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from vllm.attention import Attention, AttentionMetadata
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from vllm.config import CacheConfig, LoRAConfig
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from vllm.distributed import (get_tensor_model_parallel_rank,
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from vllm.distributed import (get_pp_group, get_tensor_model_parallel_rank,
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get_tensor_model_parallel_world_size)
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from vllm.model_executor.layers.activation import SiluAndMul
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from vllm.model_executor.layers.layernorm import RMSNorm
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@@ -35,8 +35,7 @@ from vllm.model_executor.layers.linear import (MergedColumnParallelLinear,
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QKVParallelLinear,
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RowParallelLinear)
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from vllm.model_executor.layers.logits_processor import LogitsProcessor
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from vllm.model_executor.layers.quantization.base_config import (
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QuantizationConfig)
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from vllm.model_executor.layers.quantization import QuantizationConfig
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from vllm.model_executor.layers.rotary_embedding import get_rope
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from vllm.model_executor.layers.sampler import Sampler, SamplerOutput
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from vllm.model_executor.layers.vocab_parallel_embedding import (
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@@ -45,7 +44,9 @@ from vllm.model_executor.model_loader.weight_utils import default_weight_loader
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from vllm.model_executor.sampling_metadata import SamplingMetadata
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from vllm.sequence import IntermediateTensors
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from .interfaces import SupportsLoRA
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from .interfaces import SupportsLoRA, SupportsPP
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from .utils import (is_pp_missing_parameter,
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make_empty_intermediate_tensors_factory, make_layers)
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def _get_alibi_slopes(total_num_heads: int) -> torch.Tensor:
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@@ -255,7 +256,8 @@ class BaiChuanModel(nn.Module):
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config: PretrainedConfig,
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position_embedding: str,
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cache_config: Optional[CacheConfig] = None,
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quant_config: Optional[QuantizationConfig] = None):
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quant_config: Optional[QuantizationConfig] = None,
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prefix: str = ""):
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super().__init__()
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self.config = config
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self.padding_idx = config.pad_token_id
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@@ -265,12 +267,16 @@ class BaiChuanModel(nn.Module):
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config.vocab_size,
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config.hidden_size,
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)
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self.layers = nn.ModuleList([
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BaiChuanDecoderLayer(config, position_embedding, cache_config,
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quant_config)
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for _ in range(config.num_hidden_layers)
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])
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self.start_layer, self.end_layer, self.layers = make_layers(
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config.num_hidden_layers,
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lambda prefix: BaiChuanDecoderLayer(config, position_embedding,
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cache_config, quant_config),
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prefix=f"{prefix}.layers",
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)
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self.norm = RMSNorm(config.hidden_size, eps=config.rms_norm_eps)
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self.make_empty_intermediate_tensors = (
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make_empty_intermediate_tensors_factory(
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["hidden_states", "residual"], config.hidden_size))
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def forward(
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self,
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@@ -278,23 +284,34 @@ class BaiChuanModel(nn.Module):
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positions: torch.Tensor,
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kv_caches: List[torch.Tensor],
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attn_metadata: AttentionMetadata,
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) -> torch.Tensor:
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hidden_states = self.embed_tokens(input_ids)
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residual = None
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for i in range(len(self.layers)):
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intermediate_tensors: Optional[IntermediateTensors],
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) -> Union[torch.Tensor, IntermediateTensors]:
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if get_pp_group().is_first_rank:
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hidden_states = self.embed_tokens(input_ids)
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residual = None
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else:
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assert intermediate_tensors is not None
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hidden_states = intermediate_tensors["hidden_states"]
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residual = intermediate_tensors["residual"]
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for i in range(self.start_layer, self.end_layer):
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layer = self.layers[i]
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hidden_states, residual = layer(
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positions,
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hidden_states,
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kv_caches[i],
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kv_caches[i - self.start_layer],
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attn_metadata,
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residual,
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)
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if not get_pp_group().is_last_rank:
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return IntermediateTensors({
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"hidden_states": hidden_states,
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"residual": residual,
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})
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hidden_states, _ = self.norm(hidden_states, residual)
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return hidden_states
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class BaiChuanBaseForCausalLM(nn.Module, SupportsLoRA):
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class BaiChuanBaseForCausalLM(nn.Module, SupportsLoRA, SupportsPP):
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packed_modules_mapping = {
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"W_pack": ["W_pack"],
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"gate_up_proj": [
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@@ -335,6 +352,8 @@ class BaiChuanBaseForCausalLM(nn.Module, SupportsLoRA):
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self.lm_head.weight = self.model.embed_tokens.weight
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self.logits_processor = LogitsProcessor(config.vocab_size)
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self.sampler = Sampler()
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self.make_empty_intermediate_tensors = (
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self.model.make_empty_intermediate_tensors)
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def forward(
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self,
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@@ -343,9 +362,9 @@ class BaiChuanBaseForCausalLM(nn.Module, SupportsLoRA):
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kv_caches: List[torch.Tensor],
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attn_metadata: AttentionMetadata,
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intermediate_tensors: Optional[IntermediateTensors] = None,
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) -> torch.Tensor:
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) -> Union[torch.Tensor, IntermediateTensors]:
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hidden_states = self.model(input_ids, positions, kv_caches,
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attn_metadata)
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attn_metadata, intermediate_tensors)
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return hidden_states
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def compute_logits(
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@@ -394,6 +413,8 @@ class BaiChuanBaseForCausalLM(nn.Module, SupportsLoRA):
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# Skip loading extra bias for GPTQ models.
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if name.endswith(".bias") and name not in params_dict:
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continue
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if is_pp_missing_parameter(name, self):
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continue
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param = params_dict[name]
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weight_loader = param.weight_loader
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weight_loader(param, loaded_weight, shard_id)
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@@ -402,6 +423,8 @@ class BaiChuanBaseForCausalLM(nn.Module, SupportsLoRA):
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# Skip loading extra bias for GPTQ models.
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if name.endswith(".bias") and name not in params_dict:
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continue
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if is_pp_missing_parameter(name, self):
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continue
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param = params_dict[name]
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weight_loader = getattr(param, "weight_loader",
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default_weight_loader)
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@@ -413,7 +436,7 @@ class BaichuanForCausalLM(BaiChuanBaseForCausalLM):
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def __init__(
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self,
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config,
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config: PretrainedConfig,
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cache_config: Optional[CacheConfig] = None,
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quant_config: Optional[QuantizationConfig] = None,
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lora_config: Optional[LoRAConfig] = None,
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@@ -431,7 +454,7 @@ class BaiChuanForCausalLM(BaiChuanBaseForCausalLM):
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def __init__(
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self,
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config,
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config: PretrainedConfig,
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cache_config: Optional[CacheConfig] = None,
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quant_config: Optional[QuantizationConfig] = None,
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lora_config: Optional[LoRAConfig] = None,
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