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[None][feat] Add Tencent HunYuanDenseV1 model support #7081
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Signed-off-by: sorenwu <sorenwu@tencent.com>
Signed-off-by: sorenwu <sorenwu@tencent.com>
📝 WalkthroughWalkthroughAdds a new HunYuan configuration class and a full dense HunYuan causal LM implementation. Exposes the model via the models package. Implements attention, MLP, decoder layers, model assembly, logits head, weight-loading logic (including TP KV duplication), input validation, and optional decode-time debug dumping. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
actor U as User Code
participant LM as HunYuanDenseV1ForCausalLM
participant M as HunYuanModel
participant E as Embeddings
participant L as DecoderLayer[n]
participant A as HunYuanAttention
participant F as HunYuanMLP
participant N as FinalNorm
participant H as LM Head
U->>LM: forward(attn_metadata, input_ids | inputs_embeds, position_ids, ...)
alt input_ids provided
LM->>M: forward(input_ids, position_ids, attn_metadata, ...)
M->>E: lookup(input_ids)
else inputs_embeds provided
LM->>M: forward(inputs_embeds, position_ids, attn_metadata, ...)
end
loop for each layer
M->>L: forward(hidden_states, attn_metadata, position_ids, ...)
L->>A: self-attn(qkv, rope, optional QK norm)
A-->>L: attn_output
L->>F: mlp(attn_output)
F-->>L: mlp_output
L-->>M: hidden_states
end
M->>N: normalize(hidden_states)
N-->>LM: features
LM->>H: project_to_vocab(features)
H-->>U: logits
note over LM,U: Optional: if DUMP_DECODE_STEP > 0, attach hooks and emit JSONL stats
sequenceDiagram
autonumber
actor U as Loader
participant LM as HunYuanDenseV1ForCausalLM
participant W as Weights Dict
participant Map as Mapping Logic
U->>LM: load_weights(W)
LM->>Map: filter/route module weights
Map-->>LM: assign module params
opt tensor-parallel
LM->>LM: duplicate KV weights per TP policy
end
opt tie_word_embeddings
LM->>LM: skip lm_head loading as needed
end
LM-->>U: load complete
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Actionable comments posted: 7
Caution
Some comments are outside the diff and can’t be posted inline due to platform limitations.
⚠️ Outside diff range comments (3)
tensorrt_llm/_torch/model_config.py (2)
1-1: Add NVIDIA copyright header.All source files should start with the current-year NVIDIA copyright header per repository guidelines.
Apply this diff at the top of the file:
+# Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved. +# +``` --- `11-16`: **Remove duplicate/conflicting logger import.** `logger` is imported twice (from different locations), which is redundant and can be confusing. Keep the explicit import from `tensorrt_llm.logger`. Apply this diff: ```diff -from tensorrt_llm import logger from tensorrt_llm._torch.pyexecutor.config_utils import is_nemotron_hybrid from tensorrt_llm._utils import get_sm_version, torch_dtype_to_binding from tensorrt_llm.bindings import LayerType as LayerTypeCpp from tensorrt_llm.functional import AllReduceStrategy from tensorrt_llm.logger import loggertensorrt_llm/_torch/models/__init__.py (1)
1-1: Add NVIDIA copyright header.Add the required NVIDIA copyright header at the top.
Apply this diff:
+# Copyright (c) 2025, NVIDIA CORPORATION. All rights reserved. +#
🧹 Nitpick comments (8)
tensorrt_llm/_torch/model_config.py (3)
244-247: Enablerope_scalingvalidation early.You define
_rope_scaling_validation()but never call it. Enabling it in__init__will catch invalid configs early.Apply this diff:
self.rope_theta = rope_theta self.rope_scaling = rope_scaling - # self._rope_scaling_validation() # TODO: Need validation? + self._rope_scaling_validation()If strictness is a concern, you can guard this call behind an env flag or parameter.
34-116: Docstring defaults and descriptions are out of sync with the implementation.Examples:
vocab_sizedoc says 32000, code defaults to 290943.rms_norm_epsdoc says 1e-06, code uses 1e-5.moe_intermediate_sizedoc says defaults to 11008, code defaults to None.attention_biashas duplicated “defaults toFalse”.Please align the docstring with the actual defaults to avoid confusion for users.
352-383: Be less strict aboutrope_scalingkeys.The current validation requires the dict to have exactly two keys (
len(...) != 2check). In practice, configs may carry auxiliary fields; this strictness can cause unnecessary breakage. Consider validating presence and type of required keys without constraining the total number of keys.tensorrt_llm/_torch/models/modeling_hunyuan_dense.py (5)
9-12: Use project logger instead ofThis module emits
Apply this diff to import the logger:
from tqdm import tqdm from tensorrt_llm._torch.distributed import AllReduceParams from tensorrt_llm.functional import PositionEmbeddingType +from tensorrt_llm.logger import loggerAnd see further comments for replacing
250-255: Consider using HunYuanMLP instead of the generic GatedMLP.You introduced HunYuanMLP to encapsulate HunYuan-specific sizing and MoE/shared-MLP choices, but the layer currently instantiates GatedMLP directly. Replace with HunYuanMLP to honor
moe_intermediate_size,num_shared_expert, etc.Apply this diff:
- self.mlp = GatedMLP(hidden_size=config.hidden_size, - intermediate_size=config.intermediate_size, - bias=config.mlp_bias, - dtype=config.torch_dtype, - config=model_config) + self.mlp = HunYuanMLP( + model_config=model_config, + layer_idx=layer_idx, + is_shared_mlp=False, + is_moe=(getattr(config, "num_experts", 1) != 1), + )If shared-MLP is part of your design, set
is_shared_mlp=Truebased on config.
444-456: Avoid hard-coded internal paths in debug dump directory.Defaulting
TRT_MODEL_DUMP_DIRto an internal path leaks internal infra details. Use a safe local default (e.g.,./trt_model_dumpsor/tmp/trt_model_dumps).Apply this diff:
self.dump_modules_file = os.path.join( os.environ.get( - "TRT_MODEL_DUMP_DIR", - "/apdcephfs_jn/share_302216743/jiarunliu/trt_model_dumps" + "TRT_MODEL_DUMP_DIR", + os.path.join(os.getcwd(), "trt_model_dumps"), ), f"trt_modules_{time.strftime('%Y%m%d_%H%M%S')}_{id(self):x}.jsonl" )
572-573: Useloggerand English messages for debug prints.Replace
logger.infoand avoid non-English logs to keep consistent logging conventions and CI log readability.Apply this diff:
- print(f"已完成第{self.decode_step - 3}次decode的数据收集,hook已移除") + logger.info("Removed debug hooks after collecting decode step %d", self.decode_step - 3) ... - print( - f"第{self.decode_step - 2}次decode的模块信息已dump到: {self.dump_modules_file}" - ) + logger.info( + "Dumped module info for decode step %d to %s", + self.decode_step - 2, + self.dump_modules_file, + )Also applies to: 593-595
29-73: Localize or translate comments/docstrings.Function docstrings and inline comments here are partly in Chinese. For consistency and maintainability across the project, translate them to English (Google-style docstrings preferred).
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📒 Files selected for processing (3)
tensorrt_llm/_torch/model_config.py(2 hunks)tensorrt_llm/_torch/models/__init__.py(2 hunks)tensorrt_llm/_torch/models/modeling_hunyuan_dense.py(1 hunks)
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📓 Path-based instructions (2)
**/*.py
📄 CodeRabbit Inference Engine (CODING_GUIDELINES.md)
**/*.py: Python code must target Python 3.8+
Python indentation: 4 spaces, no tabs
Maintain module namespace in imports (from package.subpackage import foo; then use foo.SomeClass())
Python file names use snake_case
Python class names use PascalCase
Python functions/methods and local variables use snake_case; variables starting with a number get k_ prefix (e.g., k_99th_percentile)
Global variables use G_ prefixed UPPER_SNAKE_CASE (e.g., G_MY_GLOBAL)
Constants use UPPER_SNAKE_CASE in Python
Avoid shadowing variables from outer scopes in Python
Initialize all externally visible members of a Python class in init
Prefer docstrings for interfaces used outside a file; comments for local code
Use Google-style docstrings for classes and functions (Sphinx-parsable)
Document attributes/variables inline with short docstrings
Avoid reflection when simple alternatives exist (e.g., prefer explicit parameters over dict(**locals()))
In try/except, catch the narrowest exceptions possible
For duck-typing with try/except, keep try body minimal and put logic in else
Files:
tensorrt_llm/_torch/models/__init__.pytensorrt_llm/_torch/models/modeling_hunyuan_dense.pytensorrt_llm/_torch/model_config.py
**/*.{cpp,cxx,cc,cu,h,hpp,hxx,hh,cuh,py}
📄 CodeRabbit Inference Engine (CODING_GUIDELINES.md)
Prepend NVIDIA copyright header (current year) to all source files
Files:
tensorrt_llm/_torch/models/__init__.pytensorrt_llm/_torch/models/modeling_hunyuan_dense.pytensorrt_llm/_torch/model_config.py
🪛 Ruff (0.12.2)
tensorrt_llm/_torch/models/modeling_hunyuan_dense.py
121-121: Comparison to None should be cond is not None
Replace with cond is not None
(E711)
483-483: Line too long (129 > 120)
(E501)
488-488: Line too long (134 > 120)
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496-496: Line too long (134 > 120)
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510-510: Line too long (164 > 120)
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tensorrt_llm/_torch/model_config.py
103-103: Line too long (130 > 120)
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113-113: Line too long (139 > 120)
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🔇 Additional comments (2)
tensorrt_llm/_torch/models/__init__.py (1)
11-11: Expose HunYuanDenseV1ForCausalLM (LGTM).Import and export additions look correct and align with the new model implementation.
Also applies to: 43-44
tensorrt_llm/_torch/models/modeling_hunyuan_dense.py (1)
340-347: Fix XOR logic for input validation.Current check raises when exactly one of
input_idsorinputs_embedsis provided. You want to raise when both are provided or both are missing.Apply this diff:
- if (input_ids is None) ^ (inputs_embeds is not None): - raise ValueError( - "You cannot specify both input_ids and inputs_embeds at the same time, and must specify either one" - ) + # Require exactly one of {input_ids, inputs_embeds} + if (input_ids is None) == (inputs_embeds is None): + raise ValueError( + "You must pass exactly one of input_ids or inputs_embeds." + )Likely an incorrect or invalid review comment.
Signed-off-by: jianweiwu <sorenwu@tencent.com>
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Signed-off-by: sorenwu <sorenwu@tencent.com>
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Hi @sorenwu , thanks for the contribution! Please see the comments.
Signed-off-by: sorenwu <sorenwu@tencent.com>
…dense.py Signed-off-by: sorenwu <sorenwu@tencent.com>
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LGYM, thanks!
Signed-off-by: Enwei Zhu <21126786+syuoni@users.noreply.github.com>
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This model requires transformers>=4.56.0, waiting for #7523 |
Signed-off-by: Enwei Zhu <21126786+syuoni@users.noreply.github.com>
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/bot run |
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PR_Github #19601 [ run ] triggered by Bot |
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PR_Github #19601 [ run ] completed with state |
Summary by CodeRabbit
Description
Currently, the Hunyuan inference team supports the Hunyuan-0.5B/1.8B/4B/7B model. By adding the modeling_hunyuan_dense.py related files, it supports the model of HunYuanDenseV1ForCausalLM.
We have validated the accuracy of this PR,HunYuan (new Dense LLM model from Tencent) will open source these days.
Thanks~
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