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convert : fix null head_dim AutoConfig regression #14248

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Jun 18, 2025
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convert : fix null head_dim AutoConfig regression #14248

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38 changes: 16 additions & 22 deletions convert_hf_to_gguf.py
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Original file line number Diff line number Diff line change
Expand Up @@ -556,11 +556,8 @@ def set_gguf_parameters(self):
logger.info(f"gguf: experts used count = {n_experts_used}")

if (head_dim := self.hparams.get("head_dim")) is not None:
# Workaround for incorrect AutoConfig value for DeepSeekV3 (is set correctly in DeepSeekV2Model class)
# https://github.com/huggingface/transformers/blob/19224c3642705c5b6988c9f5f4251f83323d05ae/src/transformers/models/deepseek_v3/configuration_deepseek_v3.py#L210
if self.hparams.get("model_type") != "deepseek_v3":
self.gguf_writer.add_key_length(head_dim)
self.gguf_writer.add_value_length(head_dim)
self.gguf_writer.add_key_length(head_dim)
self.gguf_writer.add_value_length(head_dim)

self.gguf_writer.add_file_type(self.ftype)
logger.info(f"gguf: file type = {self.ftype}")
Expand Down Expand Up @@ -1901,9 +1898,7 @@ def set_gguf_parameters(self):
hparams = self.hparams
self.gguf_writer.add_vocab_size(hparams["vocab_size"])

if "head_dim" in hparams:
rope_dim = hparams["head_dim"]
else:
if (rope_dim := hparams.get("head_dim")) is None:
rope_dim = hparams["hidden_size"] // hparams["num_attention_heads"]
self.gguf_writer.add_rope_dimension_count(rope_dim)

Expand Down Expand Up @@ -1985,7 +1980,8 @@ def generate_extra_tensors(self) -> Iterable[tuple[str, Tensor]]:
if rope_scaling := self.find_hparam(["rope_scaling"], optional=True):
if rope_scaling.get("rope_type", '').lower() == "llama3":
base = self.hparams.get("rope_theta", 10000.0)
dim = self.hparams.get("head_dim", self.hparams["hidden_size"] // self.hparams["num_attention_heads"])
if (dim := self.hparams.get("head_dim")) is None:
dim = self.hparams["hidden_size"] // self.hparams["num_attention_heads"]
freqs = 1.0 / (base ** (torch.arange(0, dim, 2, dtype=torch.float32) / dim))

factor = rope_scaling.get("factor", 8.0)
Expand Down Expand Up @@ -2321,9 +2317,7 @@ def set_gguf_parameters(self):
hparams = self.hparams
self.gguf_writer.add_vocab_size(hparams["vocab_size"])

if "head_dim" in hparams:
rope_dim = hparams["head_dim"]
else:
if (rope_dim := hparams.get("head_dim")) is None:
rope_dim = hparams["hidden_size"] // hparams["num_attention_heads"]
self.gguf_writer.add_rope_dimension_count(rope_dim)

Expand Down Expand Up @@ -2363,7 +2357,8 @@ def generate_extra_tensors(self) -> Iterable[tuple[str, Tensor]]:
if rope_scaling := self.find_hparam(["rope_scaling"], optional=True):
if rope_scaling.get("rope_type", '').lower() == "llama3":
base = self.hparams.get("rope_theta", 10000.0)
dim = self.hparams.get("head_dim", self.hparams["hidden_size"] // self.hparams["num_attention_heads"])
if (dim := self.hparams.get("head_dim")) is None:
dim = self.hparams["hidden_size"] // self.hparams["num_attention_heads"]
freqs = 1.0 / (base ** (torch.arange(0, dim, 2, dtype=torch.float32) / dim))

factor = rope_scaling.get("factor", 8.0)
Expand Down Expand Up @@ -3681,9 +3676,7 @@ def set_gguf_parameters(self):
hparams = self.hparams
self.gguf_writer.add_vocab_size(hparams["vocab_size"])

if "head_dim" in hparams:
rope_dim = hparams["head_dim"]
else:
if (rope_dim := hparams.get("head_dim")) is None:
rope_dim = hparams["hidden_size"] // hparams["num_attention_heads"]
self.gguf_writer.add_rope_dimension_count(rope_dim)

Expand Down Expand Up @@ -5098,9 +5091,7 @@ def set_vocab(self):
def set_gguf_parameters(self):
super().set_gguf_parameters()
hparams = self.hparams
if "head_dim" in hparams:
rope_dim = hparams["head_dim"]
else:
if (rope_dim := hparams.get("head_dim")) is None:
rope_dim = hparams["hidden_size"] // hparams["num_attention_heads"]

self.gguf_writer.add_rope_dimension_count(rope_dim)
Expand Down Expand Up @@ -5990,7 +5981,8 @@ def generate_extra_tensors(self) -> Iterable[tuple[str, Tensor]]:
if rope_scaling := self.find_hparam(["rope_scaling"], optional=True):
if rope_scaling.get("rope_type", '').lower() == "llama3":
base = self.hparams.get("rope_theta", 10000.0)
dim = self.hparams.get("head_dim", self.hparams["hidden_size"] // self.hparams["num_attention_heads"])
if (dim := self.hparams.get("head_dim")) is None:
dim = self.hparams["hidden_size"] // self.hparams["num_attention_heads"]
freqs = 1.0 / (base ** (torch.arange(0, dim, 2, dtype=torch.float32) / dim))

factor = rope_scaling.get("factor", 8.0)
Expand Down Expand Up @@ -6102,7 +6094,8 @@ def set_vocab(self):
def set_gguf_parameters(self):
super().set_gguf_parameters()
hparams = self.hparams
rope_dim = hparams.get("head_dim") or hparams["hidden_size"] // hparams["num_attention_heads"]
if (rope_dim := hparams.get("head_dim")) is None:
rope_dim = hparams["hidden_size"] // hparams["num_attention_heads"]

self.gguf_writer.add_rope_dimension_count(rope_dim)
rope_scaling = self.hparams.get("rope_scaling") or {}
Expand Down Expand Up @@ -6134,7 +6127,8 @@ def modify_tensors(self, data_torch: Tensor, name: str, bid: int | None) -> Iter
n_head = self.hparams["num_attention_heads"]
n_kv_head = self.hparams.get("num_key_value_heads")
n_embd = self.hparams["hidden_size"]
head_dim = self.hparams.get("head_dim") or n_embd // n_head
if (head_dim := self.hparams.get("head_dim")) is None:
head_dim = n_embd // n_head

output_name = self.format_tensor_name(gguf.MODEL_TENSOR.OUTPUT)

Expand Down