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convert : remove unused field ModelTensorInfo.src_qtype

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This commit is contained in:
Francis Couture-Harpin
2025-09-04 23:28:01 -04:00
parent be600e2622
commit 8ef4136b20
1 changed files with 13 additions and 19 deletions
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32
convert_hf_to_gguf.py
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@@ -65,8 +65,7 @@ class ModelTensorInfo:
load: Callable[[], Tensor]
size: int # in elements
src_type: str
src_qtype: gguf.GGMLQuantizationType | None = None
dst_qtype: gguf.GGMLQuantizationType | None = None
auto_qtype: gguf.GGMLQuantizationType | None = None
class ModelBase:
@@ -139,17 +138,17 @@ class ModelBase:
# find out the most common type
hist: dict[gguf.GGMLQuantizationType, int] = {}
for t in self.model_tensors.values():
if t.dst_qtype is not None:
if t.dst_qtype not in hist:
hist[t.dst_qtype] = 0
hist[t.dst_qtype] += t.size
if t.auto_qtype is not None:
if t.auto_qtype not in hist:
hist[t.auto_qtype] = 0
hist[t.auto_qtype] += t.size
max_qtype = gguf.GGMLQuantizationType.F32
max_size = 0
for qtype, size in hist.items():
if size > max_size:
max_qtype = qtype
max_size = size
# TODO: add more type if they're used as dst_qtypes
# TODO: add more type if they're used as auto_qtype
if max_qtype == gguf.GGMLQuantizationType.F32:
self.ftype = gguf.LlamaFileType.ALL_F32
elif max_qtype == gguf.GGMLQuantizationType.F16:
@@ -200,8 +199,7 @@ class ModelBase:
load=lambda r=remote_tensor: LazyTorchTensor.from_remote_tensor(r),
size=math.prod(remote_tensor.shape),
src_type=str(dtype),
src_qtype=qtype,
dst_qtype=qtype,
auto_qtype=qtype,
)
return tensors
@@ -265,8 +263,7 @@ class ModelBase:
load=data_gen,
size=size,
src_type=str(dtype),
src_qtype=qtype,
dst_qtype=qtype,
auto_qtype=qtype,
)
# verify tensor name presence and identify potentially missing files
@@ -370,8 +367,7 @@ class ModelBase:
load=lambda w=w, s=s: dequant_bitnet(w.load(), s.load()),
size=w.size,
src_type="bitnet",
src_qtype=gguf.GGMLQuantizationType.F32,
dst_qtype=gguf.GGMLQuantizationType.TQ1_0,
auto_qtype=gguf.GGMLQuantizationType.TQ1_0,
)
tensors_to_remove.append(name)
elif quant_method == "fp8":
@@ -384,8 +380,7 @@ class ModelBase:
load=lambda w=w, s=s: dequant_simple(w.load(), s.load()),
size=w.size,
src_type=w.src_type,
src_qtype=gguf.GGMLQuantizationType.F32,
dst_qtype=gguf.GGMLQuantizationType.BF16, # TODO: change to FP8 once natively supported
auto_qtype=gguf.GGMLQuantizationType.BF16, # TODO: change to FP8 once natively supported
)
tensors_to_remove.append(name)
elif quant_method == "gptq":
@@ -403,8 +398,7 @@ class ModelBase:
),
size=qweight.size, # TODO: use more accurate value
src_type=f"GPTQ-{bits}bit",
src_qtype=gguf.GGMLQuantizationType.F32,
dst_qtype=gguf.GGMLQuantizationType.Q8_0 if bits == 8 else gguf.GGMLQuantizationType.Q4_1,
auto_qtype=gguf.GGMLQuantizationType.Q8_0 if bits == 8 else gguf.GGMLQuantizationType.Q4_1,
)
tensors_to_remove += [
base_name + n
@@ -569,7 +563,7 @@ class ModelBase:
# No override (data_qtype is False), or wants to be quantized (data_qtype is True)
if isinstance(data_qtype, bool):
if self.ftype_guessed:
data_qtype = old_qtype if tensor_info is None or tensor_info.dst_qtype is None else tensor_info.dst_qtype
data_qtype = old_qtype if tensor_info is None or tensor_info.auto_qtype is None else tensor_info.auto_qtype
elif self.ftype == gguf.LlamaFileType.ALL_F32:
data_qtype = gguf.GGMLQuantizationType.F32
elif self.ftype == gguf.LlamaFileType.MOSTLY_F16:
@@ -8942,7 +8936,7 @@ class LazyTorchTensor(gguf.LazyBase):
meta=gguf.LazyNumpyTensor.meta_with_dtype_and_shape(dtype, self.shape),
args=(self,),
func=(lambda s: s.numpy()),
ranges=self._ranges
ranges=self._ranges,
)
@classmethod