Skip to content

Disables implicit GPTQ quantization using dtype_policy setter #21895

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
hertschuh merged 3 commits into from
Dec 7, 2025
+19 −0
Merged

Disables implicit GPTQ quantization using dtype_policy setter #21895

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
3 commits
Select commit Hold shift + click to select a range
46e74cb
disables implicit gptq quantization using dtype_policy setter
JyotinderSingh Dec 4, 2025
ae84464
Update layer.py
JyotinderSingh Dec 4, 2025
75b54c3
Update layer_test.py
JyotinderSingh Dec 4, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
7 changes: 7 additions & 0 deletions keras/src/layers/layer.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -757,6 +757,13 @@ def dtype_policy(self, value):
self._dtype_policy = policy
if policy.quantization_mode is not None:
if self.built and not getattr(self, "_is_quantized", False):
if policy.quantization_mode == "gptq":
raise ValueError(
f"{value=} enables GPTQ quantization mode."
"This is unsupported since GPTQ requires "
"a calibration dataset and a GPTQConfig."
"Use the `.quantize()` method instead."
)
self.quantize(policy.quantization_mode)

@property
Expand Down
10 changes: 10 additions & 0 deletions keras/src/layers/layer_test.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -233,6 +233,16 @@ def test_quantized_layer_with_remat(self):
self.assertLen(mock_remat.rematted_functions, 1)
next(iter(mock_remat.rematted_functions.values())).assert_called()

def test_gptq_quantization_by_setting_dtype(self):
"""Tests error being raised when dtype is set to GPTQ."""
with self.assertRaisesRegex(
ValueError,
"enables GPTQ quantization mode.This is unsupported",
):
layer = layers.Dense(3)
layer.build((2, 4))
layer.dtype_policy = "gptq/4/-1_from_float32"

def test_functional_model_with_remat(self):
if backend.backend() in ("openvino", "numpy"):
self.skipTest(
Expand Down