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Support loading Gemma3 QAT GGUF models (#37649)

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* fix gemma3 qat gguf support

Signed-off-by: isotr0py <2037008807@qq.com>

* update test

Signed-off-by: isotr0py <2037008807@qq.com>

* make ruff happy

Signed-off-by: isotr0py <2037008807@qq.com>

---------

Signed-off-by: isotr0py <2037008807@qq.com>
Co-authored-by: Mohamed Mekkouri <93391238+MekkCyber@users.noreply.github.com>
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Isotr0py 2025-04-22 17:23:17 +08:00 committed by GitHub
parent 7eb1107cc2
commit c69e23455d
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2 changed files with 11 additions and 6 deletions
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3
src/transformers/modeling_gguf_pytorch_utils.py
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@ -258,6 +258,8 @@ TENSOR_PROCESSORS = {
def read_field(reader, field):
if field not in reader.fields:
return []
value = reader.fields[field]
return [_gguf_parse_value(value.parts[_data_index], value.types) for _data_index in value.data]
@ -369,6 +371,7 @@ def load_gguf_checkpoint(gguf_checkpoint_path, return_tensors=False, model_to_lo
parsed_parameters = {k: {} for k in GGUF_TO_TRANSFORMERS_MAPPING}
architecture = read_field(reader, "general.architecture")[0]
# NOTE: Some GGUF checkpoints may miss `general.name` field in metadata
model_name = read_field(reader, "general.name")
updated_architecture = None

14
tests/quantization/ggml/test_ggml.py
View File

@ -298,6 +298,7 @@ class GgufModelTests(unittest.TestCase):
gemma2_model_id = "bartowski/gemma-2-2b-it-GGUF"
original_gemma3_text_model_id = "google/gemma-3-1b-it"
original_gemma3_vision_model_id = "google/gemma-3-4b-it"
gemma3_qat_model_id = "google/gemma-3-1b-it-qat-q4_0-gguf"
gemma3_text_model_id = "unsloth/gemma-3-1b-it-GGUF"
gemma3_vision_model_id = "unsloth/gemma-3-4b-it-GGUF"
@ -329,7 +330,7 @@ class GgufModelTests(unittest.TestCase):
q3_k_gemma2_model_id = "gemma-2-2b-it-Q3_K_L.gguf"
q8_0_gemma2_model_id = "gemma-2-2b-it-Q8_0.gguf"
fp32_gemma2_model_id = "gemma-2-2b-it-f32.gguf"
q2_k_gemma3_text_model_id = "gemma-3-1b-it-Q2_K.gguf"
q4_0_gemma3_qat_model_id = "gemma-3-1b-it-q4_0.gguf"
bf16_gemma3_text_model_id = "gemma-3-1b-it-BF16.gguf"
bf16_gemma3_vision_model_id = "gemma-3-4b-it-BF16.gguf"
@ -889,19 +890,20 @@ class GgufModelTests(unittest.TestCase):
else:
raise ValueError(f"Layer {layer_name} is not presented in GGUF model")
@require_read_token
@unittest.skipUnless(is_gguf_available("0.16.0"), "test requires gguf version >= 0.16.0")
def test_gemma3_text_q2_k(self):
def test_gemma3_qat_q4_0(self):
model = AutoModelForCausalLM.from_pretrained(
self.gemma3_text_model_id,
gguf_file=self.q2_k_gemma3_text_model_id,
self.gemma3_qat_model_id,
gguf_file=self.q4_0_gemma3_qat_model_id,
torch_dtype=torch.float16,
)
tokenizer = AutoTokenizer.from_pretrained(self.gemma3_text_model_id, gguf_file=self.q2_k_gemma3_text_model_id)
tokenizer = AutoTokenizer.from_pretrained(self.gemma3_qat_model_id, gguf_file=self.q4_0_gemma3_qat_model_id)
text = tokenizer(self.example_text, return_tensors="pt")["input_ids"]
out = model.generate(text, max_new_tokens=10)
EXPECTED_TEXT = "Hello,\n\nI'm looking for a small,"
EXPECTED_TEXT = 'Hello with the prompt, "What is the best way'
self.assertEqual(tokenizer.decode(out[0], skip_special_tokens=True), EXPECTED_TEXT)
@require_read_token