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--- |
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base_model: |
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- llava-hf/llava-onevision-qwen2-7b-ov-hf |
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--- |
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## Creation |
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```python |
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from transformers import AutoProcessor, LlavaOnevisionForConditionalGeneration |
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from llmcompressor.modifiers.quantization import QuantizationModifier |
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from llmcompressor.transformers import oneshot, wrap_hf_model_class |
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MODEL_ID = "llava-hf/llava-onevision-qwen2-7b-ov-hf" |
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# Load model. |
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model_class = wrap_hf_model_class(LlavaOnevisionForConditionalGeneration) |
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model = model_class.from_pretrained(MODEL_ID, device_map="auto", torch_dtype="auto") |
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processor = AutoProcessor.from_pretrained(MODEL_ID) |
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# Configure the quantization algorithm and scheme. |
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# In this case, we: |
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# * quantize the weights to fp8 with per channel via ptq |
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# * quantize the activations to fp8 with dynamic per token |
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recipe = QuantizationModifier( |
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targets="Linear", |
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scheme="FP8_DYNAMIC", |
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ignore=["re:.*lm_head", "re:multi_modal_projector.*", "re:vision_tower.*"], |
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) |
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# Apply quantization and save to disk in compressed-tensors format. |
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SAVE_DIR = MODEL_ID.split("/")[1] + "-FP8-dynamic" |
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oneshot(model=model, recipe=recipe, output_dir=SAVE_DIR) |
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processor.save_pretrained(SAVE_DIR) |
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# Confirm generations of the quantized model look sane. |
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print("========== SAMPLE GENERATION ==============") |
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input_ids = processor(text="Hello my name is", return_tensors="pt").input_ids.to("cuda") |
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output = model.generate(input_ids, max_new_tokens=20) |
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print(processor.decode(output[0])) |
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print("==========================================") |
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``` |