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cc7200bf12
* move conversion code to a dedicated conversion directory and split the files akin to the src/models architecture --------- Co-authored-by: Sigbjørn Skjæret <sigbjorn.skjaeret@scala.com>
47 lines
2 KiB
Python
47 lines
2 KiB
Python
from __future__ import annotations
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from typing import Callable, TYPE_CHECKING
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if TYPE_CHECKING:
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from torch import Tensor
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from .base import MmprojModel, ModelBase, gguf
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@ModelBase.register("Idefics3ForConditionalGeneration", "SmolVLMForConditionalGeneration")
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class SmolVLMModel(MmprojModel):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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if self.hparams["model_type"] == "smolvlm_vision":
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# fix for SmolVLM2, missing some keys in config.json
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# default values are taken from transformers code
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self.hparams["hidden_size"] = self.hparams.get("hidden_size", 1152)
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self.hparams["num_attention_heads"] = self.hparams.get("num_attention_heads", 16)
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self.hparams["intermediate_size"] = self.hparams.get("intermediate_size", 3072)
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def set_gguf_parameters(self):
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super().set_gguf_parameters()
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self.gguf_writer.add_clip_projector_type(gguf.VisionProjectorType.IDEFICS3)
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self.gguf_writer.add_vision_attention_layernorm_eps(self.hparams.get("layer_norm_eps", 1e-5))
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self.gguf_writer.add_vision_projector_scale_factor(self.global_config.get("scale_factor", 2))
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self.gguf_writer.add_vision_use_gelu(True)
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# Add the preprocessor longest edge size
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preproc_image_size = self.preprocessor_config.get("size", {}).get("longest_edge", self.image_size)
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self.gguf_writer.add_vision_preproc_image_size(preproc_image_size)
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def tensor_force_quant(self, name, new_name, bid, n_dims):
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if ".embeddings." in name:
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return gguf.GGMLQuantizationType.F32
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return super().tensor_force_quant(name, new_name, bid, n_dims)
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@classmethod
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def filter_tensors(cls, item: tuple[str, Callable[[], Tensor]]) -> tuple[str, Callable[[], Tensor]] | None:
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name, gen = item
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is_vision_tensor = "vision_tower" in name or "vision_model" in name or "model.connector" in name
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if not is_vision_tensor:
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return None
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return super().filter_tensors(item)
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