diff options
Diffstat (limited to 'convert-hf-to-gguf.py')
| -rwxr-xr-x | convert-hf-to-gguf.py | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/convert-hf-to-gguf.py b/convert-hf-to-gguf.py index 1178d63a..aae3a5e8 100755 --- a/convert-hf-to-gguf.py +++ b/convert-hf-to-gguf.py @@ -197,6 +197,8 @@ class Model: return Phi2Model if model_architecture == "PlamoForCausalLM": return PlamoModel + if model_architecture == "CodeShellForCausalLM": + return CodeShellModel return Model def _is_model_safetensors(self) -> bool: @@ -242,6 +244,8 @@ class Model: return gguf.MODEL_ARCH.PHI2 if arch == "PlamoForCausalLM": return gguf.MODEL_ARCH.PLAMO + if arch == "CodeShellForCausalLM": + return gguf.MODEL_ARCH.CODESHELL raise NotImplementedError(f'Architecture "{arch}" not supported!') @@ -1175,6 +1179,69 @@ class PlamoModel(Model): self.gguf_writer.add_tensor(new_name, data) +class CodeShellModel(Model): + def set_gguf_parameters(self): + block_count = self.hparams["n_layer"] + + self.gguf_writer.add_name("CodeShell") + self.gguf_writer.add_context_length(self.hparams["n_positions"]) + self.gguf_writer.add_embedding_length(self.hparams["n_embd"]) + self.gguf_writer.add_feed_forward_length(4 * self.hparams["n_embd"]) + self.gguf_writer.add_block_count(block_count) + self.gguf_writer.add_head_count(self.hparams["n_head"]) + self.gguf_writer.add_head_count_kv(self.hparams["num_query_groups"]) + self.gguf_writer.add_layer_norm_eps(self.hparams["layer_norm_epsilon"]) + self.gguf_writer.add_file_type(self.ftype) + self.gguf_writer.add_rope_freq_base(10000.0) + self.gguf_writer.add_rope_scaling_type(gguf.RopeScalingType.LINEAR) + self.gguf_writer.add_rope_scaling_factor(1.0) + + def write_tensors(self): + block_count = self.hparams.get("n_layers", self.hparams.get("num_hidden_layers", self.hparams.get("n_layer"))) + tensor_map = gguf.get_tensor_name_map(self.model_arch, block_count) + tensors = dict(self.get_tensors()) + has_lm_head = "lm_head.weight" in tensors.keys() or "output.weight" in tensors.keys() + for name, data_torch in tensors.items(): + # we don't need these + if name.endswith((".attn.rotary_emb.inv_freq")): + continue + + old_dtype = data_torch.dtype + + # convert any unsupported data types to float32 + if data_torch.dtype not in (torch.float16, torch.float32): + data_torch = data_torch.to(torch.float32) + + data = data_torch.squeeze().numpy() + + # map tensor names + new_name = tensor_map.get_name(name, try_suffixes=(".weight", ".bias")) + if new_name is None: + print(f"Can not map tensor {name!r}") + sys.exit() + + n_dims = len(data.shape) + data_dtype = data.dtype + + # if f32 desired, convert any float16 to float32 + if self.ftype == 0 and data_dtype == np.float16: + data = data.astype(np.float32) + + # TODO: Why cant we use these float16 as-is? There should be not reason to store float16 as float32 + if self.ftype == 1 and data_dtype == np.float16 and n_dims == 1: + data = data.astype(np.float32) + + # if f16 desired, convert any float32 2-dim weight tensors to float16 + if self.ftype == 1 and data_dtype == np.float32 and name.endswith(".weight") and n_dims == 2: + data = data.astype(np.float16) + + print(f"{new_name}, n_dims = {n_dims}, {old_dtype} --> {data.dtype}") + + self.gguf_writer.add_tensor(new_name, data) + + if not has_lm_head and name == "transformer.wte.weight": + self.gguf_writer.add_tensor("output.weight", data) + print(name, f"=> output.weight, shape = {data.shape}, {old_dtype} --> {data.dtype}") ###### CONVERSION LOGIC ###### |