mirror of
https://github.com/ggerganov/llama.cpp.git
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7ce2c77f88
* gguf : add support for I64 and F64 arrays GGML currently does not support I64 or F64 arrays and they are not often used in machine learning, however if in the future the need arises, it would be nice to add them now, so that the types are next to the other types I8, I16, I32 in the enums, and it also reserves their type number. Furthermore, with this addition the GGUF format becomes very usable for most computational applications of NumPy (being compatible with the most common NumPy dtypes: i8, i16, i32, i64, f32, f64), providing a faster, and more versatile alternative to the `npz` format, and a simpler alternative to the `hdf5` format. The change in this PR seems small, not significantly increasing the maintenance burden. I tested this from Python using GGUFWriter/Reader and `gguf-dump`, as well as from C, everything seems to work. * Fix compiler warnings
471 lines
17 KiB
Python
471 lines
17 KiB
Python
from __future__ import annotations
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import os
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import shutil
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import struct
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import tempfile
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from enum import Enum, auto
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from io import BufferedWriter
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from typing import IO, Any, Sequence
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import numpy as np
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from .constants import (
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GGUF_DEFAULT_ALIGNMENT,
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GGUF_MAGIC,
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GGUF_VERSION,
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GGMLQuantizationType,
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GGUFEndian,
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GGUFValueType,
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Keys,
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RopeScalingType,
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PoolingType,
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TokenType,
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)
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class WriterState(Enum):
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EMPTY = auto()
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HEADER = auto()
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KV_DATA = auto()
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TI_DATA = auto()
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class GGUFWriter:
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fout: BufferedWriter
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temp_file: tempfile.SpooledTemporaryFile[bytes] | None
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tensors: list[np.ndarray[Any, Any]]
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_simple_value_packing = {
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GGUFValueType.UINT8: "B",
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GGUFValueType.INT8: "b",
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GGUFValueType.UINT16: "H",
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GGUFValueType.INT16: "h",
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GGUFValueType.UINT32: "I",
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GGUFValueType.INT32: "i",
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GGUFValueType.FLOAT32: "f",
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GGUFValueType.UINT64: "Q",
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GGUFValueType.INT64: "q",
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GGUFValueType.FLOAT64: "d",
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GGUFValueType.BOOL: "?",
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}
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def __init__(
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self, path: os.PathLike[str] | str, arch: str, use_temp_file: bool = True,
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endianess: GGUFEndian = GGUFEndian.LITTLE,
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):
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self.fout = open(path, "wb")
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self.arch = arch
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self.endianess = endianess
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self.offset_tensor = 0
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self.data_alignment = GGUF_DEFAULT_ALIGNMENT
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self.kv_data = bytearray()
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self.kv_data_count = 0
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self.ti_data = bytearray()
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self.ti_data_count = 0
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self.use_temp_file = use_temp_file
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self.temp_file = None
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self.tensors = []
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print("gguf: This GGUF file is for {0} Endian only".format(
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"Big" if self.endianess == GGUFEndian.BIG else "Little",
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))
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self.state = WriterState.EMPTY
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self.add_architecture()
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def write_header_to_file(self) -> None:
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if self.state is not WriterState.EMPTY:
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raise ValueError(f'Expected output file to be empty, got {self.state}')
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self._write_packed("<I", GGUF_MAGIC, skip_pack_prefix = True)
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self._write_packed("I", GGUF_VERSION)
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self._write_packed("Q", self.ti_data_count)
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self._write_packed("Q", self.kv_data_count)
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self.flush()
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self.state = WriterState.HEADER
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def write_kv_data_to_file(self) -> None:
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if self.state is not WriterState.HEADER:
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raise ValueError(f'Expected output file to contain the header, got {self.state}')
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self.fout.write(self.kv_data)
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self.flush()
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self.state = WriterState.KV_DATA
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def write_ti_data_to_file(self) -> None:
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if self.state is not WriterState.KV_DATA:
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raise ValueError(f'Expected output file to contain KV data, got {self.state}')
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self.fout.write(self.ti_data)
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self.flush()
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self.state = WriterState.TI_DATA
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def add_key(self, key: str) -> None:
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self.add_val(key, GGUFValueType.STRING, add_vtype=False)
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def add_uint8(self, key: str, val: int) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.UINT8)
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def add_int8(self, key: str, val: int) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.INT8)
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def add_uint16(self, key: str, val: int) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.UINT16)
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def add_int16(self, key: str, val: int) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.INT16)
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def add_uint32(self, key: str, val: int) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.UINT32)
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def add_int32(self, key: str, val: int) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.INT32)
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def add_float32(self, key: str, val: float) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.FLOAT32)
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def add_uint64(self, key: str, val: int) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.UINT64)
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def add_int64(self, key: str, val: int) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.INT64)
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def add_float64(self, key: str, val: float) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.FLOAT64)
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def add_bool(self, key: str, val: bool) -> None:
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self.add_key(key)
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self.add_val(val, GGUFValueType.BOOL)
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def add_string(self, key: str, val: str) -> None:
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if not val:
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return
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self.add_key(key)
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self.add_val(val, GGUFValueType.STRING)
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def add_array(self, key: str, val: Sequence[Any]) -> None:
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if not isinstance(val, Sequence):
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raise ValueError("Value must be a sequence for array type")
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self.add_key(key)
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self.add_val(val, GGUFValueType.ARRAY)
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def add_val(self, val: Any, vtype: GGUFValueType | None = None, add_vtype: bool = True) -> None:
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if vtype is None:
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vtype = GGUFValueType.get_type(val)
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if add_vtype:
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self.kv_data += self._pack("I", vtype)
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self.kv_data_count += 1
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pack_fmt = self._simple_value_packing.get(vtype)
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if pack_fmt is not None:
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self.kv_data += self._pack(pack_fmt, val, skip_pack_prefix = vtype == GGUFValueType.BOOL)
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elif vtype == GGUFValueType.STRING:
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encoded_val = val.encode("utf8") if isinstance(val, str) else val
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self.kv_data += self._pack("Q", len(encoded_val))
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self.kv_data += encoded_val
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elif vtype == GGUFValueType.ARRAY and isinstance(val, Sequence) and val:
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ltype = GGUFValueType.get_type(val[0])
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if not all(GGUFValueType.get_type(i) is ltype for i in val[1:]):
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raise ValueError("All items in a GGUF array should be of the same type")
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self.kv_data += self._pack("I", ltype)
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self.kv_data += self._pack("Q", len(val))
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for item in val:
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self.add_val(item, add_vtype=False)
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else:
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raise ValueError("Invalid GGUF metadata value type or value")
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@staticmethod
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def ggml_pad(x: int, n: int) -> int:
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return ((x + n - 1) // n) * n
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def add_tensor_info(
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self, name: str, tensor_shape: Sequence[int], tensor_dtype: np.dtype[np.float16] | np.dtype[np.float32],
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tensor_nbytes: int, raw_dtype: GGMLQuantizationType | None = None,
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) -> None:
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if self.state is not WriterState.EMPTY:
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raise ValueError(f'Expected output file to be empty, got {self.state}')
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encoded_name = name.encode("utf8")
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self.ti_data += self._pack("Q", len(encoded_name))
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self.ti_data += encoded_name
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n_dims = len(tensor_shape)
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self.ti_data += self._pack("I", n_dims)
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for i in range(n_dims):
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self.ti_data += self._pack("Q", tensor_shape[n_dims - 1 - i])
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if raw_dtype is None:
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if tensor_dtype == np.float16:
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dtype = GGMLQuantizationType.F16
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elif tensor_dtype == np.float32:
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dtype = GGMLQuantizationType.F32
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elif tensor_dtype == np.float64:
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dtype = GGMLQuantizationType.F64
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elif tensor_dtype == np.int8:
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dtype = GGMLQuantizationType.I8
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elif tensor_dtype == np.int16:
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dtype = GGMLQuantizationType.I16
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elif tensor_dtype == np.int32:
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dtype = GGMLQuantizationType.I32
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elif tensor_dtype == np.int64:
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dtype = GGMLQuantizationType.I64
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else:
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raise ValueError("Only F16, F32, F64, I8, I16, I32, I64 tensors are supported for now")
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else:
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dtype = raw_dtype
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self.ti_data += self._pack("I", dtype)
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self.ti_data += self._pack("Q", self.offset_tensor)
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self.offset_tensor += GGUFWriter.ggml_pad(tensor_nbytes, self.data_alignment)
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self.ti_data_count += 1
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def add_tensor(
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self, name: str, tensor: np.ndarray[Any, Any], raw_shape: Sequence[int] | None = None,
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raw_dtype: GGMLQuantizationType | None = None,
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) -> None:
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if self.endianess == GGUFEndian.BIG:
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tensor.byteswap(inplace=True)
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if self.use_temp_file and self.temp_file is None:
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fp = tempfile.SpooledTemporaryFile(mode="w+b", max_size=256 * 1024 * 1024)
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fp.seek(0)
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self.temp_file = fp
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shape: Sequence[int] = raw_shape if raw_shape is not None else tensor.shape
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self.add_tensor_info(name, shape, tensor.dtype, tensor.nbytes, raw_dtype = raw_dtype)
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if self.temp_file is None:
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self.tensors.append(tensor)
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return
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tensor.tofile(self.temp_file)
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self.write_padding(self.temp_file, tensor.nbytes)
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def write_padding(self, fp: IO[bytes], n: int, align: int | None = None) -> None:
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pad = GGUFWriter.ggml_pad(n, align if align is not None else self.data_alignment) - n
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if pad != 0:
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fp.write(bytes([0] * pad))
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def write_tensor_data(self, tensor: np.ndarray[Any, Any]) -> None:
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if self.state is not WriterState.TI_DATA:
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raise ValueError(f'Expected output file to contain tensor info, got {self.state}')
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if self.endianess == GGUFEndian.BIG:
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tensor.byteswap(inplace=True)
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self.write_padding(self.fout, self.fout.tell())
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tensor.tofile(self.fout)
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self.write_padding(self.fout, tensor.nbytes)
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def write_tensors_to_file(self) -> None:
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self.write_ti_data_to_file()
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self.write_padding(self.fout, self.fout.tell())
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if self.temp_file is None:
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while True:
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try:
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tensor = self.tensors.pop(0)
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except IndexError:
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break
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tensor.tofile(self.fout)
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self.write_padding(self.fout, tensor.nbytes)
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return
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self.temp_file.seek(0)
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shutil.copyfileobj(self.temp_file, self.fout)
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self.flush()
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self.temp_file.close()
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def flush(self) -> None:
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self.fout.flush()
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def close(self) -> None:
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self.fout.close()
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def add_architecture(self) -> None:
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self.add_string(Keys.General.ARCHITECTURE, self.arch)
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def add_author(self, author: str) -> None:
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self.add_string(Keys.General.AUTHOR, author)
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def add_tensor_data_layout(self, layout: str) -> None:
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self.add_string(Keys.LLM.TENSOR_DATA_LAYOUT.format(arch=self.arch), layout)
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def add_url(self, url: str) -> None:
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self.add_string(Keys.General.URL, url)
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def add_description(self, description: str) -> None:
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self.add_string(Keys.General.DESCRIPTION, description)
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def add_source_url(self, url: str) -> None:
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self.add_string(Keys.General.SOURCE_URL, url)
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def add_source_hf_repo(self, repo: str) -> None:
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self.add_string(Keys.General.SOURCE_HF_REPO, repo)
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def add_file_type(self, ftype: int) -> None:
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self.add_uint32(Keys.General.FILE_TYPE, ftype)
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def add_name(self, name: str) -> None:
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self.add_string(Keys.General.NAME, name)
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def add_quantization_version(self, quantization_version: GGMLQuantizationType) -> None:
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self.add_uint32(
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Keys.General.QUANTIZATION_VERSION, quantization_version)
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def add_custom_alignment(self, alignment: int) -> None:
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self.data_alignment = alignment
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self.add_uint32(Keys.General.ALIGNMENT, alignment)
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def add_vocab_size(self, size: int) -> None:
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self.add_uint32(Keys.LLM.VOCAB_SIZE.format(arch=self.arch), size)
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def add_context_length(self, length: int) -> None:
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self.add_uint32(Keys.LLM.CONTEXT_LENGTH.format(arch=self.arch), length)
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def add_embedding_length(self, length: int) -> None:
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self.add_uint32(Keys.LLM.EMBEDDING_LENGTH.format(arch=self.arch), length)
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def add_block_count(self, length: int) -> None:
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self.add_uint32(Keys.LLM.BLOCK_COUNT.format(arch=self.arch), length)
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def add_feed_forward_length(self, length: int) -> None:
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self.add_uint32(Keys.LLM.FEED_FORWARD_LENGTH.format(arch=self.arch), length)
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def add_parallel_residual(self, use: bool) -> None:
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self.add_bool(Keys.LLM.USE_PARALLEL_RESIDUAL.format(arch=self.arch), use)
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def add_head_count(self, count: int) -> None:
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self.add_uint32(Keys.Attention.HEAD_COUNT.format(arch=self.arch), count)
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def add_head_count_kv(self, count: int) -> None:
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self.add_uint32(Keys.Attention.HEAD_COUNT_KV.format(arch=self.arch), count)
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def add_key_length(self, length: int) -> None:
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self.add_uint32(Keys.Attention.KEY_LENGTH.format(arch=self.arch), length)
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def add_value_length(self, length: int) -> None:
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self.add_uint32(Keys.Attention.VALUE_LENGTH.format(arch=self.arch), length)
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def add_max_alibi_bias(self, bias: float) -> None:
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self.add_float32(Keys.Attention.MAX_ALIBI_BIAS.format(arch=self.arch), bias)
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def add_clamp_kqv(self, value: float) -> None:
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self.add_float32(Keys.Attention.CLAMP_KQV.format(arch=self.arch), value)
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def add_expert_count(self, count: int) -> None:
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self.add_uint32(Keys.LLM.EXPERT_COUNT.format(arch=self.arch), count)
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def add_expert_used_count(self, count: int) -> None:
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self.add_uint32(Keys.LLM.EXPERT_USED_COUNT.format(arch=self.arch), count)
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def add_layer_norm_eps(self, value: float) -> None:
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self.add_float32(Keys.Attention.LAYERNORM_EPS.format(arch=self.arch), value)
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def add_layer_norm_rms_eps(self, value: float) -> None:
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self.add_float32(Keys.Attention.LAYERNORM_RMS_EPS.format(arch=self.arch), value)
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def add_causal_attention(self, value: bool) -> None:
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self.add_bool(Keys.Attention.CAUSAL.format(arch=self.arch), value)
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def add_pooling_type(self, value: PoolingType) -> None:
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self.add_uint32(Keys.LLM.POOLING_TYPE.format(arch=self.arch), value.value)
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def add_rope_dimension_count(self, count: int) -> None:
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self.add_uint32(Keys.Rope.DIMENSION_COUNT.format(arch=self.arch), count)
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def add_rope_freq_base(self, value: float) -> None:
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self.add_float32(Keys.Rope.FREQ_BASE.format(arch=self.arch), value)
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def add_rope_scaling_type(self, value: RopeScalingType) -> None:
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self.add_string(Keys.Rope.SCALING_TYPE.format(arch=self.arch), value.value)
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def add_rope_scaling_factor(self, value: float) -> None:
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self.add_float32(Keys.Rope.SCALING_FACTOR.format(arch=self.arch), value)
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def add_rope_scaling_orig_ctx_len(self, value: int) -> None:
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self.add_uint32(Keys.Rope.SCALING_ORIG_CTX_LEN.format(arch=self.arch), value)
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def add_rope_scaling_finetuned(self, value: bool) -> None:
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self.add_bool(Keys.Rope.SCALING_FINETUNED.format(arch=self.arch), value)
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def add_ssm_conv_kernel(self, value: int) -> None:
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self.add_uint32(Keys.SSM.CONV_KERNEL.format(arch=self.arch), value)
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def add_ssm_inner_size(self, value: int) -> None:
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self.add_uint32(Keys.SSM.INNER_SIZE.format(arch=self.arch), value)
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def add_ssm_state_size(self, value: int) -> None:
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self.add_uint32(Keys.SSM.STATE_SIZE.format(arch=self.arch), value)
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def add_ssm_time_step_rank(self, value: int) -> None:
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self.add_uint32(Keys.SSM.TIME_STEP_RANK.format(arch=self.arch), value)
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def add_tokenizer_model(self, model: str) -> None:
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self.add_string(Keys.Tokenizer.MODEL, model)
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def add_token_list(self, tokens: Sequence[str] | Sequence[bytes] | Sequence[bytearray]) -> None:
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self.add_array(Keys.Tokenizer.LIST, tokens)
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def add_token_merges(self, merges: Sequence[str] | Sequence[bytes] | Sequence[bytearray]) -> None:
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self.add_array(Keys.Tokenizer.MERGES, merges)
|
|
|
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def add_token_types(self, types: Sequence[TokenType] | Sequence[int]) -> None:
|
|
self.add_array(Keys.Tokenizer.TOKEN_TYPE, types)
|
|
|
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def add_token_type_count(self, value: int) -> None:
|
|
self.add_uint32(Keys.Tokenizer.TOKEN_TYPE_COUNT, value)
|
|
|
|
def add_token_scores(self, scores: Sequence[float]) -> None:
|
|
self.add_array(Keys.Tokenizer.SCORES, scores)
|
|
|
|
def add_bos_token_id(self, id: int) -> None:
|
|
self.add_uint32(Keys.Tokenizer.BOS_ID, id)
|
|
|
|
def add_eos_token_id(self, id: int) -> None:
|
|
self.add_uint32(Keys.Tokenizer.EOS_ID, id)
|
|
|
|
def add_unk_token_id(self, id: int) -> None:
|
|
self.add_uint32(Keys.Tokenizer.UNK_ID, id)
|
|
|
|
def add_sep_token_id(self, id: int) -> None:
|
|
self.add_uint32(Keys.Tokenizer.SEP_ID, id)
|
|
|
|
def add_pad_token_id(self, id: int) -> None:
|
|
self.add_uint32(Keys.Tokenizer.PAD_ID, id)
|
|
|
|
def add_cls_token_id(self, id: int) -> None:
|
|
self.add_uint32(Keys.Tokenizer.CLS_ID, id)
|
|
|
|
def add_mask_token_id(self, id: int) -> None:
|
|
self.add_uint32(Keys.Tokenizer.MASK_ID, id)
|
|
|
|
def add_add_bos_token(self, value: bool) -> None:
|
|
self.add_bool(Keys.Tokenizer.ADD_BOS, value)
|
|
|
|
def add_add_eos_token(self, value: bool) -> None:
|
|
self.add_bool(Keys.Tokenizer.ADD_EOS, value)
|
|
|
|
def add_add_space_prefix(self, value: bool) -> None:
|
|
self.add_bool(Keys.Tokenizer.ADD_PREFIX, value)
|
|
|
|
def add_chat_template(self, value: str) -> None:
|
|
self.add_string(Keys.Tokenizer.CHAT_TEMPLATE, value)
|
|
|
|
def _pack(self, fmt: str, value: Any, skip_pack_prefix: bool = False) -> bytes:
|
|
pack_prefix = ''
|
|
if not skip_pack_prefix:
|
|
pack_prefix = '<' if self.endianess == GGUFEndian.LITTLE else '>'
|
|
return struct.pack(f'{pack_prefix}{fmt}', value)
|
|
|
|
def _write_packed(self, fmt: str, value: Any, skip_pack_prefix: bool = False) -> None:
|
|
self.fout.write(self._pack(fmt, value, skip_pack_prefix))
|