DTypeConfig

class torch.ao.quantization.backend_config.DTypeConfig(input_dtype=None, output_dtype=None, weight_dtype=None, bias_dtype=None, is_dynamic=None)

Config for the set of supported input/output activation, weight, and bias data types for the patterns defined in BackendConfig.

Example usage:

>>> dtype_config1 = DTypeConfig(
...     input_dtype=torch.quint8,
...     output_dtype=torch.quint8,
...     weight_dtype=torch.qint8,
...     bias_dtype=torch.float)

>>> dtype_config2 = DTypeConfig(
...     input_dtype=DTypeWithConstraints(
...         dtype=torch.quint8,
...         quant_min_lower_bound=0,
...         quant_max_upper_bound=255,
...     ),
...     output_dtype=DTypeWithConstraints(
...         dtype=torch.quint8,
...         quant_min_lower_bound=0,
...         quant_max_upper_bound=255,
...     ),
...     weight_dtype=DTypeWithConstraints(
...         dtype=torch.qint8,
...         quant_min_lower_bound=-128,
...         quant_max_upper_bound=127,
...     ),
...     bias_dtype=torch.float)

>>> dtype_config1.input_dtype
torch.quint8

>>> dtype_config2.input_dtype
torch.quint8

>>> dtype_config2.input_dtype_with_constraints
DTypeWithConstraints(dtype=torch.quint8, quant_min_lower_bound=0, quant_max_upper_bound=255, scale_min_lower_bound=None, scale_max_upper_bound=None)

classmethod from_dict(dtype_config_dict)

Create a DTypeConfig from a dictionary with the following items (all optional):

“input_dtype”: torch.dtype or DTypeWithConstraints “output_dtype”: torch.dtype or DTypeWithConstraints “weight_dtype”: torch.dtype or DTypeWithConstraints “bias_type”: torch.dtype “is_dynamic”: bool

Return type:

DTypeConfig

to_dict()

Convert this DTypeConfig to a dictionary with the items described in from_dict().

Return type:

Dict[str, Any]