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bits.no_numerics

Identity numerics for passing through input as-is.

NoNumerics

Bases: QNumerics, PyTreeNode

No quantization, use a native type such as bf16.

Source code in src/fjformer/bits/no_numerics.py
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class NoNumerics(numerics.QNumerics, flax.struct.PyTreeNode):
    """No quantization, use a native type such as bf16."""

    # TODO(lew): This is a workaround. We should separate Stochastic Rounding.
    # noise_fn has no effect in NoNumerics.
    noise_fn: Optional[stochastic_rounding.NoiseFn] = None
    dtype: Optional[Any] = None

    # TODO(lew): This is a hack. We treat check isinstance(NoNumerics) and treat
    # it in a special way right now. These functions are never called
    def get_dtype(self):
        return None

    def fwd(self, x, context):
        pass

    def abs_val_mapped_to(self):
        pass

    def vjp_fwd(self, x, context):
        pass

    def vjp_bwd(self, res, grad):
        pass