o Me@sNdZddlZddlmmZddlmZgdZ ddZ ddZ d d Z dS) z(Keras Utilities for DTensor related API.N) dtensor_api) alphabetaZbiasZ depthwiseZ embeddingsgammaZkernelZ moving_meanZmoving_varianceZ pointwiseZ recurrentcfdd}tjjj|dS)aA decorator for injecting layout information to layer.__init__. Layout will be a new param for any of the weights for all the keras layers. Adding the param to all the __init__ method will be a big/duplicated work. This decorator is design to reduce and code duplication and make it easy to add/remove the dtensor feature if needed. Sample usage: ```python class Dense(tf.keras.layer.Layer): @allow_initializer_layout def __init__(self, units, kernel_initializer='zeros', bias_initializer='zeros', **kwargs): super().__init__(**kwargs) d = Dense(units=8, kernel_layout=layout1, bias_layout=layout2) d.kernel_layout == layout1 d.bias_layout == layout2 ``` By adding this annotation, it will: 1. Filter out the kwargs based on some keywords, eg if the 'kernel_initialzer' appears in method signature, then it will try to pop the 'kernel_layout' if it presents. Same for "bias" and "recurrent_kernel", etc. This will make sure the layout related param is not passed to `BaseLayer.__init__`, which will raise error about unexpect keyword args. 2. Set the self.kernel/bias_layout attribute after the `__init__` method is called. Keras framework will use those fields to create weights down the stream. Args: init_method: the `__init__` method of the Keras layer to annotate. Returns: the annotated __init__ method. cs~t}i}tD]}|d|jvr"||dd}|r"|||d<q |g|Ri||D] \}}t|||q2dS)NZ _initializerZ_layout)inspect signatureKERAS_VARIABLE_NAMES parameterspopitemssetattr)Zlayer_instanceargskwargsrZ layout_argsZ variable_namelayoutZlayout_param_name init_methodCD:\Projects\ConvertPro\env\Lib\site-packages\keras/dtensor/utils.py_wrap_functionUs  z0allow_initializer_layout.._wrap_functiontargetZdecorator_functfZ __internal__ decoratorZmake_decoratorrrrrrallow_initializer_layout)s ,rcr)aInject DTensor mesh information to an object. This is useful for keras object like `Metric` and `Optimizer` which need DTensor mesh to create the weights, but doesn't want to change the current public API interface. This is for temporary usage and eventually the mesh/layout information will be public arguments in the `__init__` method. Sample usage: ```python class Accuracy(tf.keras.metrics.Metric): @inject_mesh def __init__(self, name='accuracy', dtype=None): super().__init__(**kwargs) acc = Accuracy(mesh=mesh) assert acc._mesh == mesh ``` Args: init_method: the `__init__` method of the Keras class to annotate. Returns: the annotated __init__ method. cs4|dd}|dur ||_|g|Ri|dS)Nmesh)r Z_mesh)instancerrrrrrrs z#inject_mesh.._wrap_functionrrrrrr inject_meshls  rcOsX|r%t|j||i|}t||WdS1s wY||i|S)aInvoke the function with inputs and relayout the result. Args: fn: the function to invoke. layout: if not None, the output of the fn will be relayout with this. *args: positional arguments to be called with fn. **kwargs: keyword arguments to be called with fn. Returns: The output of fn, with potential relayout with the layout specified. N)dtensorZrun_onrZrelayout)fnrrrresultrrrcall_with_layouts    r#) __doc__rZtensorflow.compat.v2compatv2rZ keras.dtensorrr r rrr#rrrrs C +