Skip to main content

/

Docs

Nightly

v25.1

Log in

Python module

layer

Layer​

class max.pipelines.nn.layer.Layer

Base Layer class.

Currently, only functionality is for adding hooks to the call function of each layer to support testing, debugging or profiling.

LayerList​

class max.pipelines.nn.layer.LayerList(layers: Sequence[Layer])

Stores a list of layers.

Can be used as a regular python list.

append()​

append(layer: Layer)

extend()​

extend(layer: Layer)

insert()​

insert(i, layer: Layer)

sublayers​

property sublayers*: dict[str, max.pipelines.nn.layer.layer.LayerV2]*

LayerV2​

class max.pipelines.nn.layer.LayerV2

(new) Base class for model layers with weight and device management.

This will be merged with the above class once all layers have been moved to V2.

layer_weights​

property layer_weights*: dict[str, max.graph.weight.Weight]*

sublayers​

property sublayers*: dict[str, max.pipelines.nn.layer.layer.LayerV2]*

to()​

to(*devices: DeviceRef, sharding_strategy: ShardingStrategy | None = None) → None

add_layer_hook()​

max.pipelines.nn.layer.add_layer_hook(fn: Callable[[Layer, Tuple[Any, ...], Dict[str, Any], Any], Any]) → None

Adds a hook to call a function after each layer’s __call__.

The function will be passed four inputs: the layer, input_args, input_kwargs and outputs. The function can either return None or new outputs that will replace the layer returned outputs.

Note that input and outputs contain graph Values, which show limited information (like shape and dtype). You can still see the computed values if you include the Value in the graph.output op, or call value.print.

Example of printing debug inputs:

def print_info(layer, args, kwargs, outputs):
    print("Layer:", type(layer).__name__)
    print("Input args:", args)
    print("Input kwargs:", kwargs)
    print("Outputs:", outputs)
    return outputs

add_layer_hook(print_info)
def print_info(layer, args, kwargs, outputs):
    print("Layer:", type(layer).__name__)
    print("Input args:", args)
    print("Input kwargs:", kwargs)
    print("Outputs:", outputs)
    return outputs

add_layer_hook(print_info)

clear_hooks()​

max.pipelines.nn.layer.clear_hooks()

Remove all hooks.

recursive_named_layers()​

max.pipelines.nn.layer.recursive_named_layers(parent: LayerV2) → Iterable[tuple[str, max.pipelines.nn.layer.layer.LayerV2]]

Recursively walks through the layers and generates names.