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Mojo struct

DeviceExternalFunction

struct DeviceExternalFunction

Represents an external device function loaded from PTX/SASS assembly.

This class provides functionality to load and execute pre-compiled GPU functions from assembly code rather than compiling them from Mojo source. This is useful for integrating with existing CUDA/HIP code or for using specialized assembly optimizations.

The DeviceExternalFunction handles reference counting of the underlying device function handle and provides methods for launching the function on a GPU with specified execution configuration.

Implemented traits

AnyType, Deinitable, Movable

Methods

__init__

def __init__(out self, *, copy: Self)

Creates a copy of an existing device function by incrementing its reference count.

Args:

• ​copy (Self): The device function to copy.

__deinit__

def __deinit__(deinit self)

Releases resources associated with this device function.

get_attribute

def get_attribute(self, attr: Attribute) -> Int

Retrieves a specific attribute of this device function.

Args:

• ​attr (Attribute): The attribute to query.

Returns:

Int: The value of the requested attribute.

Raises:

If the attribute query fails.