mygrad.no_autodiff

mygrad.no_autodiff = <mygrad._utils.graph_tracking._NoAutoDiff object>

Serves as a context manager and decorator for suspending all computational graph tracking.

Note that memory guarding does not occur in the no_autodiff context, so there is no need to nest this context with mem_guard_off.

Examples

Demonstrating no_autodiff as a context-manager

>>> import mygrad as mg
>>> with mg.no_autodiff:
>>>     # all computational graph tracking is suspended
>>>     # within the context
>>>     x = mg.arange(4.)
>>>     (4 * x).backward()  # no autodiff will occur
>>> x.grad is None

Demonstrating no_autodiff as a decorator

>>> @mg.no_autodiff
... def func():
...     # No graph-tracking will occur within
...     # the body of this function
...     pass