GB0034

Graph-Break Type

Short name describing what triggered the graph break

Data-dependent assertion failed (cannot compile partial graph)

Values or code snippet captured at the break point

value: {value}

Explanation of why the graph break was triggered

Dynamo has determined when encountering a data-dependent assert failure that it should not compile the partial graph.

Hints on how to resolve the graph break

Use torch._assert() to raise a hard AssertionError when the check fails.
This error will propagate back the user code
that called the compiled function (i.e. Dynamo will not trace any exception handling).
Remove the assert statement.
Move the assert statement outside of any context managers in order to graph break with
partial graph compilation (if fullgraph=False).
This graph break is fundamental - it is unlikely that Dynamo will ever be able to trace through your code. Consider finding a workaround.