Skip to content

[Relax][PyTorch] Add run_ep_decomposition flag to control PyTorch decomposition #18399

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
mshr-h merged 2 commits into from
Oct 26, 2025
Merged

[Relax][PyTorch] Add run_ep_decomposition flag to control PyTorch decomposition #18399

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
1646a52
finish1:
tlopex Oct 25, 2025
86501ed
finish2
tlopex Oct 25, 2025
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 10 additions & 2 deletions python/tvm/relax/frontend/torch/exported_program_translator.py
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1197,6 +1197,7 @@ def from_exported_program(
keep_params_as_input: bool = False,
unwrap_unit_return_tuple: bool = False,
no_bind_return_tuple: bool = False,
run_ep_decomposition: bool = False,
) -> tvm.IRModule:
"""Convert a PyTorch ExportedProgram to a Relax program

Expand All @@ -1216,6 +1217,12 @@ def from_exported_program(
A boolean flag indicating whether to bind the return tuple as a relax var.
If the flag is true and the return value is a tuple, it will not bind it to a var.

run_ep_decomposition : bool
A boolean flag indicating whether to run PyTorch's decomposition on the
exported program before translation. When True, high-level operators will
be decomposed into their constituent parts. Defaults to False for backward
compatibility.

Returns
-------
output : tvm.IRModule
Expand Down Expand Up @@ -1255,8 +1262,9 @@ def forward(self, input):
# Use the importer to import the ExportedProgram to Relax.
mod: tvm.IRModule = from_exported_program(exported_program)
"""
# decompose into Core ATen operators
exported_program.run_decompositions()
# Conditionally decompose into Core ATen operators
if run_ep_decomposition:
exported_program = exported_program.run_decompositions()
Comment on lines +1266 to +1267

@gemini-code-assist gemini-code-assist Bot Oct 25, 2025

Copy link
Copy Markdown
Contributor

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

medium

Since this flag is temporary, it would be good practice to add a TODO comment here to track its future removal. This helps ensure the codebase is cleaned up after the migration is complete.

# TODO(user): Remove this flag and always run decomposition once all operators are supported.
if run_ep_decomposition:
    exported_program = exported_program.run_decompositions()

It would also be helpful to note the temporary nature of this flag in its docstring.


return ExportedProgramImporter().from_exported_program(
exported_program,
Expand Down
Loading