Add main tensor conversion API for packed tensors #3029
Merged
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/ao/3029
Note: Links to docs will display an error until the docs builds have been completed. ⏳ No Failures, 2 PendingAs of commit b24d0d4 with merge base 122b307 ( This comment was automatically generated by Dr. CI and updates every 15 minutes. |
meta-cla
bot
added
the
CLA Signed
jerryzh168
force-pushed
the
add-main-convert-api
branch
from
44d4404 to
da45eb6
Compare
jerryzh168
added
the
topic: not user facing
jerryzh168
force-pushed
the
add-main-convert-api
branch
from
da45eb6 to
99020e5
Compare
andrewor14
approved these changes
Sep 18, 2025
Summary: Added `_convert_to_packed_tensor_based_on_current_hardware` to convert a tensor from the unpacked / plain version to a packed version This is to enable vllm for packed weights, vllm will do a slice for the quantized weight, but slicing is not always supported for all torchao tensor subclasses. So we want to first ship an plain / unpacked checkpoint and then convert to the packed version using this API Test Plan: pytest test/prototype/test_tensor_conversion.py Reviewers: Subscribers: Tasks: Tags:
jerryzh168
force-pushed
the
add-main-convert-api
branch
from
99020e5 to
b24d0d4
Compare
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Summary:
Added
convert_to_packed_tensor_based_on_current_hardwareto convert a tensor from the unpacked / plain version to a packed versionThis is to enable vllm for packed weights, vllm will do a slice for the quantized weight, but slicing is not always supported for all torchao tensor subclasses. So we want to first ship an plain / unpacked checkpoint and then convert to the packed version using this API
Test Plan:
pytest test/prototype/test_tensor_conversion.py
Reviewers:
Subscribers:
Tasks:
Tags: