[from_pretrained] Make from_pretrained fast again
#27709
Merged
Conversation
This file contains 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
|
LysandreJik
approved these changes
Dec 11, 2023
Co-authored-by: Lysandre Debut <hi@lysand.re>
Co-authored-by: Lysandre Debut <hi@lysand.re>
|
The docs for this PR live here. All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update. |
iantbutler01
pushed a commit
to LaconicAI/transformers
that referenced
this pull request
Dec 16, 2023
* Skip nn.Module.reset_parameters * Actually skip * Check quality * Maybe change all inits * Fix init issues: only modify public functions * Add a small test for now * Style * test updates * style * nice tes * style * make it even faster * one more second * remove fx icompatible * Update tests/test_modeling_common.py Co-authored-by: Lysandre Debut <hi@lysand.re> * Update tests/test_modeling_common.py Co-authored-by: Lysandre Debut <hi@lysand.re> * skip * fix quality * protect the import --------- Co-authored-by: Lysandre Debut <hi@lysand.re>
4 tasks
staghado
pushed a commit
to staghado/transformers
that referenced
this pull request
Jan 15, 2024
* Skip nn.Module.reset_parameters * Actually skip * Check quality * Maybe change all inits * Fix init issues: only modify public functions * Add a small test for now * Style * test updates * style * nice tes * style * make it even faster * one more second * remove fx icompatible * Update tests/test_modeling_common.py Co-authored-by: Lysandre Debut <hi@lysand.re> * Update tests/test_modeling_common.py Co-authored-by: Lysandre Debut <hi@lysand.re> * skip * fix quality * protect the import --------- Co-authored-by: Lysandre Debut <hi@lysand.re>
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.
what does this PR do
Skips all layer initialization when loading from pretrained without accelerate.
From ~20seconds to 5 seconds for a 7B model like llama.
The Weights are effectively initialized in « init_weights_ » of the pretrained method. All internal calls are skipped
AutoModelForCausalLMfromAutoModelfixes #26258 and fixes #18505
model = XXXX.from_pretrained(model_id, torch_dtype=torch.float16, low_cpu_mem_usage=True")might fail