add int4preshuffledtensor to safetensors #3063
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**Summary** adding `Int4Tensor` support for safetensors (`Int4WeightOnlyConfig`) **Test plan** modified unit test to include `Int4WeightOnlyConfig` `python test/prototype/safetensors/test_safetensors_support.py` [ghstack-poisoned]
**Summary** adding `Int4Tensor` support for safetensors (`Int4WeightOnlyConfig`) **Test plan** modified unit test to include `Int4WeightOnlyConfig` `python test/prototype/safetensors/test_safetensors_support.py` [ghstack-poisoned]
**Summary** adding `Int4Tensor` support for safetensors (`Int4WeightOnlyConfig`) **Test plan** modified unit test to include `Int4WeightOnlyConfig` `python test/prototype/safetensors/test_safetensors_support.py` [ghstack-poisoned]
**Summary** adding `Int4Tensor` support for safetensors (`Int4WeightOnlyConfig`) **Test plan** modified unit test to include `Int4WeightOnlyConfig` `python test/prototype/safetensors/test_safetensors_support.py` [ghstack-poisoned]
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🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/ao/3063
Note: Links to docs will display an error until the docs builds have been completed. ✅ No FailuresAs of commit 585afe2 with merge base 0064084 ( This comment was automatically generated by Dr. CI and updates every 15 minutes. |
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adding `Int4PreshuffledTensor` to safetensors modified unit test, `python test/prototype/safetensors/test_safetensors_support.py` [ghstack-poisoned]
liangel-02
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topic: improvement
jerryzh168
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Sep 25, 2025
| ALLOWED_CLASSES = { | ||
| "Float8Tensor": Float8Tensor, | ||
| "Int4Tensor": Int4Tensor, | ||
| "Int4PreshuffledTensor": Int4PreshuffledTensor, |
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it's fine to not support this one actually, since we don't need to distribute this
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but I think the test should probably still be added later when the full export path is ready
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adding
Int4PreshuffledTensorto safetensors (Float8DynamicActivationInt4WeightConfig)modified unit test,
python test/prototype/safetensors/test_safetensors_support.pyStack from ghstack (oldest at bottom):