[ExecuTorch] support BF16 in op_to_copy #4976
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bfloat16.h was a stub. I've filled it out by porting the c10 implementation, added it to ET_SWITCH and ET_FORALL macros, and hooked it up to promoteTypes. I extended the half_to_float argument to promoteTypes to also coerce bfloat16 to float because I figured anybody who wants to ignore half probably also wants to ignore bf16. Differential Revision: [D61981361](https://our.internmc.facebook.com/intern/diff/D61981361/) [ghstack-poisoned]
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/4976
Note: Links to docs will display an error until the docs builds have been completed. ✅ You can merge normally! (1 Unrelated Failure)As of commit 281dc66 with merge base 0c78a9d ( BROKEN TRUNK - The following job failed but were present on the merge base:👉 Rebase onto the `viable/strict` branch to avoid these failures
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This pull request was exported from Phabricator. Differential Revision: D61981356 |
This was referenced Aug 29, 2024
digantdesai
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Aug 29, 2024
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D61981356 |
swolchok
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Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D61981356 |
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D61981356 |
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D61981356 |
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
Adding bfloat16 support to important ops for LLMs to start. Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/) [ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D61981356 |
kedarnath03
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Jun 25, 2025
Pull Request resolved: pytorch/executorch#4976 Adding bfloat16 support to important ops for LLMs to start. ghstack-source-id: 241050119 @exported-using-ghexport Differential Revision: [D61981356](https://our.internmc.facebook.com/intern/diff/D61981356/)
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Stack from ghstack (oldest at bottom):
Adding bfloat16 support to important ops for LLMs to start.
Differential Revision: D61981356