[Executorch][quant] Optimize per channel dequantize #5656
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When using quantized kv cache, dequantization routine takes significantly long. This diff just vectorizes dequant per channel for common case. Differential Revision: [D63338858](https://our.internmc.facebook.com/intern/diff/D63338858/) [ghstack-poisoned]
🔗 Helpful Links🧪 See artifacts and rendered test results at hud.pytorch.org/pr/pytorch/executorch/5656
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This pull request was exported from Phabricator. Differential Revision: D63338858 |
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This was referenced Sep 25, 2024
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When using quantized kv cache, dequantization routine takes significantly long. This diff just vectorizes dequant per channel for common case. Differential Revision: [D63338858](https://our.internmc.facebook.com/intern/diff/D63338858/) ghstack-source-id: 244684199 Pull Request resolved: #5656
When using quantized kv cache, dequantization routine takes significantly long. This diff just vectorizes dequant per channel for common case. Differential Revision: [D63338858](https://our.internmc.facebook.com/intern/diff/D63338858/) [ghstack-poisoned]
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This pull request was exported from Phabricator. Differential Revision: D63338858 |
kimishpatel
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Pull Request resolved: #5656 When using quantized kv cache, dequantization routine takes significantly long. This diff just vectorizes dequant per channel for common case. ghstack-source-id: 244684199 @exported-using-ghexport Differential Revision: [D63338858](https://our.internmc.facebook.com/intern/diff/D63338858/)
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Stack from ghstack (oldest at bottom):
When using quantized kv cache, dequantization routine takes significantly long.
This diff just vectorizes dequant per channel for common case.
Differential Revision: D63338858