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docs: ko: perf_infer_gpu_one
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feat: chatgpt draft
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fix: manual edits
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fix: manual edits
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fix: resolve suggestions
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| <!--Copyright 2022 The HuggingFace Team. All rights reserved. | ||
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| Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with | ||
| the License. You may obtain a copy of the License at | ||
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| http://www.apache.org/licenses/LICENSE-2.0 | ||
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| Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on | ||
| an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the | ||
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| โ ๏ธ Note that this file is in Markdown but contain specific syntax for our doc-builder (similar to MDX) that may not be | ||
| rendered properly in your Markdown viewer. | ||
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| --> | ||
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| # ๋จ์ผ GPU์์ ํจ์จ์ ์ธ ์ถ๋ก [[efficient-inference-on-a-single-gpu]] | ||
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| ์ด ๊ฐ์ด๋ ์ธ์๋, [๋จ์ผ GPU์์์ ํ๋ จ ๊ฐ์ด๋](perf_train_gpu_one)์ [CPU์์์ ์ถ๋ก ๊ฐ์ด๋](perf_infer_cpu)์์๋ ๊ด๋ จ ์ ๋ณด๋ฅผ ์ฐพ์ ์ ์์ต๋๋ค. | ||
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| ## Better Transformer: PyTorch ๋ค์ดํฐ๋ธ Transformer ํจ์คํธํจ์ค [[better-transformer-pytorchnative-transformer-fastpath]] | ||
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| PyTorch ๋ค์ดํฐ๋ธ [`nn.MultiHeadAttention`](https://pytorch.org/blog/a-better-transformer-for-fast-transformer-encoder-inference/) ์ดํ ์ ํจ์คํธํจ์ค์ธ BetterTransformer๋ [๐ค Optimum ๋ผ์ด๋ธ๋ฌ๋ฆฌ](https://huggingface.co/docs/optimum/bettertransformer/overview)์ ํตํฉ์ ํตํด Transformers์ ํจ๊ป ์ฌ์ฉํ ์ ์์ต๋๋ค. | ||
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| PyTorch์ ์ดํ ์ ํจ์คํธํจ์ค๋ ์ปค๋ ํจ์ ๊ณผ [์ค์ฒฉ๋ ํ ์](https://pytorch.org/docs/stable/nested.html)์ ์ฌ์ฉ์ ํตํด ์ถ๋ก ์๋๋ฅผ ๋์ผ ์ ์์ต๋๋ค. ์์ธํ ๋ฒค์น๋งํฌ๋ [์ด ๋ธ๋ก๊ทธ ๊ธ](https://medium.com/pytorch/bettertransformer-out-of-the-box-performance-for-huggingface-transformers-3fbe27d50ab2)์์ ํ์ธํ ์ ์์ต๋๋ค. | ||
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| [`optimum`](https://github.com/huggingface/optimum) ํจํค์ง๋ฅผ ์ค์นํ ํ์๋ ์ถ๋ก ์ค Better Transformer๋ฅผ ์ฌ์ฉํ ์ ์๋๋ก [`~PreTrainedModel.to_bettertransformer`]๋ฅผ ํธ์ถํ์ฌ ๊ด๋ จ ๋ด๋ถ ๋ชจ๋์ ๋์ฒดํฉ๋๋ค: | ||
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| ```python | ||
| model = model.to_bettertransformer() | ||
| ``` | ||
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| [`~PreTrainedModel.reverse_bettertransformer`] ๋ฉ์๋๋ ์ ๊ทํ๋ transformers ๋ชจ๋ธ๋ง์ ์ฌ์ฉํ๊ธฐ ์ํด ๋ชจ๋ธ์ ์ ์ฅํ๊ธฐ ์ ์๋์ ๋ชจ๋ธ๋ง์ผ๋ก ๋์๊ฐ ์ ์๋๋ก ํด์ค๋๋ค: | ||
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| ```python | ||
| model = model.reverse_bettertransformer() | ||
| model.save_pretrained("saved_model") | ||
| ``` | ||
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| PyTorch 2.0๋ถํฐ๋ ์ดํ ์ ํจ์คํธํจ์ค๊ฐ ์ธ์ฝ๋์ ๋์ฝ๋ ๋ชจ๋์์ ์ง์๋ฉ๋๋ค. ์ง์๋๋ ์ํคํ ์ฒ ๋ชฉ๋ก์ [์ฌ๊ธฐ](https://huggingface.co/docs/optimum/bettertransformer/overview#supported-models)์์ ํ์ธํ ์ ์์ต๋๋ค. | ||
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| ## FP4 ํผํฉ ์ ๋ฐ๋ ์ถ๋ก ์ ์ํ `bitsandbytes` ํตํฉ [[bitsandbytes-integration-for-fp4-mixedprecision-inference]] | ||
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| `bitsandbytes`๋ฅผ ์ค์นํ๋ฉด GPU์์ ์์ฝ๊ฒ ๋ชจ๋ธ์ ์์ถํ ์ ์์ต๋๋ค. FP4 ์์ํ๋ฅผ ์ฌ์ฉํ๋ฉด ์๋์ ์ ์ฒด ์ ๋ฐ๋ ๋ฒ์ ๊ณผ ๋น๊ตํ์ฌ ๋ชจ๋ธ ํฌ๊ธฐ๋ฅผ ์ต๋ 8๋ฐฐ ์ค์ผ ์ ์์ต๋๋ค. ์๋์์ ์์ํ๋ ๋ฐฉ๋ฒ์ ํ์ธํ์ธ์. | ||
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| <Tip> | ||
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| ์ด ๊ธฐ๋ฅ์ ๋ค์ค GPU ์ค์ ์์๋ ์ฌ์ฉํ ์ ์์ต๋๋ค. | ||
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| </Tip> | ||
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| ### ์๊ตฌ ์ฌํญ [[requirements-for-fp4-mixedprecision-inference]] | ||
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| - ์ต์ `bitsandbytes` ๋ผ์ด๋ธ๋ฌ๋ฆฌ | ||
| `pip install bitsandbytes>=0.39.0` | ||
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| - ์ต์ `accelerate`๋ฅผ ์์ค์์ ์ค์น | ||
| `pip install git+https://github.com/huggingface/accelerate.git` | ||
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| - ์ต์ `transformers`๋ฅผ ์์ค์์ ์ค์น | ||
| `pip install git+https://github.com/huggingface/transformers.git` | ||
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| ### FP4 ๋ชจ๋ธ ์คํ - ๋จ์ผ GPU ์ค์ - ๋น ๋ฅธ ์์ [[running-fp4-models-single-gpu-setup-quickstart]] | ||
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| ๋ค์ ์ฝ๋๋ฅผ ์คํํ์ฌ ๋จ์ผ GPU์์ ๋น ๋ฅด๊ฒ FP4 ๋ชจ๋ธ์ ์คํํ ์ ์์ต๋๋ค. | ||
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| ```py | ||
| from transformers import AutoModelForCausalLM | ||
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| model_name = "bigscience/bloom-2b5" | ||
| model_4bit = AutoModelForCausalLM.from_pretrained(model_name, device_map="auto", load_in_4bit=True) | ||
| ``` | ||
| `device_map`์ ์ ํ ์ฌํญ์ ๋๋ค. ๊ทธ๋ฌ๋ `device_map = 'auto'`๋ก ์ค์ ํ๋ ๊ฒ์ด ์ฌ์ฉ ๊ฐ๋ฅํ ๋ฆฌ์์ค๋ฅผ ํจ์จ์ ์ผ๋ก ๋์คํจ์นํ๊ธฐ ๋๋ฌธ์ ์ถ๋ก ์ ์์ด ๊ถ์ฅ๋ฉ๋๋ค. | ||
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| ### FP4 ๋ชจ๋ธ ์คํ - ๋ค์ค GPU ์ค์ [[running-fp4-models-multi-gpu-setup]] | ||
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| ๋ค์ค GPU์์ ํผํฉ 4๋นํธ ๋ชจ๋ธ์ ๊ฐ์ ธ์ค๋ ๋ฐฉ๋ฒ์ ๋จ์ผ GPU ์ค์ ๊ณผ ๋์ผํฉ๋๋ค(๋์ผํ ๋ช ๋ น์ด ์ฌ์ฉ): | ||
| ```py | ||
| model_name = "bigscience/bloom-2b5" | ||
| model_4bit = AutoModelForCausalLM.from_pretrained(model_name, device_map="auto", load_in_4bit=True) | ||
| ``` | ||
| ํ์ง๋ง `accelerate`๋ฅผ ์ฌ์ฉํ์ฌ ๊ฐ GPU์ ํ ๋นํ GPU RAM์ ์ ์ดํ ์ ์์ต๋๋ค. ๋ค์๊ณผ ๊ฐ์ด `max_memory` ์ธ์๋ฅผ ์ฌ์ฉํ์ธ์: | ||
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| ```py | ||
| max_memory_mapping = {0: "600MB", 1: "1GB"} | ||
| model_name = "bigscience/bloom-3b" | ||
| model_4bit = AutoModelForCausalLM.from_pretrained( | ||
| model_name, device_map="auto", load_in_4bit=True, max_memory=max_memory_mapping | ||
| ) | ||
| ``` | ||
| ์ด ์์์๋ ์ฒซ ๋ฒ์งธ GPU๊ฐ 600MB์ ๋ฉ๋ชจ๋ฆฌ๋ฅผ ์ฌ์ฉํ๊ณ ๋ ๋ฒ์งธ GPU๊ฐ 1GB๋ฅผ ์ฌ์ฉํฉ๋๋ค. | ||
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| ### ๊ณ ๊ธ ์ฌ์ฉ๋ฒ [[advanced-usage]] | ||
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| ์ด ๋ฐฉ๋ฒ์ ๋ ๊ณ ๊ธ ์ฌ์ฉ๋ฒ์ ๋ํด์๋ [์์ํ](main_classes/quantization) ๋ฌธ์ ํ์ด์ง๋ฅผ ์ฐธ์กฐํ์ธ์. | ||
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| ## Int8 ํผํฉ ์ ๋ฐ๋ ํ๋ ฌ ๋ถํด๋ฅผ ์ํ `bitsandbytes` ํตํฉ [[bitsandbytes-integration-for-int8-mixedprecision-matrix-decomposition]] | ||
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| <Tip> | ||
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| ์ด ๊ธฐ๋ฅ์ ๋ค์ค GPU ์ค์ ์์๋ ์ฌ์ฉํ ์ ์์ต๋๋ค. | ||
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| </Tip> | ||
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| [`LLM.int8() : 8-bit Matrix Multiplication for Transformers at Scale`](https://arxiv.org/abs/2208.07339) ๋ ผ๋ฌธ์์ ์ฐ๋ฆฌ๋ ๋ช ์ค์ ์ฝ๋๋ก Hub์ ๋ชจ๋ ๋ชจ๋ธ์ ๋ํ Hugging Face ํตํฉ์ ์ง์ํฉ๋๋ค. | ||
| ์ด ๋ฐฉ๋ฒ์ `float16` ๋ฐ `bfloat16` ๊ฐ์ค์น์ ๋ํด `nn.Linear` ํฌ๊ธฐ๋ฅผ 2๋ฐฐ๋ก ์ค์ด๊ณ , `float32` ๊ฐ์ค์น์ ๋ํด 4๋ฐฐ๋ก ์ค์ ๋๋ค. ์ด๋ ์ ๋ฐ ์ ๋ฐ๋์์ ์ด์์น๋ฅผ ์ฒ๋ฆฌํจ์ผ๋ก์จ ํ์ง์ ๊ฑฐ์ ์ํฅ์ ๋ฏธ์น์ง ์์ต๋๋ค. | ||
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|  | ||
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| Int8 ํผํฉ ์ ๋ฐ๋ ํ๋ ฌ ๋ถํด๋ ํ๋ ฌ ๊ณฑ์ ์ ๋ ๊ฐ์ ์คํธ๋ฆผ์ผ๋ก ๋ถ๋ฆฌํฉ๋๋ค: (1) fp16๋ก ๊ณฑํด์ง๋ ์ฒด๊ณ์ ์ธ ํน์ด๊ฐ ์ด์์น ์คํธ๋ฆผ ํ๋ ฌ(0.01%) ๋ฐ (2) int8 ํ๋ ฌ ๊ณฑ์ ์ ์ผ๋ฐ์ ์ธ ์คํธ๋ฆผ(99.9%). ์ด ๋ฐฉ๋ฒ์ ์ฌ์ฉํ๋ฉด ๋งค์ฐ ํฐ ๋ชจ๋ธ์ ๋ํด ์์ธก ์ ํ ์์ด int8 ์ถ๋ก ์ด ๊ฐ๋ฅํฉ๋๋ค. | ||
| ์ด ๋ฐฉ๋ฒ์ ๋ํ ์์ธํ ๋ด์ฉ์ [๋ ผ๋ฌธ](https://arxiv.org/abs/2208.07339)์ด๋ [ํตํฉ์ ๊ดํ ๋ธ๋ก๊ทธ ๊ธ](https://huggingface.co/blog/hf-bitsandbytes-integration)์์ ํ์ธํ ์ ์์ต๋๋ค. | ||
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| ์ปค๋์ GPU ์ ์ฉ์ผ๋ก ์ปดํ์ผ๋์ด ์๊ธฐ ๋๋ฌธ์ ํผํฉ 8๋นํธ ๋ชจ๋ธ์ ์คํํ๋ ค๋ฉด GPU๊ฐ ํ์ํฉ๋๋ค. ์ด ๊ธฐ๋ฅ์ ์ฌ์ฉํ๊ธฐ ์ ์ ๋ชจ๋ธ์ 1/4(๋๋ ๋ชจ๋ธ ๊ฐ์ค์น๊ฐ ์ ๋ฐ ์ ๋ฐ๋์ธ ๊ฒฝ์ฐ ์ ๋ฐ)์ ์ ์ฅํ ์ถฉ๋ถํ GPU ๋ฉ๋ชจ๋ฆฌ๊ฐ ์๋์ง ํ์ธํ์ธ์. | ||
| ์ด ๋ชจ๋์ ์ฌ์ฉํ๋ ๋ฐ ๋์์ด ๋๋ ๋ช ๊ฐ์ง ์ฐธ๊ณ ์ฌํญ์ด ์๋์ ๋์ ์์ต๋๋ค. ๋๋ [Google colab](#colab-demos)์์ ๋ฐ๋ชจ๋ฅผ ๋ฐ๋ผํ ์๋ ์์ต๋๋ค. | ||
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| ### ์๊ตฌ ์ฌํญ [[requirements-for-int8-mixedprecision-matrix-decomposition]] | ||
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| - `bitsandbytes<0.37.0`์ ์ฌ์ฉํ๋ ๊ฒฝ์ฐ, 8๋นํธ ํ ์ ์ฝ์ด(Turing, Ampere ๋๋ ์ดํ ์ํคํ ์ฒ - ์: T4, RTX20s RTX30s, A40-A100)๋ฅผ ์ง์ํ๋ NVIDIA GPU์์ ์คํํ๋์ง ํ์ธํ์ธ์. `bitsandbytes>=0.37.0`์ ์ฌ์ฉํ๋ ๊ฒฝ์ฐ, ๋ชจ๋ GPU๊ฐ ์ง์๋ฉ๋๋ค. | ||
| - ์ฌ๋ฐ๋ฅธ ๋ฒ์ ์ `bitsandbytes`๋ฅผ ๋ค์ ๋ช ๋ น์ผ๋ก ์ค์นํ์ธ์: | ||
| `pip install bitsandbytes>=0.31.5` | ||
| - `accelerate`๋ฅผ ์ค์นํ์ธ์ | ||
| `pip install accelerate>=0.12.0` | ||
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| ### ํผํฉ Int8 ๋ชจ๋ธ ์คํ - ๋จ์ผ GPU ์ค์ [[running-mixedint8-models-single-gpu-setup]] | ||
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| ํ์ํ ๋ผ์ด๋ธ๋ฌ๋ฆฌ๋ฅผ ์ค์นํ ํ ํผํฉ 8๋นํธ ๋ชจ๋ธ์ ๊ฐ์ ธ์ค๋ ๋ฐฉ๋ฒ์ ๋ค์๊ณผ ๊ฐ์ต๋๋ค: | ||
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| ```py | ||
| from transformers import AutoModelForCausalLM | ||
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| model_name = "bigscience/bloom-2b5" | ||
| model_8bit = AutoModelForCausalLM.from_pretrained(model_name, device_map="auto", load_in_8bit=True) | ||
| ``` | ||
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| ํ ์คํธ ์์ฑ์ ๊ฒฝ์ฐ: | ||
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| * `pipeline()` ํจ์ ๋์ ๋ชจ๋ธ์ `generate()` ๋ฉ์๋๋ฅผ ์ฌ์ฉํ๋ ๊ฒ์ ๊ถ์ฅํฉ๋๋ค. `pipeline()` ํจ์๋ก๋ ์ถ๋ก ์ด ๊ฐ๋ฅํ์ง๋ง, ํผํฉ 8๋นํธ ๋ชจ๋ธ์ ์ต์ ํ๋์ง ์์๊ธฐ ๋๋ฌธ์ `generate()` ๋ฉ์๋๋ฅผ ์ฌ์ฉํ๋ ๊ฒ๋ณด๋ค ๋๋ฆด ์ ์์ต๋๋ค. ๋ํ, nucleus ์ํ๋ง๊ณผ ๊ฐ์ ์ผ๋ถ ์ํ๋ง ์ ๋ต์ ํผํฉ 8๋นํธ ๋ชจ๋ธ์ ๋ํด `pipeline()` ํจ์์์ ์ง์๋์ง ์์ต๋๋ค. | ||
| * ์ ๋ ฅ์ ๋ชจ๋ธ๊ณผ ๋์ผํ GPU์ ๋ฐฐ์นํ๋ ๊ฒ์ด ์ข์ต๋๋ค. | ||
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| ๋ค์์ ๊ฐ๋จํ ์์ ๋๋ค: | ||
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| ```py | ||
| from transformers import AutoModelForCausalLM, AutoTokenizer | ||
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| model_name = "bigscience/bloom-2b5" | ||
| tokenizer = AutoTokenizer.from_pretrained(model_name) | ||
| model_8bit = AutoModelForCausalLM.from_pretrained(model_name, device_map="auto", load_in_8bit=True) | ||
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| prompt = "Hello, my llama is cute" | ||
| inputs = tokenizer(prompt, return_tensors="pt").to("cuda") | ||
| generated_ids = model.generate(**inputs) | ||
| outputs = tokenizer.batch_decode(generated_ids, skip_special_tokens=True) | ||
| ``` | ||
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| ### ํผํฉ Int8 ๋ชจ๋ธ ์คํ - ๋ค์ค GPU ์ค์ [[running-mixedint8-models-multi-gpu-setup]] | ||
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| ๋ค์ค GPU์์ ํผํฉ 8๋นํธ ๋ชจ๋ธ์ ๋ก๋ํ๋ ๋ฐฉ๋ฒ์ ๋จ์ผ GPU ์ค์ ๊ณผ ๋์ผํฉ๋๋ค(๋์ผํ ๋ช ๋ น์ด ์ฌ์ฉ): | ||
| ```py | ||
| model_name = "bigscience/bloom-2b5" | ||
| model_8bit = AutoModelForCausalLM.from_pretrained(model_name, device_map="auto", load_in_8bit=True) | ||
| ``` | ||
| ํ์ง๋ง `accelerate`๋ฅผ ์ฌ์ฉํ์ฌ ๊ฐ GPU์ ํ ๋นํ GPU RAM์ ์ ์ดํ ์ ์์ต๋๋ค. ๋ค์๊ณผ ๊ฐ์ด `max_memory` ์ธ์๋ฅผ ์ฌ์ฉํ์ธ์: | ||
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| ```py | ||
| max_memory_mapping = {0: "1GB", 1: "2GB"} | ||
| model_name = "bigscience/bloom-3b" | ||
| model_8bit = AutoModelForCausalLM.from_pretrained( | ||
| model_name, device_map="auto", load_in_8bit=True, max_memory=max_memory_mapping | ||
| ) | ||
| ``` | ||
| ์ด ์์์์๋ ์ฒซ ๋ฒ์งธ GPU๊ฐ 1GB์ ๋ฉ๋ชจ๋ฆฌ๋ฅผ ์ฌ์ฉํ๊ณ ๋ ๋ฒ์งธ GPU๊ฐ 2GB๋ฅผ ์ฌ์ฉํฉ๋๋ค. | ||
|
|
||
| ### Colab ๋ฐ๋ชจ [[colab-demos]] | ||
|
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||
| ์ด ๋ฐฉ๋ฒ์ ์ฌ์ฉํ๋ฉด ์ด์ ์ Google Colab์์ ์ถ๋ก ํ ์ ์์๋ ๋ชจ๋ธ์ ๋ํด ์ถ๋ก ํ ์ ์์ต๋๋ค. | ||
| Google Colab์์ 8๋นํธ ์์ํ๋ฅผ ์ฌ์ฉํ์ฌ T5-11b(42GB in fp32)๋ฅผ ์คํํ๋ ๋ฐ๋ชจ๋ฅผ ํ์ธํ์ธ์: | ||
|
|
||
| [](https://colab.research.google.com/drive/1YORPWx4okIHXnjW7MSAidXN29mPVNT7F?usp=sharing) | ||
|
|
||
| ๋๋ BLOOM-3B์ ๋ํ ๋ฐ๋ชจ๋ฅผ ํ์ธํ์ธ์: | ||
|
|
||
| [](https://colab.research.google.com/drive/1qOjXfQIAULfKvZqwCen8-MoWKGdSatZ4?usp=sharing) | ||
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