Text Generation
Transformers
PyTorch
Safetensors
gpt2
chatbot
dialogue
distilgpt2
ai-msgbot
text-generation-inference
Instructions to use ethzanalytics/distilgpt2-tiny-conversational with libraries, inference providers, notebooks, and local apps. Follow these links to get started.
- Libraries
- Transformers
How to use ethzanalytics/distilgpt2-tiny-conversational with Transformers:
# Use a pipeline as a high-level helper from transformers import pipeline pipe = pipeline("text-generation", model="ethzanalytics/distilgpt2-tiny-conversational")# pip install -U transformers accelerate # Load model directly from transformers import AutoTokenizer, AutoModelForCausalLM tokenizer = AutoTokenizer.from_pretrained("ethzanalytics/distilgpt2-tiny-conversational") model = AutoModelForCausalLM.from_pretrained("ethzanalytics/distilgpt2-tiny-conversational", device_map="auto") - Notebooks
- Google Colab
- Kaggle
- Local Apps Settings
- vLLM
How to use ethzanalytics/distilgpt2-tiny-conversational with vLLM:
Install from pip and serve model
# Install vLLM from pip: pip install vllm # Start the vLLM server: vllm serve "ethzanalytics/distilgpt2-tiny-conversational" # Call the server using curl (OpenAI-compatible API): curl -X POST "http://localhost:8000/v1/completions" \ -H "Content-Type: application/json" \ --data '{ "model": "ethzanalytics/distilgpt2-tiny-conversational", "prompt": "Once upon a time,", "max_tokens": 512, "temperature": 0.5 }'Use Docker
docker model run hf.co/ethzanalytics/distilgpt2-tiny-conversational
- SGLang
How to use ethzanalytics/distilgpt2-tiny-conversational with SGLang:
Install from pip and serve model
# Install SGLang from pip: pip install sglang # Start the SGLang server: python3 -m sglang.launch_server \ --model-path "ethzanalytics/distilgpt2-tiny-conversational" \ --host 0.0.0.0 \ --port 30000 # Call the server using curl (OpenAI-compatible API): curl -X POST "http://localhost:30000/v1/completions" \ -H "Content-Type: application/json" \ --data '{ "model": "ethzanalytics/distilgpt2-tiny-conversational", "prompt": "Once upon a time,", "max_tokens": 512, "temperature": 0.5 }'Use Docker images
docker run --gpus all \ --shm-size 32g \ -p 30000:30000 \ -v ~/.cache/huggingface:/root/.cache/huggingface \ --env "HF_TOKEN=<secret>" \ --ipc=host \ lmsysorg/sglang:latest \ python3 -m sglang.launch_server \ --model-path "ethzanalytics/distilgpt2-tiny-conversational" \ --host 0.0.0.0 \ --port 30000 # Call the server using curl (OpenAI-compatible API): curl -X POST "http://localhost:30000/v1/completions" \ -H "Content-Type: application/json" \ --data '{ "model": "ethzanalytics/distilgpt2-tiny-conversational", "prompt": "Once upon a time,", "max_tokens": 512, "temperature": 0.5 }' - Docker Model Runner
How to use ethzanalytics/distilgpt2-tiny-conversational with Docker Model Runner:
docker model run hf.co/ethzanalytics/distilgpt2-tiny-conversational
End of training
Browse files- README.md +88 -0
- last-checkpoint/config.json +0 -46
- last-checkpoint/global_step418/mp_rank_00_model_states.pt +0 -3
- last-checkpoint/global_step418/zero_pp_rank_0_mp_rank_00_optim_states.pt +0 -3
- last-checkpoint/latest +0 -1
- last-checkpoint/pytorch_model.bin +0 -3
- last-checkpoint/rng_state_0.pth +0 -3
- last-checkpoint/trainer_state.json +0 -24
- last-checkpoint/training_args.bin +0 -3
- last-checkpoint/zero_to_fp32.py +0 -453
- pytorch_model.bin +1 -1
README.md
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+
---
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+
license: apache-2.0
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tags:
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- generated_from_trainer
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model-index:
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- name: checkpoints
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results: []
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---
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<!-- This model card has been generated automatically according to the information the Trainer had access to. You
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should probably proofread and complete it, then remove this comment. -->
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# checkpoints
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This model is a fine-tuned version of [distilgpt2](https://huggingface.co/distilgpt2) on an unknown dataset.
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It achieves the following results on the evaluation set:
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- Loss: 2.2461
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## Model description
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More information needed
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## Intended uses & limitations
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More information needed
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## Training and evaluation data
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More information needed
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## Training procedure
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### Training hyperparameters
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The following hyperparameters were used during training:
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- learning_rate: 2e-05
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- train_batch_size: 32
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- eval_batch_size: 32
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- seed: 42
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- distributed_type: multi-GPU
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- gradient_accumulation_steps: 4
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- total_train_batch_size: 128
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- optimizer: Adam with betas=(0.9,0.999) and epsilon=1e-08
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- lr_scheduler_type: cosine
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- lr_scheduler_warmup_ratio: 0.05
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- num_epochs: 30
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### Training results
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| Training Loss | Epoch | Step | Validation Loss |
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| 51 |
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|:-------------:|:-----:|:-----:|:---------------:|
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| No log | 1.0 | 418 | 2.7793 |
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| 2.9952 | 2.0 | 836 | 2.6914 |
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| 2.7684 | 3.0 | 1254 | 2.6348 |
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| 2.685 | 4.0 | 1672 | 2.5938 |
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| 2.6243 | 5.0 | 2090 | 2.5625 |
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| 2.5816 | 6.0 | 2508 | 2.5332 |
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| 2.5816 | 7.0 | 2926 | 2.5098 |
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| 2.545 | 8.0 | 3344 | 2.4902 |
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| 2.5083 | 9.0 | 3762 | 2.4707 |
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| 2.4793 | 10.0 | 4180 | 2.4551 |
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| 2.4531 | 11.0 | 4598 | 2.4395 |
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| 2.4269 | 12.0 | 5016 | 2.4238 |
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| 64 |
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| 2.4269 | 13.0 | 5434 | 2.4102 |
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| 2.4051 | 14.0 | 5852 | 2.3945 |
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| 2.3777 | 15.0 | 6270 | 2.3848 |
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| 67 |
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| 2.3603 | 16.0 | 6688 | 2.3711 |
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| 2.3394 | 17.0 | 7106 | 2.3613 |
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| 2.3206 | 18.0 | 7524 | 2.3516 |
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| 2.3206 | 19.0 | 7942 | 2.3398 |
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| 2.3026 | 20.0 | 8360 | 2.3301 |
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| 2.2823 | 21.0 | 8778 | 2.3203 |
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| 2.2669 | 22.0 | 9196 | 2.3105 |
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| 2.2493 | 23.0 | 9614 | 2.3027 |
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| 2.2334 | 24.0 | 10032 | 2.2930 |
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| 2.2334 | 25.0 | 10450 | 2.2852 |
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| 2.2194 | 26.0 | 10868 | 2.2754 |
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| 2.2014 | 27.0 | 11286 | 2.2695 |
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| 2.1868 | 28.0 | 11704 | 2.2598 |
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| 2.171 | 29.0 | 12122 | 2.2539 |
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| 2.1597 | 30.0 | 12540 | 2.2461 |
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### Framework versions
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- Transformers 4.16.1
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- Pytorch 1.10.0+cu111
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- Tokenizers 0.11.0
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last-checkpoint/config.json
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{
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"_name_or_path": "distilgpt2",
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"_num_labels": 1,
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"activation_function": "gelu_new",
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"architectures": [
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"GPT2LMHeadModel"
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],
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"attn_pdrop": 0.1,
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"bos_token_id": 50256,
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"embd_pdrop": 0.1,
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"eos_token_id": 50256,
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"id2label": {
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"0": "LABEL_0"
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},
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"initializer_range": 0.02,
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"label2id": {
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"LABEL_0": 0
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},
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"layer_norm_epsilon": 1e-05,
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"model_type": "gpt2",
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"n_ctx": 1024,
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"n_embd": 768,
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"n_head": 12,
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"n_inner": null,
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"n_layer": 6,
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"n_positions": 1024,
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"reorder_and_upcast_attn": false,
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"resid_pdrop": 0.1,
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"scale_attn_by_inverse_layer_idx": false,
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"scale_attn_weights": true,
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"summary_activation": null,
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"summary_first_dropout": 0.1,
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"summary_proj_to_labels": true,
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"summary_type": "cls_index",
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"summary_use_proj": true,
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"task_specific_params": {
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"text-generation": {
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"do_sample": true,
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"max_length": 50
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}
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},
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"torch_dtype": "float16",
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"transformers_version": "4.16.1",
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"use_cache": false,
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"vocab_size": 50257
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}
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last-checkpoint/global_step418/mp_rank_00_model_states.pt
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version https://git-lfs.github.com/spec/v1
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size 176426750
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last-checkpoint/global_step418/zero_pp_rank_0_mp_rank_00_optim_states.pt
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last-checkpoint/latest
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global_step418
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last-checkpoint/pytorch_model.bin
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version https://git-lfs.github.com/spec/v1
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size 176424894
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last-checkpoint/rng_state_0.pth
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version https://git-lfs.github.com/spec/v1
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size 14503
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last-checkpoint/trainer_state.json
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{
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"best_metric": null,
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"best_model_checkpoint": null,
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"epoch": 0.998805256869773,
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"global_step": 418,
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"is_hyper_param_search": false,
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"is_local_process_zero": true,
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"is_world_process_zero": true,
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"log_history": [
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{
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"epoch": 1.0,
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"eval_loss": 2.779296875,
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"eval_runtime": 13.8161,
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"eval_samples_per_second": 1296.528,
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"eval_steps_per_second": 40.532,
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"step": 418
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}
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],
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"max_steps": 12540,
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"num_train_epochs": 30,
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"total_flos": 1749218444181504.0,
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"trial_name": null,
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"trial_params": null
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}
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last-checkpoint/training_args.bin
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version https://git-lfs.github.com/spec/v1
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size 4143
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last-checkpoint/zero_to_fp32.py
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#!/usr/bin/env python
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# This script extracts fp32 consolidated weights from a zero 2 and 3 DeepSpeed checkpoints. It gets
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# copied into the top level checkpoint dir, so the user can easily do the conversion at any point in
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# the future. Once extracted, the weights don't require DeepSpeed and can be used in any
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# application.
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#
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# example: python zero_to_fp32.py . pytorch_model.bin
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import argparse
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import torch
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import glob
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import math
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import os
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from collections import OrderedDict
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# while this script doesn't use deepspeed to recover data, since the checkpoints are pickled with
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# DeepSpeed data structures it has to be available in the current python environment.
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import deepspeed
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from deepspeed.utils import logger
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debug = 0
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# load to cpu
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device = torch.device('cpu')
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def get_model_state_file(checkpoint_dir, zero_stage):
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if not os.path.isdir(checkpoint_dir):
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raise FileNotFoundError(f"Directory '{checkpoint_dir}' doesn't exist")
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# there should be only one file
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if zero_stage == 2:
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file = os.path.join(checkpoint_dir, "mp_rank_00_model_states.pt")
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elif zero_stage == 3:
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file = os.path.join(checkpoint_dir, "zero_pp_rank_0_mp_rank_00_model_states.pt")
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if not os.path.exists(file):
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raise FileNotFoundError(f"can't find model states file at '{file}'")
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return file
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def get_optim_files(checkpoint_dir):
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# XXX: need to test that this simple glob rule works for multi-node setup too
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optim_files = sorted(glob.glob(os.path.join(checkpoint_dir, "*_optim_states.pt")))
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| 48 |
-
if len(optim_files) == 0:
|
| 49 |
-
raise FileNotFoundError(
|
| 50 |
-
f"can't find '*_optim_states.pt' files in directory '{checkpoint_dir}'")
|
| 51 |
-
|
| 52 |
-
return optim_files
|
| 53 |
-
|
| 54 |
-
|
| 55 |
-
def parse_model_state(file):
|
| 56 |
-
state_dict = torch.load(file, map_location=device)
|
| 57 |
-
|
| 58 |
-
if "buffer_names" not in state_dict:
|
| 59 |
-
raise ValueError(f"{file} is not a model state checkpoint")
|
| 60 |
-
buffer_names = state_dict["buffer_names"]
|
| 61 |
-
if debug:
|
| 62 |
-
print("Found buffers:", buffer_names)
|
| 63 |
-
|
| 64 |
-
# recover just the buffers while restoring them to fp32 if they were saved in fp16
|
| 65 |
-
buffers = {
|
| 66 |
-
k: v.float()
|
| 67 |
-
for k,
|
| 68 |
-
v in state_dict["module"].items() if k in buffer_names
|
| 69 |
-
}
|
| 70 |
-
return buffers
|
| 71 |
-
|
| 72 |
-
|
| 73 |
-
def parse_optim_states(files, ds_checkpoint_dir):
|
| 74 |
-
|
| 75 |
-
total_files = len(files)
|
| 76 |
-
state_dicts = []
|
| 77 |
-
for f in files:
|
| 78 |
-
state_dicts.append(torch.load(f, map_location=device))
|
| 79 |
-
|
| 80 |
-
if not "zero_stage" in state_dicts[0]['optimizer_state_dict']:
|
| 81 |
-
raise ValueError(f"{files[0]} is not a zero checkpoint")
|
| 82 |
-
zero_stage = state_dicts[0]['optimizer_state_dict']["zero_stage"]
|
| 83 |
-
world_size = state_dicts[0]['optimizer_state_dict']["partition_count"]
|
| 84 |
-
param_shapes = state_dicts[0]["param_shapes"]
|
| 85 |
-
# For ZeRO-2 each param group can have different partition_count as data parallelism for expert
|
| 86 |
-
# parameters can be different from data parallelism for non-expert parameters. So we can just
|
| 87 |
-
# use the max of the partition_count to get the dp world_size.
|
| 88 |
-
|
| 89 |
-
if type(world_size) is list:
|
| 90 |
-
world_size = max(world_size)
|
| 91 |
-
|
| 92 |
-
if world_size != total_files:
|
| 93 |
-
raise ValueError(
|
| 94 |
-
f"Expected {world_size} of '*_optim_states.pt' under '{ds_checkpoint_dir}' but found {total_files} files. "
|
| 95 |
-
"Possibly due to an overwrite of an old checkpoint, or a checkpoint didn't get saved by one or more processes."
|
| 96 |
-
)
|
| 97 |
-
|
| 98 |
-
# the groups are named differently in each stage
|
| 99 |
-
if zero_stage == 2:
|
| 100 |
-
fp32_groups_key = "single_partition_of_fp32_groups"
|
| 101 |
-
elif zero_stage == 3:
|
| 102 |
-
fp32_groups_key = "fp32_flat_groups"
|
| 103 |
-
else:
|
| 104 |
-
raise ValueError(f"unknown zero stage {zero_stage}")
|
| 105 |
-
|
| 106 |
-
if zero_stage == 2:
|
| 107 |
-
fp32_flat_groups = [
|
| 108 |
-
state_dicts[i]['optimizer_state_dict'][fp32_groups_key]
|
| 109 |
-
for i in range(len(state_dicts))
|
| 110 |
-
]
|
| 111 |
-
elif zero_stage == 3:
|
| 112 |
-
# if there is more than one param group, there will be multiple flattened tensors - one
|
| 113 |
-
# flattened tensor per group - for simplicity merge them into a single tensor
|
| 114 |
-
#
|
| 115 |
-
# XXX: could make the script more memory efficient for when there are multiple groups - it
|
| 116 |
-
# will require matching the sub-lists of param_shapes for each param group flattened tensor
|
| 117 |
-
|
| 118 |
-
fp32_flat_groups = [
|
| 119 |
-
torch.cat(state_dicts[i]['optimizer_state_dict'][fp32_groups_key],
|
| 120 |
-
0) for i in range(len(state_dicts))
|
| 121 |
-
]
|
| 122 |
-
|
| 123 |
-
return zero_stage, world_size, param_shapes, fp32_flat_groups
|
| 124 |
-
|
| 125 |
-
|
| 126 |
-
def _get_fp32_state_dict_from_zero_checkpoint(ds_checkpoint_dir):
|
| 127 |
-
"""
|
| 128 |
-
Returns fp32 state_dict reconstructed from ds checkpoint
|
| 129 |
-
|
| 130 |
-
Args:
|
| 131 |
-
- ``ds_checkpoint_dir``: path to the deepspeed checkpoint folder (where the optimizer files are)
|
| 132 |
-
|
| 133 |
-
"""
|
| 134 |
-
print(f"Processing zero checkpoint '{ds_checkpoint_dir}'")
|
| 135 |
-
|
| 136 |
-
optim_files = get_optim_files(ds_checkpoint_dir)
|
| 137 |
-
zero_stage, world_size, param_shapes, fp32_flat_groups = parse_optim_states(optim_files, ds_checkpoint_dir)
|
| 138 |
-
print(
|
| 139 |
-
f"Detected checkpoint of type zero stage {zero_stage}, world_size: {world_size}")
|
| 140 |
-
|
| 141 |
-
model_file = get_model_state_file(ds_checkpoint_dir, zero_stage)
|
| 142 |
-
buffers = parse_model_state(model_file)
|
| 143 |
-
|
| 144 |
-
if zero_stage == 2:
|
| 145 |
-
return _get_fp32_state_dict_from_zero2_checkpoint(world_size,
|
| 146 |
-
param_shapes,
|
| 147 |
-
fp32_flat_groups,
|
| 148 |
-
buffers)
|
| 149 |
-
elif zero_stage == 3:
|
| 150 |
-
return _get_fp32_state_dict_from_zero3_checkpoint(world_size,
|
| 151 |
-
param_shapes,
|
| 152 |
-
fp32_flat_groups,
|
| 153 |
-
buffers)
|
| 154 |
-
|
| 155 |
-
|
| 156 |
-
def _get_fp32_state_dict_from_zero2_checkpoint(world_size,
|
| 157 |
-
param_shapes,
|
| 158 |
-
fp32_flat_groups,
|
| 159 |
-
buffers):
|
| 160 |
-
|
| 161 |
-
# Reconstruction protocol:
|
| 162 |
-
#
|
| 163 |
-
# XXX: document this
|
| 164 |
-
|
| 165 |
-
if debug:
|
| 166 |
-
for i in range(world_size):
|
| 167 |
-
for j in range(len(fp32_flat_groups[0])):
|
| 168 |
-
print(f"fp32_flat_groups[{i}][{j}].shape={fp32_flat_groups[i][j].shape}")
|
| 169 |
-
|
| 170 |
-
# XXX: memory usage doubles here (zero2)
|
| 171 |
-
num_param_groups = len(fp32_flat_groups[0])
|
| 172 |
-
merged_single_partition_of_fp32_groups = []
|
| 173 |
-
for i in range(num_param_groups):
|
| 174 |
-
merged_partitions = [sd[i] for sd in fp32_flat_groups]
|
| 175 |
-
full_single_fp32_vector = torch.cat(merged_partitions, 0)
|
| 176 |
-
merged_single_partition_of_fp32_groups.append(full_single_fp32_vector)
|
| 177 |
-
avail_numel = sum([
|
| 178 |
-
full_single_fp32_vector.numel()
|
| 179 |
-
for full_single_fp32_vector in merged_single_partition_of_fp32_groups
|
| 180 |
-
])
|
| 181 |
-
|
| 182 |
-
if debug:
|
| 183 |
-
wanted_params = sum([len(shapes) for shapes in param_shapes])
|
| 184 |
-
wanted_numel = sum(
|
| 185 |
-
[sum(shape.numel() for shape in shapes.values()) for shapes in param_shapes])
|
| 186 |
-
# not asserting if there is a mismatch due to possible padding
|
| 187 |
-
print(f"Have {avail_numel} numels to process.")
|
| 188 |
-
print(f"Need {wanted_numel} numels in {wanted_params} params.")
|
| 189 |
-
|
| 190 |
-
state_dict = OrderedDict()
|
| 191 |
-
|
| 192 |
-
# buffers
|
| 193 |
-
state_dict.update(buffers)
|
| 194 |
-
if debug:
|
| 195 |
-
print(f"added {len(buffers)} buffers")
|
| 196 |
-
|
| 197 |
-
# params
|
| 198 |
-
# XXX: for huge models that can't fit into the host's RAM we will have to recode this to support
|
| 199 |
-
# out-of-core computing solution
|
| 200 |
-
total_numel = 0
|
| 201 |
-
total_params = 0
|
| 202 |
-
for shapes, full_single_fp32_vector in zip(param_shapes, merged_single_partition_of_fp32_groups):
|
| 203 |
-
offset = 0
|
| 204 |
-
avail_numel = full_single_fp32_vector.numel()
|
| 205 |
-
for name, shape in shapes.items():
|
| 206 |
-
|
| 207 |
-
unpartitioned_numel = shape.numel()
|
| 208 |
-
total_numel += unpartitioned_numel
|
| 209 |
-
total_params += 1
|
| 210 |
-
|
| 211 |
-
if debug:
|
| 212 |
-
print(
|
| 213 |
-
f"{name} full shape: {shape} unpartitioned numel {unpartitioned_numel} "
|
| 214 |
-
)
|
| 215 |
-
state_dict[name] = full_single_fp32_vector.narrow(
|
| 216 |
-
0,
|
| 217 |
-
offset,
|
| 218 |
-
unpartitioned_numel).view(shape)
|
| 219 |
-
offset += unpartitioned_numel
|
| 220 |
-
|
| 221 |
-
# Z2 started to align to 2*world_size to improve nccl performance. Therefore both offset and
|
| 222 |
-
# avail_numel can differ by anywhere between 0..2*world_size. Due to two unrelated complex
|
| 223 |
-
# paddings performed in the code it's almost impossible to predict the exact numbers w/o the
|
| 224 |
-
# live optimizer object, so we are checking that the numbers are within the right range
|
| 225 |
-
align_to = 2 * world_size
|
| 226 |
-
|
| 227 |
-
def zero2_align(x):
|
| 228 |
-
return align_to * math.ceil(x / align_to)
|
| 229 |
-
|
| 230 |
-
if debug:
|
| 231 |
-
print(f"original offset={offset}, avail_numel={avail_numel}")
|
| 232 |
-
|
| 233 |
-
offset = zero2_align(offset)
|
| 234 |
-
avail_numel = zero2_align(avail_numel)
|
| 235 |
-
|
| 236 |
-
if debug:
|
| 237 |
-
print(f"aligned offset={offset}, avail_numel={avail_numel}")
|
| 238 |
-
|
| 239 |
-
# Sanity check
|
| 240 |
-
if offset != avail_numel:
|
| 241 |
-
raise ValueError(
|
| 242 |
-
f"consumed {offset} numels out of {avail_numel} - something is wrong")
|
| 243 |
-
|
| 244 |
-
print(
|
| 245 |
-
f"Reconstructed fp32 state dict with {total_params} params {total_numel} elements"
|
| 246 |
-
)
|
| 247 |
-
|
| 248 |
-
return state_dict
|
| 249 |
-
|
| 250 |
-
|
| 251 |
-
def zero3_partitioned_param_info(unpartitioned_numel, world_size):
|
| 252 |
-
remainder = unpartitioned_numel % world_size
|
| 253 |
-
padding_numel = (world_size - remainder) if remainder else 0
|
| 254 |
-
partitioned_numel = math.ceil(unpartitioned_numel / world_size)
|
| 255 |
-
return partitioned_numel, padding_numel
|
| 256 |
-
|
| 257 |
-
|
| 258 |
-
def _get_fp32_state_dict_from_zero3_checkpoint(world_size,
|
| 259 |
-
param_shapes,
|
| 260 |
-
fp32_flat_groups,
|
| 261 |
-
buffers):
|
| 262 |
-
|
| 263 |
-
# Reconstruction protocol: For zero3 we need to zip the partitions together at boundary of each
|
| 264 |
-
# param, re-consolidating each param, while dealing with padding if any
|
| 265 |
-
|
| 266 |
-
avail_numel = fp32_flat_groups[0].numel() * world_size
|
| 267 |
-
# merge list of dicts, preserving order
|
| 268 |
-
param_shapes = {k: v for d in param_shapes for k, v in d.items()}
|
| 269 |
-
|
| 270 |
-
if debug:
|
| 271 |
-
for i in range(world_size):
|
| 272 |
-
print(f"fp32_flat_groups[{i}].shape={fp32_flat_groups[i].shape}")
|
| 273 |
-
|
| 274 |
-
wanted_params = len(param_shapes)
|
| 275 |
-
wanted_numel = sum(shape.numel() for shape in param_shapes.values())
|
| 276 |
-
# not asserting if there is a mismatch due to possible padding
|
| 277 |
-
print(f"Have {avail_numel} numels to process.")
|
| 278 |
-
print(f"Need {wanted_numel} numels in {wanted_params} params.")
|
| 279 |
-
|
| 280 |
-
state_dict = OrderedDict()
|
| 281 |
-
|
| 282 |
-
# buffers
|
| 283 |
-
state_dict.update(buffers)
|
| 284 |
-
if debug:
|
| 285 |
-
print(f"added {len(buffers)} buffers")
|
| 286 |
-
|
| 287 |
-
# params
|
| 288 |
-
# XXX: for huge models that can't fit into the host's RAM we will have to recode this to support
|
| 289 |
-
# out-of-core computing solution
|
| 290 |
-
offset = 0
|
| 291 |
-
total_numel = 0
|
| 292 |
-
total_params = 0
|
| 293 |
-
for name, shape in param_shapes.items():
|
| 294 |
-
|
| 295 |
-
unpartitioned_numel = shape.numel()
|
| 296 |
-
total_numel += unpartitioned_numel
|
| 297 |
-
total_params += 1
|
| 298 |
-
|
| 299 |
-
partitioned_numel, partitioned_padding_numel = zero3_partitioned_param_info(unpartitioned_numel, world_size)
|
| 300 |
-
|
| 301 |
-
if debug:
|
| 302 |
-
print(
|
| 303 |
-
f"{total_params} {name} full shape: {shape} partition0 numel={partitioned_numel} partitioned_padding_numel={partitioned_padding_numel}"
|
| 304 |
-
)
|
| 305 |
-
|
| 306 |
-
# XXX: memory usage doubles here
|
| 307 |
-
state_dict[name] = torch.cat(
|
| 308 |
-
tuple(fp32_flat_groups[i].narrow(0,
|
| 309 |
-
offset,
|
| 310 |
-
partitioned_numel)
|
| 311 |
-
for i in range(world_size)),
|
| 312 |
-
0).narrow(0,
|
| 313 |
-
0,
|
| 314 |
-
unpartitioned_numel).view(shape)
|
| 315 |
-
offset += partitioned_numel
|
| 316 |
-
|
| 317 |
-
offset *= world_size
|
| 318 |
-
|
| 319 |
-
# Sanity check
|
| 320 |
-
if offset != avail_numel:
|
| 321 |
-
raise ValueError(
|
| 322 |
-
f"consumed {offset} numels out of {avail_numel} - something is wrong")
|
| 323 |
-
|
| 324 |
-
print(
|
| 325 |
-
f"Reconstructed fp32 state dict with {total_params} params {total_numel} elements"
|
| 326 |
-
)
|
| 327 |
-
|
| 328 |
-
return state_dict
|
| 329 |
-
|
| 330 |
-
|
| 331 |
-
def get_fp32_state_dict_from_zero_checkpoint(checkpoint_dir, tag=None):
|
| 332 |
-
"""
|
| 333 |
-
Convert ZeRO 2 or 3 checkpoint into a single fp32 consolidated state_dict that can be loaded with
|
| 334 |
-
``load_state_dict()`` and used for training without DeepSpeed or shared with others, for example
|
| 335 |
-
via a model hub.
|
| 336 |
-
|
| 337 |
-
Args:
|
| 338 |
-
- ``checkpoint_dir``: path to the desired checkpoint folder
|
| 339 |
-
- ``tag``: checkpoint tag used as a unique identifier for checkpoint. If not provided will attempt to load tag in 'latest' file. e.g., ``global_step14``
|
| 340 |
-
|
| 341 |
-
Returns:
|
| 342 |
-
- pytorch ``state_dict``
|
| 343 |
-
|
| 344 |
-
Note: this approach may not work if your application doesn't have sufficient free CPU memory and
|
| 345 |
-
you may need to use the offline approach using the ``zero_to_fp32.py`` script that is saved with
|
| 346 |
-
the checkpoint.
|
| 347 |
-
|
| 348 |
-
A typical usage might be ::
|
| 349 |
-
|
| 350 |
-
from deepspeed.utils.zero_to_fp32 import get_fp32_state_dict_from_zero_checkpoint
|
| 351 |
-
# do the training and checkpoint saving
|
| 352 |
-
state_dict = get_fp32_state_dict_from_zero_checkpoint(checkpoint_dir) # already on cpu
|
| 353 |
-
model = model.cpu() # move to cpu
|
| 354 |
-
model.load_state_dict(state_dict)
|
| 355 |
-
# submit to model hub or save the model to share with others
|
| 356 |
-
|
| 357 |
-
In this example the ``model`` will no longer be usable in the deepspeed context of the same
|
| 358 |
-
application. i.e. you will need to re-initialize the deepspeed engine, since
|
| 359 |
-
``model.load_state_dict(state_dict)`` will remove all the deepspeed magic from it.
|
| 360 |
-
|
| 361 |
-
If you want it all done for you, use ``load_state_dict_from_zero_checkpoint`` instead.
|
| 362 |
-
|
| 363 |
-
"""
|
| 364 |
-
if tag is None:
|
| 365 |
-
latest_path = os.path.join(checkpoint_dir, 'latest')
|
| 366 |
-
if os.path.isfile(latest_path):
|
| 367 |
-
with open(latest_path, 'r') as fd:
|
| 368 |
-
tag = fd.read().strip()
|
| 369 |
-
else:
|
| 370 |
-
raise ValueError(f"Unable to find 'latest' file at {latest_path}")
|
| 371 |
-
|
| 372 |
-
ds_checkpoint_dir = os.path.join(checkpoint_dir, tag)
|
| 373 |
-
|
| 374 |
-
if not os.path.isdir(ds_checkpoint_dir):
|
| 375 |
-
raise FileNotFoundError(f"Directory '{ds_checkpoint_dir}' doesn't exist")
|
| 376 |
-
|
| 377 |
-
return _get_fp32_state_dict_from_zero_checkpoint(ds_checkpoint_dir)
|
| 378 |
-
|
| 379 |
-
|
| 380 |
-
def convert_zero_checkpoint_to_fp32_state_dict(checkpoint_dir, output_file, tag=None):
|
| 381 |
-
"""
|
| 382 |
-
Convert ZeRO 2 or 3 checkpoint into a single fp32 consolidated ``state_dict`` file that can be
|
| 383 |
-
loaded with ``torch.load(file)`` + ``load_state_dict()`` and used for training without DeepSpeed.
|
| 384 |
-
|
| 385 |
-
Args:
|
| 386 |
-
- ``checkpoint_dir``: path to the desired checkpoint folder. (one that contains the tag-folder, like ``global_step14``)
|
| 387 |
-
- ``output_file``: path to the pytorch fp32 state_dict output file (e.g. path/pytorch_model.bin)
|
| 388 |
-
- ``tag``: checkpoint tag used as a unique identifier for checkpoint. If not provided will attempt to load tag in the file named ``latest`` in the checkpoint folder, e.g., ``global_step14``
|
| 389 |
-
"""
|
| 390 |
-
|
| 391 |
-
state_dict = get_fp32_state_dict_from_zero_checkpoint(checkpoint_dir, tag)
|
| 392 |
-
print(f"Saving fp32 state dict to {output_file}")
|
| 393 |
-
torch.save(state_dict, output_file)
|
| 394 |
-
|
| 395 |
-
|
| 396 |
-
def load_state_dict_from_zero_checkpoint(model, checkpoint_dir, tag=None):
|
| 397 |
-
"""
|
| 398 |
-
1. Put the provided model to cpu
|
| 399 |
-
2. Convert ZeRO 2 or 3 checkpoint into a single fp32 consolidated ``state_dict``
|
| 400 |
-
3. Load it into the provided model
|
| 401 |
-
|
| 402 |
-
Args:
|
| 403 |
-
- ``model``: the model object to update
|
| 404 |
-
- ``checkpoint_dir``: path to the desired checkpoint folder. (one that contains the tag-folder, like ``global_step14``)
|
| 405 |
-
- ``tag``: checkpoint tag used as a unique identifier for checkpoint. If not provided will attempt to load tag in the file named ``latest`` in the checkpoint folder, e.g., ``global_step14``
|
| 406 |
-
|
| 407 |
-
Returns:
|
| 408 |
-
- ``model`: modified model
|
| 409 |
-
|
| 410 |
-
Make sure you have plenty of CPU memory available before you call this function. If you don't
|
| 411 |
-
have enough use the ``zero_to_fp32.py`` utility to do the conversion. You will find it
|
| 412 |
-
conveniently placed for you in the checkpoint folder.
|
| 413 |
-
|
| 414 |
-
A typical usage might be ::
|
| 415 |
-
|
| 416 |
-
from deepspeed.utils.zero_to_fp32 import load_state_dict_from_zero_checkpoint
|
| 417 |
-
model = load_state_dict_from_zero_checkpoint(trainer.model, checkpoint_dir)
|
| 418 |
-
# submit to model hub or save the model to share with others
|
| 419 |
-
|
| 420 |
-
Note, that once this was run, the ``model`` will no longer be usable in the deepspeed context
|
| 421 |
-
of the same application. i.e. you will need to re-initialize the deepspeed engine, since
|
| 422 |
-
``model.load_state_dict(state_dict)`` will remove all the deepspeed magic from it.
|
| 423 |
-
|
| 424 |
-
"""
|
| 425 |
-
logger.info(f"Extracting fp32 weights")
|
| 426 |
-
state_dict = get_fp32_state_dict_from_zero_checkpoint(checkpoint_dir, tag)
|
| 427 |
-
|
| 428 |
-
logger.info(f"Overwriting model with fp32 weights")
|
| 429 |
-
model = model.cpu()
|
| 430 |
-
model.load_state_dict(state_dict, strict=False)
|
| 431 |
-
|
| 432 |
-
return model
|
| 433 |
-
|
| 434 |
-
|
| 435 |
-
if __name__ == "__main__":
|
| 436 |
-
|
| 437 |
-
parser = argparse.ArgumentParser()
|
| 438 |
-
parser.add_argument(
|
| 439 |
-
"checkpoint_dir",
|
| 440 |
-
type=str,
|
| 441 |
-
help="path to the desired checkpoint folder, e.g., path/checkpoint-12")
|
| 442 |
-
parser.add_argument(
|
| 443 |
-
"output_file",
|
| 444 |
-
type=str,
|
| 445 |
-
help=
|
| 446 |
-
"path to the pytorch fp32 state_dict output file (e.g. path/checkpoint-12/pytorch_model.bin)"
|
| 447 |
-
)
|
| 448 |
-
parser.add_argument("-d", "--debug", action='store_true', help="enable debug")
|
| 449 |
-
args = parser.parse_args()
|
| 450 |
-
|
| 451 |
-
debug = args.debug
|
| 452 |
-
|
| 453 |
-
convert_zero_checkpoint_to_fp32_state_dict(args.checkpoint_dir, args.output_file)
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|
pytorch_model.bin
CHANGED
|
@@ -1,3 +1,3 @@
|
|
| 1 |
version https://git-lfs.github.com/spec/v1
|
| 2 |
-
oid sha256:
|
| 3 |
size 176424894
|
|
|
|
| 1 |
version https://git-lfs.github.com/spec/v1
|
| 2 |
+
oid sha256:af7f9e89c13cd0bf18d5984200f49f6a1b168261eddc96ed0771abb13b96ae61
|
| 3 |
size 176424894
|