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axolotl/examples/ebft/llama-8b-ebft-strided-fft.yaml
Wing Lian c50c4acbf4 EBFT: Matching Features, Not Tokens: Energy-Based Fine-Tuning of Language Models (#3527) [skip ci]
* EBFT wip

* fixes

* more fixeS

* add missing strided module

* ebft fixes for multi-turn

* make ebft work with async

* add example for ebft w qwen3.5

* fix for split thinking and update yaml for lora over linear attention only

* enforce_eager for vllm arg in schema

* fix sync weights

* fix multi-gpu

* handle updated sig for mm

* ddp fixes

* improve multi-gpu handling, don't calculate logits, adaptive completion length

* chore: lint

* chore: lint

* support completion_mean

* Address corereview feedback

* clamp min IS ratio

* Address PR code review

* more fixes identified

* address code review

* Fix property from rebase conflict
2026-03-24 18:43:46 -04:00

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1.3 KiB
YAML

# EBFT Strided: Full-parameter Llama-3.1-8B on SwallowCode, 100 steps
# Feature network is CPU-offloaded to fit in single 32GB GPU
#
# Run: CUDA_VISIBLE_DEVICES=0 python -m axolotl.cli.train examples/ebft/llama-8b-ebft-strided-fft.yaml
base_model: meta-llama/Llama-3.1-8B
rl: ebft
ebft:
mode: strided
stride: 8
context_length: 8
generate_max_len: 8
n_samples_per_prompt: 4
temperature: 0.6
top_p: 1.0
feature_layers: [0.25, 0.5, 0.75]
embed_method: last_token
use_whitening: true
alignment_coef: 1.0
diversity_coef: 1.0
rl_coef: 1.0
ce_coef: 0.0
advantage_estimator: rloo
datasets:
- path: sjelassi/swallow_code_20m
type: ebft_pretrain.transform
split: train[:5000]
sequence_len: 1024
micro_batch_size: 1
gradient_accumulation_steps: 4
num_epochs: 1
max_steps: 100
learning_rate: 1.0e-6
optimizer: adamw_torch_fused
lr_scheduler: cosine
warmup_steps: 10
weight_decay: 0.01
bf16: auto
flash_attention: false # strided EBFT uses flex_attention at runtime
gradient_checkpointing: true
gradient_checkpointing_kwargs:
use_reentrant: false
special_tokens:
pad_token: "<|end_of_text|>"
val_set_size: 0.0
output_dir: ./outputs/ebft-llama8b-strided
wandb_project: ebft
wandb_name: llama8b-strided-fft-100steps
logging_steps: 1
save_steps: 50