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axolotl/examples/gpt-oss/gpt-oss-20b-sft-lora-singlegpu.yaml
Wing Lian 50f2b94d50 add 120b and deepspeed zero3 examples (#3035) [skip ci]
* add 120b and deepspeed zero3 examples

* add a bit of flavor and cleanup gpt oss readme

* fix: remove expert vram usage

* fix: remove redundant EOS token from eot_tokens

* feat: add 120B to docs

---------

Co-authored-by: NanoCode012 <nano@axolotl.ai>
2025-08-08 08:04:56 -04:00

68 lines
1.5 KiB
YAML

base_model: openai/gpt-oss-20b
use_kernels: true
model_quantization_config: Mxfp4Config
model_quantization_config_kwargs:
dequantize: true
plugins:
- axolotl.integrations.cut_cross_entropy.CutCrossEntropyPlugin
experimental_skip_move_to_device: true # prevent OOM by not putting model to GPU before sharding
datasets:
- path: HuggingFaceH4/Multilingual-Thinking
type: chat_template
field_thinking: thinking
template_thinking_key: thinking
dataset_prepared_path: last_run_prepared
val_set_size: 0
output_dir: ./outputs/gpt-oss-out/
sequence_len: 4096
sample_packing: true
adapter: lora
lora_r: 8
lora_alpha: 16
lora_dropout: 0.0 # dropout not supported when using LoRA over expert parameters
lora_target_linear: true
# TODO: not supported for now, see peft#2710
#lora_target_parameters: # target the experts in the last two layers
# - "22._checkpoint_wrapped_module.mlp.experts.gate_up_proj"
# - "22._checkpoint_wrapped_module.mlp.experts.down_proj"
# - "23._checkpoint_wrapped_module.mlp.experts.gate_up_proj"
# - "23._checkpoint_wrapped_module.mlp.experts.down_proj"
wandb_project:
wandb_entity:
wandb_watch:
wandb_name:
wandb_log_model:
gradient_accumulation_steps: 8
micro_batch_size: 1
num_epochs: 1
optimizer: adamw_torch_8bit
lr_scheduler: constant_with_warmup
learning_rate: 2e-4
bf16: true
tf32: true
flash_attention: true
attn_implementation: kernels-community/vllm-flash-attn3
gradient_checkpointing: true
activation_offloading: true
logging_steps: 1
saves_per_epoch: 1
warmup_ratio: 0.1
special_tokens:
eot_tokens:
- "<|end|>"