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axolotl/tests/e2e/integrations/test_cut_cross_entropy.py
Wing Lian f77408a3d0 fix tests
2026-04-23 23:47:28 +00:00

168 lines
5.1 KiB
Python

"""
Simple end-to-end test for Cut Cross Entropy integration
"""
import pytest
from axolotl.common.datasets import load_datasets
from axolotl.train import train
from axolotl.utils import get_pytorch_version
from axolotl.utils.config import normalize_config, prepare_plugins, validate_config
from axolotl.utils.dict import DictDefault
from tests.e2e.utils import (
check_model_output_exists,
check_tensorboard_loss_decreased,
)
@pytest.fixture()
def min_cfg(temp_dir):
return {
"base_model": "HuggingFaceTB/SmolLM2-135M",
"plugins": [
"axolotl.integrations.cut_cross_entropy.CutCrossEntropyPlugin",
],
"cut_cross_entropy": True,
"sequence_len": 1024,
"val_set_size": 0.02,
"special_tokens": {
"pad_token": "<|endoftext|>",
},
"datasets": [
{
"path": "mhenrichsen/alpaca_2k_test",
"type": "alpaca",
},
],
"num_epochs": 1,
"micro_batch_size": 8,
"gradient_accumulation_steps": 1,
"learning_rate": 5e-4,
"optimizer": "adamw_torch_fused",
"output_dir": temp_dir,
"lr_scheduler": "cosine",
"max_steps": 40,
"warmup_steps": 5,
"bf16": "auto",
"save_first_step": False,
"use_tensorboard": True,
"seed": 42,
}
class TestCutCrossEntropyIntegration:
"""
e2e tests for cut_cross_entropy integration with Axolotl
"""
def test_llama_w_cce(self, min_cfg, temp_dir):
cfg = DictDefault(min_cfg)
cfg = validate_config(cfg)
prepare_plugins(cfg)
normalize_config(cfg)
dataset_meta = load_datasets(cfg=cfg)
major, minor, _ = get_pytorch_version()
if (major, minor) < (2, 4):
with pytest.raises(ImportError):
train(cfg=cfg, dataset_meta=dataset_meta)
else:
train(cfg=cfg, dataset_meta=dataset_meta)
check_model_output_exists(temp_dir, cfg)
check_tensorboard_loss_decreased(
temp_dir + "/runs",
initial_window=5,
final_window=5,
max_initial=2.2,
max_final=2.0,
)
def test_qwen2_w_cce(self, temp_dir):
cfg = DictDefault(
{
"base_model": "axolotl-ai-co/tiny-qwen2-129m",
"plugins": [
"axolotl.integrations.cut_cross_entropy.CutCrossEntropyPlugin",
],
"cut_cross_entropy": True,
"sequence_len": 1024,
"val_set_size": 0.02,
"special_tokens": {
"pad_token": "<|endoftext|>",
},
"datasets": [
{
"path": "mhenrichsen/alpaca_2k_test",
"type": "alpaca",
},
],
"num_epochs": 1,
"micro_batch_size": 4,
"gradient_accumulation_steps": 1,
"learning_rate": 2e-4,
"optimizer": "adamw_torch_fused",
"output_dir": temp_dir,
"lr_scheduler": "cosine",
"max_steps": 50,
"bf16": "auto",
"save_first_step": False,
"use_tensorboard": True,
"seed": 42,
}
)
cfg = validate_config(cfg)
prepare_plugins(cfg)
normalize_config(cfg)
dataset_meta = load_datasets(cfg=cfg)
major, minor, _ = get_pytorch_version()
if (major, minor) < (2, 4):
with pytest.raises(ImportError):
train(cfg=cfg, dataset_meta=dataset_meta)
else:
train(cfg=cfg, dataset_meta=dataset_meta)
check_model_output_exists(temp_dir, cfg)
check_tensorboard_loss_decreased(
temp_dir + "/runs",
initial_window=5,
final_window=5,
max_initial=5.0,
max_final=4.7,
)
@pytest.mark.parametrize(
"attention_type",
[
"flash_attention",
"sdp_attention",
# "xformers_attention",
],
)
def test_llama_w_cce_and_attention(self, min_cfg, temp_dir, attention_type):
cfg = DictDefault(
min_cfg
| {
attention_type: True,
}
)
cfg = validate_config(cfg)
prepare_plugins(cfg)
normalize_config(cfg)
dataset_meta = load_datasets(cfg=cfg)
major, minor, _ = get_pytorch_version()
if (major, minor) < (2, 4):
with pytest.raises(ImportError):
train(cfg=cfg, dataset_meta=dataset_meta)
else:
train(cfg=cfg, dataset_meta=dataset_meta)
check_model_output_exists(temp_dir, cfg)
check_tensorboard_loss_decreased(
temp_dir + "/runs",
initial_window=5,
final_window=5,
max_initial=2.2,
max_final=2.0,
)