Files
axolotl/tests/e2e/multigpu/solo/test_flex.py
NanoCode012 682a9cf79b Fix: add delinearization and make qlora work with fsdp2 (#2515)
* fixes for delinearization, and make qlora work with fsdp2

* Add back mistakenly removed lm_eval

* typo [skip ci]

* patch evals for torch.compile + fsdp2

* also check torch_compile w fsdp2

* lots of fixes for flex attn with llama4

* fix patch check and patch llama4 too

* attempt to make the patches stick

* use transformers 4.51.2

* update configs and README for llama4

* remove torch.compile for CI test

* cleanup any existing singletons

* set singleton cache to None instead of deleting

* use importlib reload with monkeypatch

* don't worry about transformers version, mark inputs with grads, fix regex

* make sure embeds aren't on cpu

* logging and mem improvements

* vllm version and add to docker, make sure to save processor on conversion

* fix ambiguous tensor bool check

* fix vllm to not use v1, upgrade hf transformers

* fix tests

* make flex_attn_compile_kwargs configurable, since this depends on model params

---------

Co-authored-by: Wing Lian <wing@axolotl.ai>
Co-authored-by: Salman Mohammadi <salman.mohammadi@outlook.com>
2025-04-15 23:31:39 -07:00

94 lines
2.7 KiB
Python

"""
E2E tests for multigpu lora tinyllama
"""
import logging
import os
from pathlib import Path
import pytest
import yaml
from accelerate.test_utils import execute_subprocess_async
from huggingface_hub import snapshot_download
from transformers.testing_utils import get_torch_dist_unique_port
from transformers.utils import is_torch_bf16_gpu_available
from axolotl.utils.dict import DictDefault
from tests.e2e.utils import check_tensorboard, require_torch_2_6_0
LOG = logging.getLogger("axolotl.tests.e2e.multigpu")
os.environ["WANDB_DISABLED"] = "true"
AXOLOTL_ROOT = Path(__file__).parent.parent.parent.parent
@pytest.fixture(scope="session", autouse=True)
def download_model():
# download the model
snapshot_download("HuggingFaceTB/SmolLM2-135M")
class TestPackedFlex:
"""
Test case for Packed training of llama models
"""
@require_torch_2_6_0
def test_loss_llama(self, temp_dir):
# pylint: disable=duplicate-code
cfg = DictDefault(
{
"base_model": "HuggingFaceTB/SmolLM2-135M",
"sequence_len": 1024,
"sample_packing": True,
"flex_attention": True,
"val_set_size": 0.0,
"special_tokens": {
"pad_token": "<|endoftext|>",
},
"datasets": [
{
"path": "vicgalle/alpaca-gpt4",
"type": "alpaca",
},
],
"num_epochs": 1,
"micro_batch_size": 2,
"gradient_accumulation_steps": 2,
"gradient_checkpointing": True,
"output_dir": temp_dir,
"learning_rate": 0.00001,
"optimizer": "adamw_torch_fused",
"lr_scheduler": "cosine",
"max_steps": 2,
"use_tensorboard": True,
"save_strategy": "no",
}
)
if is_torch_bf16_gpu_available():
cfg.bf16 = True
else:
cfg.fp16 = True
# write cfg to yaml file
Path(temp_dir).mkdir(parents=True, exist_ok=True)
with open(Path(temp_dir) / "config.yaml", "w", encoding="utf-8") as fout:
fout.write(yaml.dump(cfg.to_dict(), Dumper=yaml.Dumper))
execute_subprocess_async(
[
"axolotl",
"train",
str(Path(temp_dir) / "config.yaml"),
"--num-processes",
"2",
"--main-process-port",
f"{get_torch_dist_unique_port()}",
]
)
check_tensorboard(
temp_dir + "/runs", "train/train_loss", 2.0, "Train Loss is too high"
)