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ColossalAI/tests/test_checkpoint_io/test_gemini_checkpoint_io.py

99 lines
4.3 KiB

import tempfile
import pytest
import torch
import colossalai
from colossalai.booster.plugin.gemini_plugin import GeminiCheckpointIO
from colossalai.testing import check_state_dict_equal, parameterize, rerun_if_address_is_in_use, spawn
from colossalai.utils.cuda import get_current_device
from colossalai.zero import ColoInitContext, ZeroDDP
from colossalai.zero.gemini.chunk import ChunkManager, search_chunk_configuration
from colossalai.zero.gemini.gemini_mgr import GeminiManager
from tests.components_to_test.registry import non_distributed_component_funcs
@parameterize('placement_policy', ['cuda', 'cpu'])
@parameterize('model_name', ['bert'])
@parameterize('use_safetensors', [True, False])
def exam_state_dict_with_origin(placement_policy, model_name, use_safetensors: bool):
from transformers import BertForSequenceClassification
model_ckpt_dir = tempfile.TemporaryDirectory()
get_components_func = non_distributed_component_funcs.get_callable(model_name)
model_builder, *_ = get_components_func()
with ColoInitContext(device=(get_current_device())):
bert_model = model_builder()
bert_model.config.save_pretrained(save_directory=(model_ckpt_dir.name))
config_dict, *_ = search_chunk_configuration(bert_model, search_range_mb=1, search_interval_byte=100)
chunk_manager = ChunkManager(config_dict)
gemini_manager = GeminiManager(placement_policy, chunk_manager)
bert_model = ZeroDDP(bert_model, gemini_manager)
bert_model.train()
ckpt_io = GeminiCheckpointIO()
if ckpt_io.coordinator.is_master():
model_size = sum(p.numel() * p.element_size() for p in bert_model.parameters()) / 1024**2
ckpt_io.save_model(bert_model, (model_ckpt_dir.name),
True,
True,
'', (model_size / 3),
use_safetensors=use_safetensors)
new_bert_model = BertForSequenceClassification.from_pretrained(model_ckpt_dir.name)
check_state_dict_equal(bert_model.state_dict(only_rank_0=True, dtype=(torch.float32)),
new_bert_model.state_dict(), False)
model_ckpt_dir.cleanup()
@parameterize('placement_policy', ['cuda', 'cpu'])
@parameterize('model_name', ['gpt2', 'bert'])
@parameterize('use_safetensors', [True, False])
def exam_state_dict(placement_policy, model_name: str, use_safetensors: bool):
get_components_func = non_distributed_component_funcs.get_callable(model_name)
model_builder, *_ = get_components_func()
with ColoInitContext(device=(get_current_device())):
model = model_builder()
new_model = model_builder()
config_dict, *_ = search_chunk_configuration(model, search_range_mb=1, search_interval_byte=100)
chunk_manager = ChunkManager(config_dict)
gemini_manager = GeminiManager(placement_policy, chunk_manager)
model = ZeroDDP(model, gemini_manager)
model.train()
#new model
new_config_dict, *_ = search_chunk_configuration(new_model, search_range_mb=1, search_interval_byte=100)
new_chunk_manager = ChunkManager(new_config_dict)
new_gemini_manager = GeminiManager(placement_policy, new_chunk_manager)
new_model = ZeroDDP(new_model, new_gemini_manager)
model_ckpt_dir = tempfile.TemporaryDirectory()
ckpt_io = GeminiCheckpointIO()
model_size = sum(p.numel() * p.element_size() for p in model.parameters()) / 1024**2
ckpt_io.save_model(model, (model_ckpt_dir.name),
True,
True,
'epoch', (model_size / 3),
use_safetensors=use_safetensors)
if ckpt_io.coordinator.is_master():
ckpt_io.load_model(new_model, (model_ckpt_dir.name), strict=True)
model_dict = model.state_dict(only_rank_0=True)
new_model_dict = new_model.state_dict(only_rank_0=True)
check_state_dict_equal(model_dict, new_model_dict, False)
model_ckpt_dir.cleanup()
def run_dist(rank, world_size, port):
config = {}
colossalai.launch(config=config, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
exam_state_dict()
exam_state_dict_with_origin()
@pytest.mark.dist
@pytest.mark.parametrize('world_size', [4, 4])
@rerun_if_address_is_in_use()
def test_gemini_ckpIO(world_size):
spawn(run_dist, world_size)