mirror of https://github.com/hpcaitech/ColossalAI
227 lines
6.8 KiB
Python
227 lines
6.8 KiB
Python
import pytest
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import torch
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import colossalai
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from colossalai.logging import disable_existing_loggers
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from colossalai.shardformer.layer.utils import Randomizer
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from colossalai.tensor.d_tensor.api import clear_layout_converter
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from colossalai.testing import clear_cache_before_run, parameterize, rerun_if_address_is_in_use, spawn
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from tests.kit.model_zoo import model_zoo
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from tests.test_shardformer.test_model._utils import (
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build_model_from_hybrid_plugin,
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check_all_grad_tensors,
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check_loss,
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check_output_hidden_state,
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check_weight,
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get_grad_tensors_for_check,
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run_forward_backward_with_hybrid_plugin,
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unwrap_model,
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)
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def check_forward_backward(model_fn, data_gen_fn, output_transform_fn, loss_fn, test_config):
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org_model, org_optimizer, sharded_model, sharded_optimizer, criterion, booster = build_model_from_hybrid_plugin(
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model_fn, loss_fn, test_config
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)
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org_loss, org_output, sharded_loss, sharded_output = run_forward_backward_with_hybrid_plugin(
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org_model, sharded_model, sharded_optimizer, data_gen_fn, output_transform_fn, criterion, booster
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)
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stage_manager = booster.plugin.stage_manager
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tp_group = booster.plugin.tp_group
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# unwrap model
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gpt2 = unwrap_model(org_model, "GPT2Model", "transformer")
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sharded_gpt2 = unwrap_model(sharded_model, "GPT2Model", "transformer")
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col_layer_for_check = ["h[0].mlp.c_fc"]
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row_layer_for_check = ["wte", "h[0].mlp.c_proj"]
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# Save gradient tensors for comparison between the original model and the sharded model.
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grads_to_check = {}
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if (stage_manager is None or stage_manager.is_first_stage()) and booster.plugin.zero_stage == 0:
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if test_config["precision"] == "fp32":
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atol, rtol = 1e-4, 1e-3
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else:
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atol, rtol = 5e-3, 5e-3
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col_layer_grads = get_grad_tensors_for_check(
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gpt2, sharded_gpt2, col_layer_for_check, tp_group, atol=atol, rtol=rtol, dim=1, verbose=False
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)
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row_layer_grads = get_grad_tensors_for_check(
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gpt2, sharded_gpt2, row_layer_for_check, tp_group, atol=atol, rtol=rtol, dim=0, verbose=False
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)
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grads_to_check.update(col_layer_grads)
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grads_to_check.update(row_layer_grads)
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# optimizer executes step
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org_optimizer.step()
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sharded_optimizer.step()
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# check last hidden state & loss
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if stage_manager is None or stage_manager.is_last_stage():
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if test_config["precision"] == "fp32":
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atol, rtol = 1e-5, 1e-3
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else:
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atol, rtol = 5e-3, 5e-3
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if org_model.__class__.__name__ == "GPT2Model":
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check_output_hidden_state(org_output, sharded_output, stage_manager, atol=atol, rtol=rtol)
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check_loss(org_loss, sharded_loss, atol=atol, rtol=rtol)
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# check weights
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if stage_manager is None or stage_manager.is_first_stage():
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if test_config["precision"] == "fp32":
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atol, rtol = 5e-3, 1e-3
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else:
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atol, rtol = 5e-3, 5e-3
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check_weight(gpt2, sharded_gpt2, col_layer_for_check, tp_group, atol=atol, rtol=rtol, dim=1, verbose=False)
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# check grads
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check_all_grad_tensors(grads_to_check)
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Randomizer.reset_index()
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torch.cuda.empty_cache()
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@parameterize(
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"test_config",
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[
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{
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"tp_size": 2,
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"pp_size": 2,
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"num_microbatches": 4,
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"enable_all_optimization": True,
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"use_lazy_init": True,
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"precision": "fp16",
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"initial_scale": 1,
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},
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{
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"tp_size": 1,
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"pp_size": 2,
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"num_microbatches": 4,
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"enable_all_optimization": True,
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"use_lazy_init": True,
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"precision": "fp16",
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"initial_scale": 1,
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},
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{
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"tp_size": 4,
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"pp_size": 1,
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"enable_all_optimization": True,
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"use_lazy_init": False,
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"precision": "fp32",
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},
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{
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"tp_size": 2,
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"pp_size": 1,
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"enable_all_optimization": True,
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"use_lazy_init": False,
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"precision": "fp32",
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},
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{
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"tp_size": 2,
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"pp_size": 2,
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"num_microbatches": 4,
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"enable_all_optimization": True,
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"use_lazy_init": True,
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"precision": "fp32",
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},
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{
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"tp_size": 2,
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"pp_size": 1,
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"enable_all_optimization": True,
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"use_lazy_init": True,
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"zero_stage": 2,
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"precision": "fp16",
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"initial_scale": 1,
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},
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{
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"tp_size": 1,
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"pp_size": 2,
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"num_microbatches": 2,
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"enable_all_optimization": True,
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"use_lazy_init": True,
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"zero_stage": 1,
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"precision": "fp16",
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"initial_scale": 1,
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},
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],
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)
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@clear_cache_before_run()
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def run_gpt2_test(test_config):
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sub_model_zoo = model_zoo.get_sub_registry("transformers_gpt")
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for name, (model_fn, data_gen_fn, output_transform_fn, loss_fn, _) in sub_model_zoo.items():
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check_forward_backward(model_fn, data_gen_fn, output_transform_fn, loss_fn, test_config)
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clear_layout_converter()
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torch.cuda.empty_cache()
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@parameterize(
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"test_config",
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[
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{
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"tp_size": 2,
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"pp_size": 2,
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"num_microbatches": 4,
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"enable_all_optimization": False,
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"use_lazy_init": False,
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"precision": "fp32",
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"initial_scale": 1,
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},
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{
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"tp_size": 2,
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"pp_size": 2,
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"num_microbatches": 4,
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"enable_all_optimization": False,
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"use_lazy_init": False,
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"precision": "fp16",
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"zero_stage": 1,
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"initial_scale": 1,
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},
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],
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)
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@clear_cache_before_run()
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def run_gpt2_3d_test(test_config):
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sub_model_zoo = model_zoo.get_sub_registry("transformers_gpt")
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for name, (model_fn, data_gen_fn, output_transform_fn, loss_fn, _) in sub_model_zoo.items():
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check_forward_backward(model_fn, data_gen_fn, output_transform_fn, loss_fn, test_config)
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clear_layout_converter()
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torch.cuda.empty_cache()
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def check_gpt2(rank, world_size, port):
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disable_existing_loggers()
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colossalai.launch(config={}, rank=rank, world_size=world_size, host="localhost", port=port, backend="nccl")
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run_gpt2_test()
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def check_gpt2_3d(rank, world_size, port):
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disable_existing_loggers()
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colossalai.launch(config={}, rank=rank, world_size=world_size, host="localhost", port=port, backend="nccl")
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run_gpt2_3d_test()
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@pytest.mark.dist
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@rerun_if_address_is_in_use()
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@clear_cache_before_run()
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def test_gpt2():
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spawn(check_gpt2, 4)
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@pytest.mark.largedist
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@rerun_if_address_is_in_use()
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@clear_cache_before_run()
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def test_gpt2_3d():
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spawn(check_gpt2_3d, 8)
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if __name__ == "__main__":
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test_gpt2()
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test_gpt2_3d()
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