mirror of https://github.com/hpcaitech/ColossalAI
64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
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from copy import deepcopy
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import pytest
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import torch
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import torch.distributed as dist
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import torch.nn as nn
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import transformers
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import colossalai
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from colossalai.inference.pipeline.engine import PPInferEngine
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from colossalai.inference.pipeline.policy.gpt2_ppinfer import GPT2LMHeadModelPipelinePolicy
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from colossalai.testing import clear_cache_before_run, parameterize, rerun_if_address_is_in_use, spawn
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def data_gen():
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input_ids = torch.tensor([[15496, 11, 616, 3290, 318, 13779, 318, 13779]], dtype=torch.int64)
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attention_mask = torch.tensor([[1, 1, 1, 1, 1, 1, 1, 1]], dtype=torch.int64)
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return dict(input_ids=input_ids, attention_mask=attention_mask)
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inputs = data_gen()
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for k, v in inputs.items():
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if torch.is_tensor(v) or 'Tensor' in v.__class__.__name__:
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new_shape = [1] * v.dim()
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new_shape[0] = 16
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inputs[k] = v.to('cuda').repeat(*new_shape)
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def pipeline_inference_test(pp_size, new_length, micro_batch_size):
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model = transformers.GPT2LMHeadModel(transformers.GPT2Config(n_layer=8))
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engine = PPInferEngine(pp_size=pp_size,
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model=model,
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model_policy=GPT2LMHeadModelPipelinePolicy(),
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new_length=new_length,
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micro_batch_size=micro_batch_size)
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output = engine.inference([inputs])
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if dist.get_rank() == 0:
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assert len(output[0]) == new_length, f"{len(output)}, {new_length}"
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@parameterize('pp_size', [4])
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@parameterize('new_length', [4, 8, 16])
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@parameterize('micro_batch_size', [1, 4])
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@clear_cache_before_run()
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def run_pipeline_inference_test(pp_size, new_length, micro_batch_size):
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pipeline_inference_test(pp_size, new_length, micro_batch_size)
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torch.cuda.empty_cache()
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def check_pipeline_inference(rank, world_size, port):
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colossalai.launch(config={}, rank=rank, world_size=world_size, host='localhost', port=port, backend='nccl')
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run_pipeline_inference_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_pipeline_inference():
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spawn(check_pipeline_inference, nprocs=4)
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if __name__ == '__main__':
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test_pipeline_inference()
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