54 lines
2.5 KiB
Python
Executable File
54 lines
2.5 KiB
Python
Executable File
import importlib.util
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import torch
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import torch.distributed as dist
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try:
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# The pai_fuser is an internally developed acceleration package, which can be used on PAI.
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if importlib.util.find_spec("pai_fuser") is not None:
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import pai_fuser
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from pai_fuser.core.distributed import (
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get_sequence_parallel_rank, get_sequence_parallel_world_size,
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get_sp_group, get_world_group, init_distributed_environment,
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initialize_model_parallel)
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from pai_fuser.core.long_ctx_attention import \
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xFuserLongContextAttention
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print("Import PAI DiT Turbo")
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else:
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import xfuser
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from xfuser.core.distributed import (get_sequence_parallel_rank,
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get_sequence_parallel_world_size,
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get_sp_group, get_world_group,
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init_distributed_environment,
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initialize_model_parallel)
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from xfuser.core.long_ctx_attention import xFuserLongContextAttention
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print("Xfuser import sucessful")
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except Exception as ex:
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get_sequence_parallel_world_size = None
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get_sequence_parallel_rank = None
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xFuserLongContextAttention = None
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get_sp_group = None
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get_world_group = None
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init_distributed_environment = None
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initialize_model_parallel = None
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def set_multi_gpus_devices(ulysses_degree, ring_degree):
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if ulysses_degree > 1 or ring_degree > 1:
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if get_sp_group is None:
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raise RuntimeError("xfuser is not installed.")
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dist.init_process_group("nccl")
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print('parallel inference enabled: ulysses_degree=%d ring_degree=%d rank=%d world_size=%d' % (
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ulysses_degree, ring_degree, dist.get_rank(),
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dist.get_world_size()))
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assert dist.get_world_size() == ring_degree * ulysses_degree, \
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"number of GPUs(%d) should be equal to ring_degree * ulysses_degree." % dist.get_world_size()
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init_distributed_environment(rank=dist.get_rank(), world_size=dist.get_world_size())
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initialize_model_parallel(sequence_parallel_degree=dist.get_world_size(),
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ring_degree=ring_degree,
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ulysses_degree=ulysses_degree)
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# device = torch.device("cuda:%d" % dist.get_rank())
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device = torch.device(f"cuda:{get_world_group().local_rank}")
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print('rank=%d device=%s' % (get_world_group().rank, str(device)))
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else:
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device = "cuda"
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return device |