mirror of https://github.com/hpcaitech/ColossalAI
27 lines
943 B
Python
27 lines
943 B
Python
from colossalai.gemini.chunk import ChunkManager
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from colossalai.utils import get_current_device
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from colossalai.utils.memory import colo_device_memory_capacity
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from .memstats_collector import MemStatsCollector
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class ChunkMemStatsCollector(MemStatsCollector):
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def __init__(self, chunk_manager: ChunkManager) -> None:
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super().__init__()
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self._chunk_manager = chunk_manager
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# override
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def sample_model_data(self) -> None:
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"""Sampling model data statistics.
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"""
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if self._start_flag:
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cuda_mem = self._chunk_manager.total_mem['cuda']
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cpu_mem = self._chunk_manager.total_mem['cpu']
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self._memstats.append_model_data('cuda', cuda_mem)
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self._memstats.append_model_data('cpu', cpu_mem)
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@property
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def cuda_margin_mem(self) -> float:
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return colo_device_memory_capacity(get_current_device()) - self._memstats.max_overall_cuda('cuda')
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