ColossalAI/colossalai/gemini/memory_tracer/chunk_memstats_collector.py

26 lines
910 B
Python

from colossalai.gemini.chunk import ChunkManager
from colossalai.utils import get_current_device
from colossalai.utils.memory import colo_device_memory_capacity
from .memstats_collector import MemStatsCollector
class ChunkMemStatsCollector(MemStatsCollector):
def __init__(self, chunk_manager: ChunkManager) -> None:
super().__init__()
self._chunk_manager = chunk_manager
def sample_model_data(self) -> None:
"""Sampling model data statistics.
"""
if self._start_flag:
cuda_mem = self._chunk_manager.total_mem['cuda']
cpu_mem = self._chunk_manager.total_mem['cpu']
self._model_data_cuda_list.append(cuda_mem)
self._model_data_cpu_list.append(cpu_mem)
@property
def cuda_margin_mem(self) -> float:
return colo_device_memory_capacity(get_current_device()) - max(self.overall_mem_stats('cuda'))