johnthexiii的解决方案会在第一次运行worker函数时终止该模型。您可以提供单独的销毁功能：
import time
def g(x): # destroy function
del model
time.sleep(1) # to ensure, this worker does not pick too many
return None
在pool.close()添加之前
pool.map_async(g, range(2), 1) # if specified to have two processes before
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