45 lines
1.4 KiB
Python
45 lines
1.4 KiB
Python
import os
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import datetime
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from mesa import Model
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from typing import TYPE_CHECKING
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from my_model import MyModel
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if TYPE_CHECKING:
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from controller_db import ControllerDB
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class Computation:
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def __init__(self, c_db: 'ControllerDB'):
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# 控制不同进程 计算不同的样本 但使用同一个 数据库 c_db
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self.c_db = c_db
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self.pid = os.getpid()
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def run(self, str_code='0', s_id=None):
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sample_random = self.c_db.fetch_a_sample(s_id)
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if sample_random is None:
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return True
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# lock this row by update is_done_flag to 0 将运行后的样本设置为 flag 0
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self.c_db.lock_the_sample(sample_random)
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print(
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f"Pid {self.pid} ({str_code}) is running "
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f"sample {sample_random.id} at {datetime.datetime.now()}")
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# 将sample 对应的 experiment 的一系列值 和 参数值 传入 模型 中 包括列名 和 值
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dct_exp = {column: getattr(sample_random.experiment, column)
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for column in sample_random.experiment.__table__.c.keys()}
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# 删除不需要的 主键
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del dct_exp['id']
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dct_sample_para = {'sample': sample_random,
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'seed': sample_random.seed,
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**dct_exp}
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model = MyModel(dct_sample_para)
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for i in range(1):
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model.step()
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print(i, datetime.datetime.now())
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model.end()
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return False
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