批量使用ddp.parse()方法报错 about ddparser HOT 7 OPEN

# 运行脚本
from ddparser import DDParser

ddp = DDParser()
count = 0
for i in range(500000):
    text = "两侧额顶叶深部白质区及侧脑室周围多发点状、小斑片及片状异常信号"
    ddp_res = ddp.parse(text)
    count += 1
    if i % 10000 == 0:
        print("==>", i)

# 错误信息
==> 170000
Traceback (most recent call last):
  File "/Users/wangy/PycharmProjects/test/tests.py", line 40, in <module>
    ddp_res = ddp.parse(text)
  File "/Users/wangy/anaconda3/lib/python3.7/site-packages/ddparser/run.py", line 399, in parse
    pred_arcs, pred_rels, pred_probs = epoch_predict(self.env, self.args, self.model, dataset.loader)
  File "<decorator-gen-270>", line 2, in epoch_predict
  File "/Users/wangy/anaconda3/lib/python3.7/site-packages/paddle/fluid/dygraph/base.py", line 276, in __impl__
    return func(*args, **kwargs)
  File "/Users/wangy/anaconda3/lib/python3.7/site-packages/ddparser/parser/model.py", line 185, in epoch_predict
    for batch, inputs in enumerate(loader(), start=1):
  File "/Users/wangy/anaconda3/lib/python3.7/site-packages/paddle/fluid/reader.py", line 961, in __iter__
    self._start()
  File "/Users/wangy/anaconda3/lib/python3.7/site-packages/paddle/fluid/reader.py", line 947, in _start
    self._thread.start()
  File "/Users/wangy/anaconda3/lib/python3.7/threading.py", line 852, in start
    _start_new_thread(self._bootstrap, ())
RuntimeError: can't start new thread