Traceback (most recent call last):
  File "train_multi_task.py", line 192, in <module>
    experiment(config)
  File "train_multi_task.py", line 82, in experiment
    data_list.append(iter_.next())
  File "/usr/local/lib/python2.7/dist-packages/torch/utils/data/dataloader.py", line 267, in __next__
    idx, batch = self._get_batch()
  File "/usr/local/lib/python2.7/dist-packages/torch/utils/data/dataloader.py", line 246, in _get_batch
    return self.data_queue.get()
  File "/usr/lib/python2.7/multiprocessing/queues.py", line 376, in get
    return recv()
  File "/usr/local/lib/python2.7/dist-packages/torch/multiprocessing/queue.py", line 22, in recv
    return pickle.loads(buf)
  File "/usr/lib/python2.7/pickle.py", line 1382, in loads
    return Unpickler(file).load()
  File "/usr/lib/python2.7/pickle.py", line 858, in load
    dispatch[key](self)
  File "/usr/lib/python2.7/pickle.py", line 1133, in load_reduce
    value = func(*args)
  File "/usr/local/lib/python2.7/dist-packages/torch/multiprocessing/reductions.py", line 68, in rebuild_storage_fd
    fd = multiprocessing.reduction.rebuild_handle(df)
  File "/usr/lib/python2.7/multiprocessing/reduction.py", line 157, in rebuild_handle
    new_handle = recv_handle(conn)
  File "/usr/lib/python2.7/multiprocessing/reduction.py", line 83, in recv_handle
    return _multiprocessing.recvfd(conn.fileno())
OSError: [Errno 4] Interrupted system call
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
  File "/usr/lib/python2.7/atexit.py", line 24, in _run_exitfuncs
    func(*targs, **kargs)
  File "/usr/lib/python2.7/multiprocessing/util.py", line 325, in _exit_function
Error in sys.exitfunc:
Exception RuntimeError: RuntimeError('DataLoader worker (pid 23604) is killed by signal: Terminated.',) in <bound method DataLoaderIter.__del__ of <torch.utils.data.dataloader.DataLoaderIter object at 0x7f73ba2c8850>> ignored
Exception IOError: IOError(104, 'Connection reset by peer') in <bound method DataLoaderIter.__del__ of <torch.utils.data.dataloader.DataLoaderIter object at 0x7f73ba2c1890>> ignored
Traceback (most recent call last):
  File "/usr/lib/python2.7/atexit.py", line 30, in _run_exitfuncs
    traceback.print_exc()
  File "/usr/lib/python2.7/traceback.py", line 233, in print_exc
    print_exception(etype, value, tb, limit, file)
  File "/usr/lib/python2.7/traceback.py", line 125, in print_exception
    print_tb(tb, limit, file)
  File "/usr/lib/python2.7/traceback.py", line 69, in print_tb
    line = linecache.getline(filename, lineno, f.f_globals)
  File "/usr/lib/python2.7/linecache.py", line 14, in getline
    lines = getlines(filename, module_globals)
  File "/usr/lib/python2.7/linecache.py", line 40, in getlines
    return updatecache(filename, module_globals)
  File "/usr/lib/python2.7/linecache.py", line 133, in updatecache
    lines = fp.readlines()
  File "/usr/local/lib/python2.7/dist-packages/torch/utils/data/dataloader.py", line 172, in handler
    _error_if_any_worker_fails()
RuntimeError: DataLoader worker (pid 23616) is killed by signal: Terminated.