在notbook上运行的

前几天一直都能用的代码突然就报错，急求，致以诚挚感谢

/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py:782: UserWarning: The following exception is not an EOF exception.
"The following exception is not an EOF exception.")

---------------------------------------------------------------------------EnforceNotMet Traceback (most recent call last) in
16 loss, acc1, pred_ot = exe.run(main_program,
17 feed=feeder.feed(data),
---> 18 fetch_list=train_fetch_list)
19 t2 = time.time()
20 batch_id += 1
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py in run(self, program, feed, fetch_list, feed_var_name, fetch_var_name, scope, return_numpy, use_program_cache)
781 warnings.warn(
782 "The following exception is not an EOF exception.")
--> 783 six.reraise(*sys.exc_info())
784
785 def _run_impl(self, program, feed, fetch_list, feed_var_name,
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/six.py in reraise(tp, value, tb)
691 if value.__traceback__ is not tb:
692 raise value.with_traceback(tb)
--> 693 raise value
694 finally:
695 value = None
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py in run(self, program, feed, fetch_list, feed_var_name, fetch_var_name, scope, return_numpy, use_program_cache)
776 scope=scope,
777 return_numpy=return_numpy,
--> 778 use_program_cache=use_program_cache)
779 except Exception as e:
780 if not isinstance(e, core.EOFException):
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py in _run_impl(self, program, feed, fetch_list, feed_var_name, fetch_var_name, scope, return_numpy, use_program_cache)
829 scope=scope,
830 return_numpy=return_numpy,
--> 831 use_program_cache=use_program_cache)
832
833 program._compile(scope, self.place)
/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/executor.py in _run_program(self, program, feed, fetch_list, feed_var_name, fetch_var_name, scope, return_numpy, use_program_cache)
903 if not use_program_cache:
904 self._default_executor.run(program.desc, scope, 0, True, True,
--> 905 fetch_var_name)
906 else:
907 self._default_executor.run_prepared_ctx(ctx, scope, False, False,
EnforceNotMet:

--------------------------------------------
C++ Call Stacks (More useful to developers):
--------------------------------------------
0 std::string paddle::platform::GetTraceBackString(char const*&&, char const*, int)
1 paddle::platform::EnforceNotMet::EnforceNotMet(std::__exception_ptr::exception_ptr, char const*, int)
2 paddle::platform::CUDADeviceContext::Wait() const
3 paddle::framework::Executor::RunPreparedContext(paddle::framework::ExecutorPrepareContext*, paddle::framework::Scope*, bool, bool, bool)
4 paddle::framework::Executor::Run(paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool, std::vector > const&, bool, bool)
5 paddle::operators::ConditionalBlockOp::RunImpl(paddle::framework::Scope const&, paddle::platform::Place const&) const
6 paddle::framework::OperatorBase::Run(paddle::framework::Scope const&, paddle::platform::Place const&)
7 paddle::framework::Executor::RunPreparedContext(paddle::framework::ExecutorPrepareContext*, paddle::framework::Scope*, bool, bool, bool)
8 paddle::framework::Executor::Run(paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool, std::vector > const&, bool, bool)

----------------------
Error Message Summary:
----------------------
FatalError: cudaStreamSynchronize raises error: unspecified launch failure, errono: 4: unspecified launch failure at (/paddle/paddle/fluid/platform/device_context.cc:331)