Traceback (most recent call last): File "train.py", line 33, in <module> word_dict = paddle.dataset.imikolov.build_dict() File "train.py", line 185, in main params_dirname=params_dirname) File "train.py", line 130, in train feed_order=['firstw', 'secondw', 'thirdw', 'fourthw', 'nextw']) File "/usr/local/lib/python2.7/dist-packages/paddle/fluid/trainer.py", line 246, in train feed_order) File "/usr/local/lib/python2.7/dist-packages/paddle/fluid/trainer.py", line 294, in _train_by_executor self._train_by_any_executor(event_handler, exe, num_epochs, reader) File "/usr/local/lib/python2.7/dist-packages/paddle/fluid/trainer.py", line 308, in _train_by_any_executor for var in self.train_func_outputs File "/usr/local/lib/python2.7/dist-packages/paddle/fluid/executor.py", line 340, in run self.executor.run(program.desc, scope, 0, True, True) paddle.fluid.core.EnforceNotMet: an illegal memory access was encountered at [/paddle/paddle/fluid/platform/device_context.cc:179] PaddlePaddle Call Stacks: 0 0x7f0ad536c286p paddle::platform::EnforceNotMet::EnforceNotMet(std::__exception_ptr::exception_ptr, char const*, int) + 486 1 0x7f0ad61c5f55p paddle::platform::CUDADeviceContext::Wait() const + 549 2 0x7f0ad5f0427dp paddle::framework::Vector<short>::WaitPlace(boost::variant<paddle::platform::CUDAPlace, paddle::platform::CPUPlace, paddle::platform::CUDAPinnedPlace, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>) + 141 3 0x7f0ad5f04988p paddle::framework::Vector<short>::ImmutableCUDA(boost::variant<paddle::platform::CUDAPlace, paddle::platform::CPUPlace, paddle::platform::CUDAPinnedPlace, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>) const + 712 4 0x7f0ad5f04b88p paddle::framework::Vector<short>::CUDAMutableData(boost::variant<paddle::platform::CUDAPlace, paddle::platform::CPUPlace, paddle::platform::CUDAPinnedPlace, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_>) + 136 5 0x7f0ad5f07b78p paddle::operators::math::ConcatGradFunctor<paddle::platform::CUDADeviceContext, float>::operator()(paddle::platform::CUDADeviceContext const&, paddle::framework::Tensor const&, int, std::vector<paddle::framework::Tensor, std::allocator<paddle::framework::Tensor> >*) + 728 6 0x7f0ad5d2eea8p paddle::operators::ConcatGradKernel<paddle::platform::CUDADeviceContext, float>::Compute(paddle::framework::ExecutionContext const&) const + 968 7 0x7f0ad6061506p paddle::framework::OperatorWithKernel::RunImpl(paddle::framework::Scope const&, boost::variant<paddle::platform::CUDAPlace, paddle::platform::CPUPlace, paddle::platform::CUDAPinnedPlace, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_, boost::detail::variant::void_> const&) const + 1318 8 0x7f0ad54070c7p paddle::framework::Executor::RunPreparedContext(paddle::framework::ExecutorPrepareContext*, paddle::framework::Scope*, bool, bool) + 263 9 0x7f0ad5408164p paddle::framework::Executor::Run(paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool) + 100 10 0x7f0ad538538bp void pybind11::cpp_function::initialize<pybind11::cpp_function::initialize<void, paddle::framework::Executor, paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool, pybind11::name, pybind11::is_method, pybind11::sibling>(void (paddle::framework::Executor::*)(paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&)::{lambda(paddle::framework::Executor*, paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool)#1}, void, paddle::framework::Executor*, paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool, pybind11::name, pybind11::is_method, pybind11::sibling>(pybind11::cpp_function::initialize<void, paddle::framework::Executor, paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool, pybind11::name, pybind11::is_method, pybind11::sibling>(void (paddle::framework::Executor::*)(paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&)::{lambda(paddle::framework::Executor*, paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool)#1}&&, void (*)(paddle::framework::Executor*, paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool), pybind11::name const&, pybind11::is_method const&, pybind11::sibling const&)::{lambda(pybind11::detail::function_call&)#3}::_FUN(pybind11::detail::function_call) + 555 11 0x7f0ad537da44p pybind11::cpp_function::dispatcher(_object*, _object*, _object*) + 2596 12 0x4c37edp PyEval_EvalFrameEx + 31165 13 0x4b9ab6p PyEval_EvalCodeEx + 774 14 0x4c16e7p PyEval_EvalFrameEx + 22711 15 0x4c136fp PyEval_EvalFrameEx + 21823 16 0x4c136fp PyEval_EvalFrameEx + 21823 17 0x4b9ab6p PyEval_EvalCodeEx + 774 18 0x4c16e7p PyEval_EvalFrameEx + 22711 19 0x4b9ab6p PyEval_EvalCodeEx + 774 20 0x4c1e6fp PyEval_EvalFrameEx + 24639 21 0x4b9ab6p PyEval_EvalCodeEx + 774 22 0x4c1e6fp PyEval_EvalFrameEx + 24639 23 0x4b9ab6p PyEval_EvalCodeEx + 774 24 0x4eb30fp 25 0x4e5422p PyRun_FileExFlags + 130 26 0x4e3cd6p PyRun_SimpleFileExFlags + 390 27 0x493ae2p Py_Main + 1554 28 0x7f0b7a74d830p __libc_start_main + 240 29 0x4933e9p _start + 41