paddle1.7.1

出错代码片段：

#测试图片
import numpy as np
from PIL import Image
import paddle.fluid as fluid
import matplotlib.pyplot as plt
import zipfile

test_zfile = zipfile.ZipFile("/home/aistudio/data/data37389/test_new.zip")
l_test = []
for test_fname in test_zfile.namelist()[1:]:
l_test.append(test_fname)

test_img = Image.open(l_test[0])

plt.imshow(test_img)
test_img = test_img.resize((640,480))
test_im = np.array(test_img)
test_im = test_im / 255.0
test_im = test_im.transpose().reshape(1,3,640,480).astype('float32')

use = True
place1 = fluid.CUDAPlace(0) if use else fluid.CPUPlace()
# 定义一个executor
infer_exe = fluid.Executor(place1)

inference_scope = fluid.core.Scope() #要想运行一个网络，需要指明它运行所在的域，确切的说： exe.Run(&scope) 。

model_save_dir = './pretrained_model'

with fluid.scope_guard(inference_scope):
#获取训练好的模型
#从指定目录中加载 推理model(inference model)
[inference_program,feed_target_names,fetch_targets] = fluid.io.load_inference_model(model_save_dir, infer_exe)
print(fetch_targets)

results = infer_exe.run(inference_program,feed={feed_target_names[0]: test_im},fetch_list=fetch_targets)

---------------------------------------------------------------------------EnforceNotMet Traceback (most recent call last) in
34 print(fetch_targets)
35
---> 36 results = infer_exe.run(inference_program,feed={feed_target_names[0]: test_im},fetch_list=fetch_targets)
37
38 # result = results[0][0][0]
/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(std::string const&, char const*, int)
1 paddle::platform::EnforceNotMet::EnforceNotMet(std::string const&, char const*, int)
2 paddle::framework::Tensor::check_memory_size() const
3 float const* paddle::framework::Tensor::data() const
4 void paddle::operators::ElementwiseComputeEx, paddle::platform::CUDADeviceContext, float, float>(paddle::framework::ExecutionContext const&, paddle::framework::Tensor const*, paddle::framework::Tensor const*, int, paddle::operators::SubFunctor, paddle::framework::Tensor*)
5 void paddle::operators::default_elementwise_sub(paddle::framework::ExecutionContext const&, paddle::framework::Tensor const*, paddle::framework::Tensor const*, paddle::framework::Tensor*)
6 paddle::operators::ElementwiseSubKernel::Compute(paddle::framework::ExecutionContext const&) const
7 std::_Function_handler, paddle::operators::ElementwiseSubKernel, paddle::operators::ElementwiseSubKernel, paddle::operators::ElementwiseSubKernel, paddle::operators::ElementwiseSubKernel >::operator()(char const*, char const*, int) const::{lambda(paddle::framework::ExecutionContext const&)#1}>::_M_invoke(std::_Any_data const&, paddle::framework::ExecutionContext const&)
8 paddle::framework::OperatorWithKernel::RunImpl(paddle::framework::Scope const&, paddle::platform::Place const&, paddle::framework::RuntimeContext*) const
9 paddle::framework::OperatorWithKernel::RunImpl(paddle::framework::Scope const&, paddle::platform::Place const&) const
10 paddle::framework::OperatorBase::Run(paddle::framework::Scope const&, paddle::platform::Place const&)
11 paddle::framework::Executor::RunPreparedContext(paddle::framework::ExecutorPrepareContext*, paddle::framework::Scope*, bool, bool, bool)
12 paddle::framework::Executor::Run(paddle::framework::ProgramDesc const&, paddle::framework::Scope*, int, bool, bool, std::vector > const&, bool, bool)

------------------------------------------
Python Call Stacks (More useful to users):
------------------------------------------
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/framework.py", line 2525, in append_op
attrs=kwargs.get("attrs", None))
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/layer_helper.py", line 43, in append_op
return self.main_program.current_block().append_op(*args, **kwargs)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/paddle/fluid/layers/loss.py", line 343, in square_error_cost
outputs={'Out': [minus_out]})
File "", line 13, in
cost1 = fluid.layers.square_error_cost(input=predict, label=label)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 3265, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 3183, in run_ast_nodes
if (yield from self.run_code(code, result)):
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 3018, in run_cell_async
interactivity=interactivity, compiler=compiler, result=result)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/IPython/core/async_helpers.py", line 67, in _pseudo_sync_runner
coro.send(None)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 2843, in _run_cell
return runner(coro)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/IPython/core/interactiveshell.py", line 2817, in run_cell
raw_cell, store_history, silent, shell_futures)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/ipykernel/zmqshell.py", line 536, in run_cell
return super(ZMQInteractiveShell, self).run_cell(*args, **kwargs)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/ipykernel/ipkernel.py", line 294, in do_execute
res = shell.run_cell(code, store_history=store_history, silent=silent)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/tornado/gen.py", line 326, in wrapper
yielded = next(result)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/ipykernel/kernelbase.py", line 534, in execute_request
user_expressions, allow_stdin,
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/tornado/gen.py", line 326, in wrapper
yielded = next(result)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/ipykernel/kernelbase.py", line 267, in dispatch_shell
yield gen.maybe_future(handler(stream, idents, msg))
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/tornado/gen.py", line 326, in wrapper
yielded = next(result)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/ipykernel/kernelbase.py", line 357, in process_one
yield gen.maybe_future(dispatch(*args))
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/tornado/gen.py", line 1147, in run
yielded = self.gen.send(value)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/tornado/gen.py", line 1233, in inner
self.run()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/tornado/stack_context.py", line 300, in null_wrapper
return fn(*args, **kwargs)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/tornado/ioloop.py", line 758, in _run_callback
ret = callback()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/asyncio/events.py", line 88, in _run
self._context.run(self._callback, *self._args)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/asyncio/base_events.py", line 1771, in _run_once
handle._run()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/asyncio/base_events.py", line 534, in run_forever
self._run_once()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/tornado/platform/asyncio.py", line 132, in start
self.asyncio_loop.run_forever()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/ipykernel/kernelapp.py", line 505, in start
self.io_loop.start()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/traitlets/config/application.py", line 664, in launch_instance
app.start()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/site-packages/ipykernel_launcher.py", line 16, in
app.launch_new_instance()
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/runpy.py", line 85, in _run_code
exec(code, run_globals)
File "/opt/conda/envs/python35-paddle120-env/lib/python3.7/runpy.py", line 193, in _run_module_as_main
"__main__", mod_spec)

----------------------
Error Message Summary:
----------------------
Error: Tensor holds no memory. Call Tensor::mutable_data first.
[Hint: holder_ should not be null.] at (/paddle/paddle/fluid/framework/tensor.cc:23)
[operator < elementwise_sub > error]