# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

import os

import numpy as np

import paddle.fluid as fluid
from paddle.fluid.framework import _global_flags
from paddle.fluid.layer_helper import LayerHelper


def check():
    print(
        "check: _global_flags()['FLAGS_use_mkldnn']=",
        _global_flags()["FLAGS_use_mkldnn"],
    )
    print(
        "check: fluid.get_flags('FLAGS_use_mkldnn')=",
        fluid.get_flags(['FLAGS_use_mkldnn']),
    )
    print("check: DNNL_VERBOSE=", os.environ['DNNL_VERBOSE'])
    a_np = np.random.uniform(-2, 2, (10, 20, 30)).astype(np.float32)
    helper = LayerHelper(fluid.unique_name.generate(str("test")), act="relu")
    func = helper.append_activation
    with fluid.dygraph.guard(fluid.core.CPUPlace()):
        a = fluid.dygraph.to_variable(a_np)
        res1 = func(a)
        res2 = np.maximum(a_np, 0)
    assert np.array_equal(res1.numpy(), res2)


if __name__ == '__main__':
    try:
        check()
        for k, v in sorted(os.environ.items()):
            print(k + ':', v)
        print('\n')
    except Exception as e:
        print(e)
        print(type(e))
