tests/cpp/operator/mkldnn.cc

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

/*!
 *  \file mkldnn.cc
 *  \brief test functions in mkldnn.
 *  \author Da Zheng
 */

#if MXNET_USE_MKLDNN == 1

#include "gtest/gtest.h"
#include "../../src/operator/nn/mkldnn/mkldnn_base-inl.h"

bool test_mem_align(void *mem, size_t size, size_t alignment, size_t space) {
  void *ret1, *ret2;
  size_t space1, space2;
  space1 = space;
  space2 = space;
  ret1 = mxnet::AlignMem(mem, size, alignment, &space1);
  ret2 = std::align(alignment, size, mem, space2);
  EXPECT_EQ(ret1, ret2);
  EXPECT_EQ(space1, space2);
  return ret1 == ret2;
}

TEST(MKLDNN_UTIL_FUNC, AlignMem) {
  size_t alignment = 4096;
  void *mem;
  size_t size, space;

  // When mem has been aligned.
  mem = reinterpret_cast<void *>(0x10000);
  size = 1000;
  space = 10000;
  test_mem_align(mem, size, alignment, space);

  // When mem isn't aligned and we have enough space for alignment.
  mem = reinterpret_cast<void *>(0x10010);
  size = 1000;
  space = 10000;
  test_mem_align(mem, size, alignment, space);

  // When mem isn't aligned and we don't have enough memory for alignment
  mem = reinterpret_cast<void *>(0x10010);
  size = 1000;
  space = 1001;
  test_mem_align(mem, size, alignment, space);

  for (size_t i = 0; i < 10000; i++) {
    mem = reinterpret_cast<void *>(random());
    size = random() % 2000;
    space = random() % 2000;
    test_mem_align(mem, size, alignment, space);
  }
}
#endif