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93 lines
3.0 KiB
93 lines
3.0 KiB
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <CpuExecutor.h>
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#include <gtest/gtest.h>
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#include <omp.h>
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#include <unistd.h>
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#include <algorithm>
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#include <memory>
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#include <random>
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#include <thread>
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#include <vector>
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namespace {
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class OpenmpSettingsTest : public ::testing::Test {
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protected:
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virtual void SetUp() override {
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const int blocktimeInitial = kmp_get_blocktime();
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ASSERT_EQ(blocktimeInitial, kOpenmpDefaultBlockTime);
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}
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virtual void TearDown() override {
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const int blocktimeRestored = kmp_get_blocktime();
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ASSERT_EQ(blocktimeRestored, kOpenmpDefaultBlockTime);
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}
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static const int kOpenmpDefaultBlockTime;
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static const int kPreferredBlockTime;
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};
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const int OpenmpSettingsTest::kOpenmpDefaultBlockTime = 200;
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const int OpenmpSettingsTest::kPreferredBlockTime = 20;
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using ::android::nn::ScopedOpenmpSettings;
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TEST_F(OpenmpSettingsTest, TestkPreferredBlockTime) {
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ScopedOpenmpSettings s;
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const int blocktimeSet = kmp_get_blocktime();
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ASSERT_EQ(blocktimeSet, kPreferredBlockTime);
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}
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TEST_F(OpenmpSettingsTest, Test2) {
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ScopedOpenmpSettings s1;
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const int blocktimeSet1 = kmp_get_blocktime();
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ASSERT_EQ(blocktimeSet1, kPreferredBlockTime);
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ScopedOpenmpSettings s2;
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const int blocktimeSet2 = kmp_get_blocktime();
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ASSERT_EQ(blocktimeSet2, kPreferredBlockTime);
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}
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TEST_F(OpenmpSettingsTest, TestThreaded) {
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// Threaded test to validate that each thread gets its own settings.
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std::vector<std::thread> threads;
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std::mt19937 randGen;
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std::uniform_int_distribution<> rand(1, 20);
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for (int i = 0; i < 10; i++) {
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const int sleepFor = rand(randGen);
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threads.push_back(std::thread([sleepFor]() {
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const int blocktimeInitial = kmp_get_blocktime();
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// kmp_get_blocktime() in a new thread returns 0 instead of 200
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// about 10% of time on-device
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ASSERT_TRUE(blocktimeInitial == 0 || blocktimeInitial == kOpenmpDefaultBlockTime);
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ScopedOpenmpSettings s;
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const int blocktimeSet1 = kmp_get_blocktime();
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ASSERT_EQ(blocktimeSet1, kPreferredBlockTime);
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usleep(sleepFor);
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const int blocktimeSet2 = kmp_get_blocktime();
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ASSERT_EQ(blocktimeSet2, kPreferredBlockTime);
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}));
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}
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std::for_each(threads.begin(), threads.end(), [](std::thread& t) { t.join(); });
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}
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} // end namespace
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