/**

 * Copyright (c) 2025 Huawei Technologies Co., Ltd.

 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of

 * CANN Open Software License Agreement Version 2.0 (the "License").

 * Please refer to the License for details. You may not use this file except in compliance with the License.

 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,

 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

 * See LICENSE in the root of the software repository for the full text of the License.

 */



#include <iostream>

#include "utils.h"

#include "acl/acl.h"

using namespace std;



// 耗时较长的核函数，功能为x自增1

extern void LongOP(uint32_t coreDim, void *stream, uint32_t* x);

// 耗时较短的核函数，功能为x自乘2

extern void ShortOP(uint32_t coreDim, void *stream, uint32_t* x);



int main()

{

    // 初始化

    int32_t deviceId = 0;

    uint32_t blockDim = 1;

    uint32_t num = 0;

    uint32_t *numDevice = nullptr;

    size_t size = sizeof(uint32_t);

    uint64_t time = 0;

    float useTime = 0;

    aclrtStream stream = nullptr;

    aclrtStreamStatus streamStatus;

    aclrtContext context;

    aclrtEvent startEvent;

    aclrtEvent endEvent;

    CHECK_ERROR(aclInit(nullptr));



    // 申请设备

    CHECK_ERROR(aclrtSetDevice(deviceId));

    CHECK_ERROR(aclrtCreateContext(&context, deviceId));

    CHECK_ERROR(aclrtCreateStream(&stream));

    CHECK_ERROR(aclrtSetStreamFailureMode(stream, ACL_STOP_ON_FAILURE));

    CHECK_ERROR(aclrtCreateEvent(&startEvent));

    CHECK_ERROR(aclrtCreateEvent(&endEvent));



    // 先做一个短时任务查看耗时

    CHECK_ERROR(aclrtMalloc((void **)&numDevice, size, ACL_MEM_MALLOC_HUGE_FIRST));

    CHECK_ERROR(aclrtMemcpy(numDevice, size, &num, size, ACL_MEMCPY_HOST_TO_DEVICE));

    INFO_LOG("Begin a short task.");

    // 做任务前记录一次，做任务后再记录一次，相差时间则为任务耗时。

    CHECK_ERROR(aclrtRecordEvent(startEvent, stream));

    ShortOP(blockDim, stream, numDevice);

    CHECK_ERROR(aclrtRecordEvent(endEvent, stream));

    CHECK_ERROR(aclrtSynchronizeStream(stream));

    CHECK_ERROR(aclrtMemcpy(&num, size, numDevice, size, ACL_MEMCPY_DEVICE_TO_HOST));

    INFO_LOG("After completing the short task, the answer is %d.", num);

    INFO_LOG("After synchronize, check the time.");



    // 查找时间戳以及计算耗时

    CHECK_ERROR(aclrtEventGetTimestamp(startEvent, &time));

    INFO_LOG("Start event timestamp: %ld.", time);

    CHECK_ERROR(aclrtEventGetTimestamp(endEvent, &time));

    INFO_LOG("End event timestamp: %ld.", time);

    CHECK_ERROR(aclrtEventElapsedTime(&useTime, startEvent, endEvent));

    INFO_LOG("The short task consume time %f ms.", useTime);



    // 再做一个长耗时任务查看耗时

    CHECK_ERROR(aclrtMalloc((void **)&numDevice, size, ACL_MEM_MALLOC_HUGE_FIRST));

    CHECK_ERROR(aclrtMemcpy(numDevice, size, &num, size, ACL_MEMCPY_HOST_TO_DEVICE));

    INFO_LOG("Begin a short task.");

    CHECK_ERROR(aclrtRecordEvent(startEvent, stream));

    LongOP(blockDim, stream, numDevice);

    CHECK_ERROR(aclrtRecordEvent(endEvent, stream));

    CHECK_ERROR(aclrtSynchronizeStream(stream));

    CHECK_ERROR(aclrtMemcpy(&num, size, numDevice, size, ACL_MEMCPY_DEVICE_TO_HOST));

    INFO_LOG("After completing the long task, the answer is %d.", num);

    INFO_LOG("After synchronize, check the time.");



    // 查找时间戳以及计算耗时

    CHECK_ERROR(aclrtEventGetTimestamp(startEvent, &time));

    INFO_LOG("Start event timestamp: %ld.", time);

    CHECK_ERROR(aclrtEventGetTimestamp(endEvent, &time));

    INFO_LOG("End event timestamp: %ld.", time);

    CHECK_ERROR(aclrtEventElapsedTime(&useTime, startEvent, endEvent));

    INFO_LOG("The short task consume time %f ms.", useTime);



    // 释放资源

    CHECK_ERROR(aclrtFree(numDevice));

    CHECK_ERROR(aclrtDestroyEvent(startEvent));

    CHECK_ERROR(aclrtDestroyEvent(endEvent));

    CHECK_ERROR(aclrtDestroyStreamForce(stream));

    CHECK_ERROR(aclrtDestroyContext(context));

    CHECK_ERROR(aclrtResetDeviceForce(deviceId));

    aclFinalize();

    INFO_LOG("Resource cleanup completed.");

}