模型卸载

// 1. 卸载模型
aclError ret = aclmdlUnload(modelId_);

// 2. 释放模型描述信息
if (modelDesc_ != nullptr) {
    (void)aclmdlDestroyDesc(modelDesc_);
    modelDesc_ = nullptr;
}

// 3. 释放模型运行的工作内存
if (modelWorkPtr_ != nullptr) {
    (void)aclrtFree(modelWorkPtr_);
    modelWorkPtr_ = nullptr;
    modelWorkSize_ = 0;
}

// 4. 释放模型运行的权值内存
if (modelWeightPtr_ != nullptr) {
    (void)aclrtFree(modelWeightPtr_);
    modelWeightPtr_ = nullptr;
    modelWeightSize_ = 0;
}