change gpu_index to device_id

        return Status(SERVER_INVALID_ARGUMENT, msg);

    } else {

        uint64_t gpu_cache_capacity = std::stoi(value) * GB;

        int gpu_index;

        Status s = GetResourceConfigIndexBuildDevice(gpu_index);

        int device_id;

        Status s = GetResourceConfigIndexBuildDevice(device_id);

        if (!s.ok()) {

            return s;

        }

        if (gpu_index == server::CPU_DEVICE_ID)

        if (device_id == server::CPU_DEVICE_ID)

            return Status::OK();

        size_t gpu_memory;

        if (!ValidationUtil::GetGpuMemory(gpu_index, gpu_memory).ok()) {

            std::string msg = "Fail to get GPU memory for GPU device: " + std::to_string(gpu_index);

        if (!ValidationUtil::GetGpuMemory(device_id, gpu_memory).ok()) {

            std::string msg = "Fail to get GPU memory for GPU device: " + std::to_string(device_id);

            return Status(SERVER_UNEXPECTED_ERROR, msg);

        } else if (gpu_cache_capacity >= gpu_memory) {

            std::string msg = "Invalid gpu cache capacity: " + value +