Method try_get_value

imperative/src/impl/physical_tensor.cpp:738–744

}

const HostTensorND* Tensor::try_get_value() {
    MGB_LOCK_GUARD(m_value_mtx);
    if (!m_value.empty() && (!m_value_ready || m_value_ready->finished())) {
        return &m_value;
    }
    return nullptr;
}

TensorPtr Tensor::make_scalar(DTypeScalar value, CompNode cn) {
    HostTensorND hv{cn, value.dtype()};