Method compile_without_copy

src/gopt/test/no_memory_copy.cpp:152–154

    }

    std::unique_ptr<cg::AsyncExecutable> compile_without_copy() {
        return m_network->graph->compile({{m_out_var, nullptr}});
    }

    std::unique_ptr<cg::AsyncExecutable> compile_with_copy(HostTensorND& host) {
        auto cb = [&host](const DeviceTensorND& dv) mutable { host.copy_from(dv); };