+/*
+ * This file is part of the GROMACS molecular simulation package.
+ *
+ * Copyright (c) 2021, by the GROMACS development team, led by
+ * Mark Abraham, David van der Spoel, Berk Hess, and Erik Lindahl,
+ * and including many others, as listed in the AUTHORS file in the
+ * top-level source directory and at http://www.gromacs.org.
+ *
+ * GROMACS is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1
+ * of the License, or (at your option) any later version.
+ *
+ * GROMACS is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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+ *
+ * You should have received a copy of the GNU Lesser General Public
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+ */
+
+/*! \internal \file
+ * \brief Implements stub GPU 3D FFT routines for CPU-only builds
+ *
+ * \author Mark Abraham <mark.j.abraham@gmail.com>
+ * \ingroup module_fft
+ */
+
+#include "gmxpre.h"
+
+#include "gpu_3dfft.h"
+
+#include "gromacs/utility/exceptions.h"
+
+namespace gmx
+{
+
+// [[noreturn]] attributes must be added in the common headers, so it's easier to silence the warning here
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wmissing-noreturn"
+
+class Gpu3dFft::Impl
+{
+};
+
+Gpu3dFft::Gpu3dFft(ivec /*realGridSize*/,
+ ivec /*realGridSizePadded*/,
+ ivec /*complexGridSizePadded*/,
+ const bool /*useDecomposition*/,
+ const bool /*performOutOfPlaceFFT*/,
+ const DeviceContext& /*context*/,
+ const DeviceStream& /*pmeStream*/,
+ DeviceBuffer<float> /*realGrid*/,
+ DeviceBuffer<float> /*complexGrid*/)
+{
+ GMX_THROW(InternalError("Cannot run GPU routines in a CPU-only configuration"));
+}
+
+Gpu3dFft::~Gpu3dFft() = default;
+
+// NOLINTNEXTLINE readability-convert-member-functions-to-static
+void Gpu3dFft::perform3dFft(gmx_fft_direction /*dir*/, CommandEvent* /*timingEvent*/)
+{
+ GMX_THROW(InternalError("Cannot run GPU routines in a CPU-only configuration"));
+}
+
+#pragma clang diagnostic pop
+
+} // namespace gmx