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https://gitlab.kitware.com/vtk/vtk-m
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e28244f345
The previous implementation of DeviceAdapterRuntimeDetector caused multiple differing definitions of the same class to exist and was causing the runtime device tracker to report CUDA as disabled when it actually was enabled. The ODR was caused by having a default implementation for DeviceAdapterRuntimeDetector and a specific specialization for CUDA. If a library had both CUDA and C++ sources it would pick up both implementations and would have undefined behavior. In general it would think the CUDA backend was disabled. To avoid this kind of situation in the future I have reworked VTK-m so that each device adapter must implement DeviceAdapterRuntimeDetector for that device.
48 lines
1.5 KiB
C++
48 lines
1.5 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#ifndef vtk_m_cont_serial_internal_DeviceAdapterRuntimeDetector_h
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#define vtk_m_cont_serial_internal_DeviceAdapterRuntimeDetector_h
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#include <vtkm/cont/serial/internal/DeviceAdapterTagSerial.h>
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#include <vtkm/cont/vtkm_cont_export.h>
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namespace vtkm
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{
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namespace cont
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{
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template <class DeviceAdapterTag>
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class DeviceAdapterRuntimeDetector;
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/// Determine if this machine supports Serial backend
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///
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template <>
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class VTKM_CONT_EXPORT DeviceAdapterRuntimeDetector<vtkm::cont::DeviceAdapterTagSerial>
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{
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public:
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/// Returns true if the given device adapter is supported on the current
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/// machine.
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VTKM_CONT bool Exists() const;
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};
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}
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}
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#endif
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