mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 18:45:43 +00:00
bddad9b386
Now that the dispatcher does its own TryExecute, filters do not need to do that. This change requires all worklets called by filters to be able to execute without knowing the device a priori.
267 lines
9.6 KiB
C++
267 lines
9.6 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_worklet_Gradient_h
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#define vtk_m_worklet_Gradient_h
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#include <vtkm/worklet/DispatcherMapTopology.h>
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#include <vtkm/worklet/DispatcherPointNeighborhood.h>
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#include <vtkm/worklet/gradient/CellGradient.h>
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#include <vtkm/worklet/gradient/Divergence.h>
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#include <vtkm/worklet/gradient/GradientOutput.h>
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#include <vtkm/worklet/gradient/PointGradient.h>
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#include <vtkm/worklet/gradient/QCriterion.h>
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#include <vtkm/worklet/gradient/StructuredPointGradient.h>
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#include <vtkm/worklet/gradient/Transpose.h>
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#include <vtkm/worklet/gradient/Vorticity.h>
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namespace vtkm
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{
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namespace worklet
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{
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template <typename T>
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struct GradientOutputFields;
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namespace gradient
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{
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//-----------------------------------------------------------------------------
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template <typename CoordinateSystem, typename T, typename S>
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struct DeducedPointGrad
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{
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DeducedPointGrad(const CoordinateSystem& coords,
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const vtkm::cont::ArrayHandle<T, S>& field,
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GradientOutputFields<T>* result)
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: Points(&coords)
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, Field(&field)
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, Result(result)
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{
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}
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template <typename CellSetType>
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void operator()(const CellSetType& cellset) const
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{
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vtkm::worklet::DispatcherMapTopology<PointGradient<T>> dispatcher;
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dispatcher.Invoke(cellset, //topology to iterate on a per point basis
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cellset, //whole cellset in
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*this->Points,
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*this->Field,
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*this->Result);
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}
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void operator()(const vtkm::cont::CellSetStructured<3>& cellset) const
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{
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vtkm::worklet::DispatcherPointNeighborhood<StructuredPointGradient<T>> dispatcher;
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dispatcher.Invoke(cellset, //topology to iterate on a per point basis
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*this->Points,
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*this->Field,
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*this->Result);
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}
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template <typename PermIterType>
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void operator()(const vtkm::cont::CellSetPermutation<vtkm::cont::CellSetStructured<3>,
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PermIterType>& cellset) const
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{
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vtkm::worklet::DispatcherPointNeighborhood<StructuredPointGradient<T>> dispatcher;
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dispatcher.Invoke(cellset, //topology to iterate on a per point basis
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*this->Points,
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*this->Field,
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*this->Result);
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}
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void operator()(const vtkm::cont::CellSetStructured<2>& cellset) const
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{
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vtkm::worklet::DispatcherPointNeighborhood<StructuredPointGradient<T>> dispatcher;
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dispatcher.Invoke(cellset, //topology to iterate on a per point basis
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*this->Points,
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*this->Field,
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*this->Result);
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}
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template <typename PermIterType>
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void operator()(const vtkm::cont::CellSetPermutation<vtkm::cont::CellSetStructured<2>,
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PermIterType>& cellset) const
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{
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vtkm::worklet::DispatcherPointNeighborhood<StructuredPointGradient<T>> dispatcher;
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dispatcher.Invoke(cellset, //topology to iterate on a per point basis
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*this->Points,
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*this->Field,
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*this->Result);
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}
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const CoordinateSystem* const Points;
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const vtkm::cont::ArrayHandle<T, S>* const Field;
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GradientOutputFields<T>* Result;
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private:
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void operator=(const DeducedPointGrad<CoordinateSystem, T, S>&) = delete;
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};
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} //namespace gradient
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template <typename T>
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struct GradientOutputFields : public vtkm::cont::ExecutionObjectBase
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{
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using ValueType = T;
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using BaseTType = typename vtkm::BaseComponent<T>::Type;
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template <typename DeviceAdapter>
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struct ExecutionTypes
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{
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using Portal = vtkm::exec::GradientOutput<T>;
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};
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GradientOutputFields()
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: Gradient()
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, Divergence()
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, Vorticity()
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, QCriterion()
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, StoreGradient(true)
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, ComputeDivergence(false)
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, ComputeVorticity(false)
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, ComputeQCriterion(false)
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{
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}
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GradientOutputFields(bool store, bool divergence, bool vorticity, bool qc)
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: Gradient()
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, Divergence()
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, Vorticity()
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, QCriterion()
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, StoreGradient(store)
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, ComputeDivergence(divergence)
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, ComputeVorticity(vorticity)
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, ComputeQCriterion(qc)
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{
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}
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/// Add divergence field to the output data.
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/// The input array must have 3 components in order to compute this.
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/// The default is off.
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void SetComputeDivergence(bool enable) { ComputeDivergence = enable; }
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bool GetComputeDivergence() const { return ComputeDivergence; }
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/// Add voriticity/curl field to the output data.
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/// The input array must have 3 components in order to compute this.
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/// The default is off.
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void SetComputeVorticity(bool enable) { ComputeVorticity = enable; }
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bool GetComputeVorticity() const { return ComputeVorticity; }
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/// Add Q-criterion field to the output data.
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/// The input array must have 3 components in order to compute this.
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/// The default is off.
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void SetComputeQCriterion(bool enable) { ComputeQCriterion = enable; }
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bool GetComputeQCriterion() const { return ComputeQCriterion; }
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/// Add gradient field to the output data.
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/// The input array must have 3 components in order to disable this.
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/// The default is on.
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void SetComputeGradient(bool enable) { StoreGradient = enable; }
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bool GetComputeGradient() const { return StoreGradient; }
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//todo fix this for scalar
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vtkm::exec::GradientOutput<T> PrepareForOutput(vtkm::Id size)
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{
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vtkm::exec::GradientOutput<T> portal(this->StoreGradient,
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this->ComputeDivergence,
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this->ComputeVorticity,
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this->ComputeQCriterion,
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this->Gradient,
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this->Divergence,
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this->Vorticity,
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this->QCriterion,
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size);
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return portal;
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}
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vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> Gradient;
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vtkm::cont::ArrayHandle<BaseTType> Divergence;
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vtkm::cont::ArrayHandle<vtkm::Vec<BaseTType, 3>> Vorticity;
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vtkm::cont::ArrayHandle<BaseTType> QCriterion;
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private:
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bool StoreGradient;
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bool ComputeDivergence;
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bool ComputeVorticity;
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bool ComputeQCriterion;
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};
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class PointGradient
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{
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public:
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template <typename CellSetType, typename CoordinateSystem, typename T, typename S>
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vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> Run(const CellSetType& cells,
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const CoordinateSystem& coords,
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const vtkm::cont::ArrayHandle<T, S>& field)
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{
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vtkm::worklet::GradientOutputFields<T> extraOutput(true, false, false, false);
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return this->Run(cells, coords, field, extraOutput);
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}
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template <typename CellSetType, typename CoordinateSystem, typename T, typename S>
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vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> Run(const CellSetType& cells,
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const CoordinateSystem& coords,
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const vtkm::cont::ArrayHandle<T, S>& field,
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GradientOutputFields<T>& extraOutput)
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{
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//we are using cast and call here as we pass the cells twice to the invoke
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//and want the type resolved once before hand instead of twice
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//by the dispatcher ( that will cost more in time and binary size )
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gradient::DeducedPointGrad<CoordinateSystem, T, S> func(coords, field, &extraOutput);
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vtkm::cont::CastAndCall(cells, func);
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return extraOutput.Gradient;
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}
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};
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class CellGradient
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{
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public:
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template <typename CellSetType, typename CoordinateSystem, typename T, typename S>
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vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> Run(const CellSetType& cells,
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const CoordinateSystem& coords,
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const vtkm::cont::ArrayHandle<T, S>& field)
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{
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vtkm::worklet::GradientOutputFields<T> extra(true, false, false, false);
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return this->Run(cells, coords, field, extra);
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}
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template <typename CellSetType, typename CoordinateSystem, typename T, typename S>
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vtkm::cont::ArrayHandle<vtkm::Vec<T, 3>> Run(const CellSetType& cells,
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const CoordinateSystem& coords,
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const vtkm::cont::ArrayHandle<T, S>& field,
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GradientOutputFields<T>& extraOutput)
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{
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using DispatcherType =
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vtkm::worklet::DispatcherMapTopology<vtkm::worklet::gradient::CellGradient<T>>;
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vtkm::worklet::gradient::CellGradient<T> worklet;
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DispatcherType dispatcher(worklet);
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dispatcher.Invoke(cells, coords, field, extraOutput);
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return extraOutput.Gradient;
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}
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};
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}
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} // namespace vtkm::worklet
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#endif
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