201 lines
6.5 KiB
C++
201 lines
6.5 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_worklet_ParticleAdvection_h
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#define vtk_m_worklet_ParticleAdvection_h
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#include <vtkm/Types.h>
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#include <vtkm/cont/ArrayCopy.h>
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#include <vtkm/cont/ArrayHandle.h>
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#include <vtkm/worklet/particleadvection/ParticleAdvectionWorklets.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 FieldType>
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struct ParticleAdvectionResult
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{
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ParticleAdvectionResult()
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: positions()
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, status()
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, stepsTaken()
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{
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}
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ParticleAdvectionResult(const vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3>>& pos,
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const vtkm::cont::ArrayHandle<vtkm::Id>& stat,
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const vtkm::cont::ArrayHandle<vtkm::Id>& steps)
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: positions(pos)
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, status(stat)
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, stepsTaken(steps)
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{
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}
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vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3>> positions;
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vtkm::cont::ArrayHandle<vtkm::Id> status;
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vtkm::cont::ArrayHandle<vtkm::Id> stepsTaken;
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};
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class ParticleAdvection
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{
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public:
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ParticleAdvection() {}
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template <typename IntegratorType,
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typename FieldType,
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typename PointStorage,
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typename DeviceAdapter>
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ParticleAdvectionResult<FieldType> Run(
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const IntegratorType& it,
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const vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3>, PointStorage>& pts,
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const vtkm::Id& nSteps,
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const DeviceAdapter&)
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{
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vtkm::worklet::particleadvection::ParticleAdvectionWorklet<IntegratorType,
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FieldType,
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DeviceAdapter>
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worklet;
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vtkm::cont::ArrayHandle<vtkm::Id> stepsTaken, status;
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vtkm::Id numSeeds = static_cast<vtkm::Id>(pts.GetNumberOfValues());
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//Allocate status and steps arrays.
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vtkm::cont::ArrayHandleConstant<vtkm::Id> init(0, numSeeds);
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stepsTaken.Allocate(numSeeds);
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vtkm::cont::ArrayCopy(init, stepsTaken, DeviceAdapter());
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vtkm::cont::ArrayHandleConstant<vtkm::Id> statusOK(static_cast<vtkm::Id>(1), numSeeds);
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status.Allocate(numSeeds);
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vtkm::cont::ArrayCopy(statusOK, status, DeviceAdapter());
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worklet.Run(it, pts, nSteps, status, stepsTaken);
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//Create output.
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ParticleAdvectionResult<FieldType> res(pts, status, stepsTaken);
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return res;
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}
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template <typename IntegratorType,
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typename FieldType,
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typename PointStorage,
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typename DeviceAdapter>
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ParticleAdvectionResult<FieldType> Run(
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const IntegratorType& it,
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const vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3>, PointStorage>& pts,
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const vtkm::cont::ArrayHandle<vtkm::Id>& stepsAlreadyTaken,
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const vtkm::Id& nSteps,
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const DeviceAdapter&)
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{
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vtkm::worklet::particleadvection::ParticleAdvectionWorklet<IntegratorType,
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FieldType,
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DeviceAdapter>
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worklet;
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vtkm::cont::ArrayHandle<vtkm::Id> stepsTaken, status;
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vtkm::Id numSeeds = static_cast<vtkm::Id>(pts.GetNumberOfValues());
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//Allocate status and steps arrays.
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stepsTaken.Allocate(numSeeds);
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vtkm::cont::ArrayCopy(stepsAlreadyTaken, stepsTaken, DeviceAdapter());
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vtkm::cont::ArrayHandleConstant<vtkm::Id> statusOK(static_cast<vtkm::Id>(1), numSeeds);
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status.Allocate(numSeeds);
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vtkm::cont::ArrayCopy(statusOK, status, DeviceAdapter());
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worklet.Run(it, pts, nSteps, status, stepsTaken);
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//Create output.
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ParticleAdvectionResult<FieldType> res(pts, status, stepsTaken);
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return res;
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}
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};
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template <typename FieldType>
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struct StreamlineResult
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{
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StreamlineResult()
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: positions()
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, polyLines()
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, status()
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, stepsTaken()
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{
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}
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StreamlineResult(const vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3>>& pos,
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const vtkm::cont::CellSetExplicit<>& lines,
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const vtkm::cont::ArrayHandle<vtkm::Id>& stat,
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const vtkm::cont::ArrayHandle<vtkm::Id>& steps)
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: positions(pos)
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, polyLines(lines)
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, status(stat)
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, stepsTaken(steps)
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{
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}
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vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3>> positions;
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vtkm::cont::CellSetExplicit<> polyLines;
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vtkm::cont::ArrayHandle<vtkm::Id> status;
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vtkm::cont::ArrayHandle<vtkm::Id> stepsTaken;
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};
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class Streamline
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{
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public:
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Streamline() {}
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template <typename IntegratorType,
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typename FieldType,
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typename PointStorage,
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typename DeviceAdapter>
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StreamlineResult<FieldType> Run(
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const IntegratorType& it,
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const vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3>, PointStorage>& seedArray,
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const vtkm::Id& nSteps,
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const DeviceAdapter&)
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{
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typedef typename vtkm::cont::DeviceAdapterAlgorithm<DeviceAdapter> DeviceAlgorithm;
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vtkm::worklet::particleadvection::StreamlineWorklet<IntegratorType, FieldType, DeviceAdapter>
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worklet;
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vtkm::cont::ArrayHandle<vtkm::Vec<FieldType, 3>, PointStorage> positions;
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vtkm::cont::CellSetExplicit<> polyLines;
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//Allocate status and steps arrays.
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vtkm::Id numSeeds = seedArray.GetNumberOfValues();
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vtkm::Id val = vtkm::worklet::particleadvection::ParticleStatus::STATUS_OK;
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vtkm::cont::ArrayHandle<vtkm::Id> status, steps;
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vtkm::cont::ArrayHandleConstant<vtkm::Id> ok(val, numSeeds);
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status.Allocate(numSeeds);
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DeviceAlgorithm::Copy(ok, status);
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vtkm::cont::ArrayHandleConstant<vtkm::Id> zero(0, numSeeds);
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steps.Allocate(numSeeds);
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DeviceAlgorithm::Copy(zero, steps);
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worklet.Run(it, seedArray, nSteps, positions, polyLines, status, steps);
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StreamlineResult<FieldType> res(positions, polyLines, status, steps);
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return res;
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}
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};
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}
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}
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#endif // vtk_m_worklet_ParticleAdvection_h
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