135 lines
4.3 KiB
C++
135 lines
4.3 KiB
C++
//============================================================================
|
|
// Copyright (c) Kitware, Inc.
|
|
// All rights reserved.
|
|
// See LICENSE.txt for details.
|
|
// This software is distributed WITHOUT ANY WARRANTY; without even
|
|
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
|
|
// PURPOSE. See the above copyright notice for more information.
|
|
//
|
|
// Copyright 2019 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
|
|
// Copyright 2019 UT-Battelle, LLC.
|
|
// Copyright 2019 Los Alamos National Security.
|
|
//
|
|
// Under the terms of Contract DE-NA0003525 with NTESS,
|
|
// the U.S. Government retains certain rights in this software.
|
|
//
|
|
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
|
|
// Laboratory (LANL), the U.S. Government retains certain rights in
|
|
// this software.
|
|
//============================================================================
|
|
#ifndef vtkm_cont_celllocatoruniformgrid_h
|
|
#define vtkm_cont_celllocatoruniformgrid_h
|
|
|
|
#include <vtkm/cont/CellLocator.h>
|
|
#include <vtkm/cont/CellSetStructured.h>
|
|
#include <vtkm/cont/DeviceAdapterAlgorithm.h>
|
|
#include <vtkm/cont/ErrorBadDevice.h>
|
|
|
|
#include <vtkm/exec/CellLocatorUniformGrid.h>
|
|
|
|
namespace vtkm
|
|
{
|
|
|
|
namespace cont
|
|
{
|
|
|
|
class CellLocatorUniformGrid : public vtkm::cont::CellLocator
|
|
{
|
|
public:
|
|
VTKM_CONT
|
|
CellLocatorUniformGrid()
|
|
{
|
|
#ifdef VTKM_CUDA_DRP
|
|
CudaStackSizeBackup = 0;
|
|
cudaDeviceGetLimit(&CudaStackSizeBackup, cudaLimitStackSize);
|
|
#endif
|
|
}
|
|
|
|
VTKM_CONT
|
|
~CellLocatorUniformGrid()
|
|
{
|
|
#ifdef VTKM_CUDA_DRP
|
|
if (CudaStackSizeBackup > 0)
|
|
{
|
|
cudaDeviceSetLimit(cudaLimitStackSize, CudaStackSizeBackup);
|
|
CudaStackSizeBackup = 0;
|
|
}
|
|
#endif
|
|
}
|
|
|
|
VTKM_CONT
|
|
void Build() override
|
|
{
|
|
vtkm::cont::CoordinateSystem coords = this->GetCoordinates();
|
|
vtkm::cont::DynamicCellSet cellSet = this->GetCellSet();
|
|
|
|
if (!coords.GetData().IsType<UniformType>())
|
|
throw vtkm::cont::ErrorBadType("Coordinate system is not uniform type");
|
|
if (!cellSet.IsSameType(StructuredType()))
|
|
throw vtkm::cont::ErrorBadType("Cell set is not 3D structured type");
|
|
|
|
Bounds = coords.GetBounds();
|
|
CellDims = cellSet.Cast<StructuredType>().GetSchedulingRange(vtkm::TopologyElementTagCell());
|
|
|
|
RangeTransform[0] = static_cast<vtkm::FloatDefault>(CellDims[0]) /
|
|
static_cast<vtkm::FloatDefault>(Bounds.X.Length());
|
|
RangeTransform[1] = static_cast<vtkm::FloatDefault>(CellDims[1]) /
|
|
static_cast<vtkm::FloatDefault>(Bounds.Y.Length());
|
|
RangeTransform[2] = static_cast<vtkm::FloatDefault>(CellDims[2]) /
|
|
static_cast<vtkm::FloatDefault>(Bounds.Z.Length());
|
|
}
|
|
|
|
struct PrepareForExecutionFunctor
|
|
{
|
|
template <typename DeviceAdapter>
|
|
VTKM_CONT bool operator()(DeviceAdapter,
|
|
const vtkm::cont::CellLocatorUniformGrid& contLocator,
|
|
HandleType& execLocator) const
|
|
{
|
|
using ExecutionType = vtkm::exec::CellLocatorUniformGrid<DeviceAdapter>;
|
|
ExecutionType* execObject =
|
|
new ExecutionType(contLocator.Bounds,
|
|
contLocator.RangeTransform,
|
|
contLocator.CellDims,
|
|
contLocator.GetCellSet().template Cast<StructuredType>(),
|
|
contLocator.GetCoordinates().GetData(),
|
|
DeviceAdapter());
|
|
execLocator.Reset(execObject);
|
|
return true;
|
|
}
|
|
};
|
|
|
|
VTKM_CONT
|
|
const HandleType PrepareForExecutionImpl(
|
|
const vtkm::cont::DeviceAdapterId deviceId) const override
|
|
{
|
|
#ifdef VTKM_CUDA_DRP
|
|
static constexpr std::size_t stackSize = 1024 * 64;
|
|
cudaDeviceSetLimit(cudaLimitStackSize, stackSize);
|
|
#endif
|
|
const bool success = vtkm::cont::TryExecuteOnDevice(
|
|
deviceId, PrepareForExecutionFunctor(), *this, this->ExecHandle);
|
|
if (!success)
|
|
{
|
|
throwFailedRuntimeDeviceTransfer("CellLocatorUniformGrid", deviceId);
|
|
}
|
|
return this->ExecHandle;
|
|
}
|
|
|
|
private:
|
|
using UniformType = vtkm::cont::ArrayHandleUniformPointCoordinates;
|
|
using StructuredType = vtkm::cont::CellSetStructured<3>;
|
|
|
|
vtkm::Bounds Bounds;
|
|
vtkm::Vec<vtkm::FloatDefault, 3> RangeTransform;
|
|
vtkm::Vec<vtkm::Id, 3> CellDims;
|
|
mutable HandleType ExecHandle;
|
|
#ifdef VTKM_CUDA_DRP
|
|
std::size_t CudaStackSizeBackup;
|
|
#endif
|
|
};
|
|
}
|
|
}
|
|
|
|
#endif //vtkm_cont_celllocatoruniformgrid_h
|