alongstep/detail/UniformFieldPropagatorFactory.hh

0001 //------------------------------- -*- C++ -*- -------------------------------//
0002 // Copyright Celeritas contributors: see top-level COPYRIGHT file for details
0003 // SPDX-License-Identifier: (Apache-2.0 OR MIT)
0004 //---------------------------------------------------------------------------//
0005 //! \file celeritas/alongstep/detail/UniformFieldPropagatorFactory.hh
0006 //---------------------------------------------------------------------------//
0007 #pragma once
0008
0009 #include "corecel/Macros.hh"
0010 #include "celeritas/field/DormandPrinceIntegrator.hh"  // IWYU pragma: associated
0011 #include "celeritas/field/MakeMagFieldPropagator.hh"  // IWYU pragma: associated
0012 #include "celeritas/field/UniformField.hh"  // IWYU pragma: associated
0013 #include "celeritas/field/UniformFieldData.hh"  // IWYU pragma: associated
0014
0015 namespace celeritas
0016 {
0017 namespace detail
0018 {
0019 //---------------------------------------------------------------------------//
0020 /*!
0021  * Propagate a track in a uniform magnetic field.
0022  */
0023 struct UniformFieldPropagatorFactory
0024 {
0025 #if CELER_USE_DEVICE
0026     inline static constexpr int max_block_size = 256;
0027 #endif
0028
0029     CELER_FUNCTION decltype(auto) operator()(CoreTrackView const& track) const
0030     {
0031         return make_mag_field_propagator<DormandPrinceIntegrator>(
0032             UniformField(field.field),
0033             field.options,
0034             track.particle(),
0035             track.geometry());
0036     }
0037
0038     static CELER_CONSTEXPR_FUNCTION bool tracks_can_loop() { return true; }
0039
0040     //// DATA ////
0041
0042     NativeCRef<UniformFieldParamsData> field;
0043 };
0044
0045 //---------------------------------------------------------------------------//
0046 }  // namespace detail
0047 }  // namespace celeritas