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Merge pull request #5218 from BrianMarre/topic-instantFieldIonization
instant field ionization transitions
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53 changes: 0 additions & 53 deletions
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include/picongpu/particles/atomicPhysics/ExponentialApproximationProbability.hpp
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include/picongpu/particles/atomicPhysics/InstantTransitionRateLimit.hpp
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| /* Copyright 2024 Brian Marre | ||
| * | ||
| * This file is part of PIConGPU. | ||
| * | ||
| * PIConGPU is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * PIConGPU is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with PIConGPU. | ||
| * If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
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| #pragma once | ||
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| // need unit system and normalization | ||
| #include "picongpu/defines.hpp" | ||
| #include "picongpu/particles/atomicPhysics/param.hpp" | ||
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| namespace picongpu::particles::atomicPhysics | ||
| { | ||
| struct InstantTransitionRateLimit | ||
| { | ||
| /** get maximum of total state loss rate for inclusion in the time dependent rate equation solver | ||
| * | ||
| * @tparam T_ReturnType type and precision to use in the result | ||
| */ | ||
| template<typename T_ReturnType> | ||
| static constexpr T_ReturnType get() | ||
| { | ||
| using picongpu::atomicPhysics::RateSolverParam; | ||
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| // unit: unitless * unitless / unit_time = 1/unit_time | ||
| return static_cast<T_ReturnType>( | ||
| RateSolverParam::timeStepAlpha * float_X(RateSolverParam::maximumNumberSubStepsPerPICTimeStep)) | ||
| / picongpu::sim.pic.getDt<T_ReturnType>(); | ||
| } | ||
| }; | ||
| } // namespace picongpu::particles::atomicPhysics |
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include/picongpu/particles/atomicPhysics/LinearApproximationProbability.hpp
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include/picongpu/particles/atomicPhysics/kernel/CheckForFieldEnergyOverSubscription.kernel
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| /* Copyright 2024 Brian Marre | ||
| * | ||
| * This file is part of PIConGPU. | ||
| * | ||
| * PIConGPU is free software: you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License as published by | ||
| * the Free Software Foundation, either version 3 of the License, or | ||
| * (at your option) any later version. | ||
| * | ||
| * PIConGPU is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| * GNU General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU General Public License | ||
| * along with PIConGPU. | ||
| * If not, see <http://www.gnu.org/licenses/>. | ||
| */ | ||
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| #pragma once | ||
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| #include "picongpu/defines.hpp" | ||
| #include "picongpu/particles/atomicPhysics/ConvertEnum.hpp" | ||
| #include "picongpu/particles/atomicPhysics/KernelIndexation.hpp" | ||
| #include "picongpu/particles/atomicPhysics/kernel/CalculateRejectionProbability.hpp" | ||
| #include "picongpu/particles/atomicPhysics/localHelperFields/RejectionProbabilityCache_Cell.hpp" | ||
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| #include <pmacc/lockstep/ForEach.hpp> | ||
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| #include <cstdint> | ||
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| namespace picongpu::particles::atomicPhysics::kernel | ||
| { | ||
| /** check all cells for overSubscription | ||
| * | ||
| * checks each superCell cell for fieldEnergyUse > fieldEnergy, | ||
| * if yes mark cell as oversubscribed and stores rejection probability in rejection probability cache | ||
| * | ||
| * @tparam T_numberAtomicPhysicsIonSpecies specialization template parameter used to prevent compilation of all | ||
| * atomicPhysics kernels if no atomic physics species is present. | ||
| */ | ||
| template<uint32_t T_numberAtomicPhysicsIonSpecies> | ||
| struct CheckForFieldEnergyOverSubscriptionKernel | ||
| { | ||
| using VectorIdx = DataSpace<picongpu::simDim>; | ||
| /** call operator | ||
| * | ||
| * called by CheckForOverSubscription atomic physics sub-stage | ||
| * | ||
| * @param worker object containing the device and block information, passed by PMACC_KERNEL call | ||
| * @param areMapping mapping of blockIndex to block superCell index | ||
| * @param rngFactory factory for uniformly distributed random number generator | ||
| * @param eFieldBox deviceDataBox giving access to eField values for all local superCells | ||
| * @param fieldEnergyUseCacheBox deviceDataBox giving access to the field energy use cache for each local | ||
| * superCell | ||
| * @param sharedResourcesOverSubscribedBox deviceDataBox giving access to the local shared resources over | ||
| * subscription switch for each local superCell | ||
| * @param rejectionProbabilityCacheCellBox deviceDataBox giving access to localRejectionProbabilityCache for | ||
| * all cells of all local superCells | ||
| */ | ||
| template< | ||
| typename T_Worker, | ||
| typename T_AreaMapping, | ||
| typename T_TimeRemainingBox, | ||
| typename T_EFieldBox, | ||
| typename T_FieldEnergyUseCacheBox, | ||
| typename T_SharedRessourcesOverSubscribedBox, | ||
| typename T_RejectionProbabilityCacheCellDataBox> | ||
| HDINLINE void operator()( | ||
| T_Worker const& worker, | ||
| T_AreaMapping const areaMapping, | ||
| T_TimeRemainingBox const timeRemainingBox, | ||
| T_EFieldBox const eFieldBox, | ||
| T_FieldEnergyUseCacheBox const fieldEnergyUseCacheBox, | ||
| T_SharedRessourcesOverSubscribedBox sharedResourcesOverSubscribedBox, | ||
| T_RejectionProbabilityCacheCellDataBox rejectionProbabilityCacheCellBox) const | ||
| { | ||
| auto const superCellIdx = KernelIndexation::getSuperCellIndex(worker, areaMapping); | ||
| auto const superCellFieldIdx | ||
| = KernelIndexation::getSuperCellFieldIndexFromSuperCellIndex(areaMapping, superCellIdx); | ||
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| auto const timeRemaining = timeRemainingBox(superCellFieldIdx); | ||
| if(timeRemaining <= 0._X) | ||
| return; | ||
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| using FieldEnergyCache = typename T_FieldEnergyUseCacheBox::ValueType; | ||
| using RejectionProbabilityCache | ||
| = localHelperFields::RejectionProbabilityCache_Cell<FieldEnergyCache::numberCells>; | ||
| RejectionProbabilityCache& rejectionProbabilityCache = rejectionProbabilityCacheCellBox(superCellFieldIdx); | ||
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| FieldEnergyCache const& eFieldEnergyUseCache = fieldEnergyUseCacheBox(superCellFieldIdx); | ||
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| VectorIdx const superCellCellOffset = superCellIdx * picongpu::SuperCellSize::toRT(); | ||
| bool sharedResourcesOverSubscribed = false; | ||
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| auto forEachCell = pmacc::lockstep::makeForEach<FieldEnergyCache::numberCells, T_Worker>(worker); | ||
| forEachCell( | ||
| [&worker, | ||
| &superCellCellOffset, | ||
| &eFieldBox, | ||
| &eFieldEnergyUseCache, | ||
| &rejectionProbabilityCache, | ||
| &sharedResourcesOverSubscribed](uint32_t const linearCellIndex) | ||
| { | ||
| if(CalculateRejectionProbability::ofCell( | ||
| linearCellIndex, | ||
| superCellCellOffset, | ||
| eFieldBox, | ||
| eFieldEnergyUseCache, | ||
| rejectionProbabilityCache)) | ||
| sharedResourcesOverSubscribed = true; | ||
| }); | ||
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| uint32_t& flagField = sharedResourcesOverSubscribedBox(superCellFieldIdx); | ||
| // write out flag setting to device memory | ||
| alpaka::atomicOr( | ||
| worker.getAcc(), | ||
| &flagField, | ||
| u32(sharedResourcesOverSubscribed), | ||
| ::alpaka::hierarchy::Threads{}); | ||
| } | ||
| }; | ||
| } // namespace picongpu::particles::atomicPhysics::kernel |
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