Add random velocity initialization functions #696
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using counter for particle init will give non-intuitive results based on active threads
kwitaechong
reviewed
Sep 29, 2023
| \brief Initialize random particles given an initialization functor. | ||
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| \param tag Initialization type tag. | ||
| \param create_functor A functor which populates a particle given the logical |
| template <class ExecutionSpace, class InitFunctor, class ParticleListType, | ||
| class PositionTag, class VelocityTag, class ArrayType> | ||
| int createParticles( | ||
| InitRandom tag, InitRandom, ExecutionSpace exec_space, |
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remove the last InitRandom? or one is for position and the other is for velocity?
| auto gen = pool.get_state(); | ||
| for ( int d = 0; d < 3; ++d ) | ||
| Cabana::get( particle, VelocityTag(), d ) = | ||
| Kokkos::rand<RandomType, double>::draw( gen, 0.0, 1.0 ); |
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we don't necessarily assume its value between 0.0 and 1.0. Can we assign this value from the argument?
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Related to #692
Pass a second init tag (so far just
InitRandom) to create velocities. Version forParticleListand forSlice, both fused with the particle creation kernelNeeds more testing, more convenience interfaces, potentially more thought on sampling from distributions as compared to fully random creation