From 3b44103b7cd689bb30e5e379f67c8a1c8ad9c618 Mon Sep 17 00:00:00 2001 From: MaxThevenet Date: Mon, 23 Sep 2019 16:48:45 -0700 Subject: fix and add comments --- Source/Particles/PhysicalParticleContainer.cpp | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) (limited to 'Source/Particles/PhysicalParticleContainer.cpp') diff --git a/Source/Particles/PhysicalParticleContainer.cpp b/Source/Particles/PhysicalParticleContainer.cpp index 8eec9ae41..8dfddc833 100644 --- a/Source/Particles/PhysicalParticleContainer.cpp +++ b/Source/Particles/PhysicalParticleContainer.cpp @@ -1363,8 +1363,14 @@ PhysicalParticleContainer::Evolve (int lev, } } } - // Split particles - if (do_splitting && a_dt_type == DtType::SecondHalf && WarpX::do_subcycling == 1){ + // Split particles at the end of the timestep. + // When subcycling is ON, the splitting is done on the last call to + // PhysicalParticleContainer::Evolve on the finest level, i.e., at the + // end of the large timestep. Otherwise, the pushes on different levels + // are not consistent, and the call to Redistribute (inside + // SplitParticles) may result in split particles to deposit twice on the + // coarse level. + if (do_splitting && (a_dt_type == DtType::SecondHalf || a_dt_type == DtType::Full) ){ SplitParticles(lev); } } -- cgit v1.2.3 e='ciro/fix-maxRequestBodySize'>ciro/fix-maxRequestBodySize Unnamed repository; edit this file 'description' to name the repository.
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