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Streamlined URR PRNG stream selection to avoid unneeded store/load ops (#2689)

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John Tramm 2023-09-11 12:26:46 -05:00 • committed by GitHub
parent 7505f61b22
commit f46d3ee37c
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2 changed files with 3 additions and 6 deletions
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4
src/physics.cpp
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@ -150,9 +150,7 @@ void sample_neutron_reaction(Particle& p)
// Advance URR seed stream 'N' times after energy changes
if (p.E() != p.E_last()) {
p.stream() = STREAM_URR_PTABLE;
advance_prn_seed(data::nuclides.size(), p.current_seed());
p.stream() = STREAM_TRACKING;
advance_prn_seed(data::nuclides.size(), &p.seeds(STREAM_URR_PTABLE));
}
// Play russian roulette if survival biasing is turned on