21389510982

Committed 27 Jan 2026 08:12AM UTC coverage: 81.991% (+0.01%) from 81.979%

Build # 21389510982

Build Type

Pull #3751

github

Committed by

web-flow

Commit Message

Merge 29801645c into db426b66c

Pull Request Pull Request #3751: Resolve conflict with weight windows and global russian roulette

Run Details

17220 of 23973 branches covered (71.83%)

Branch coverage included in aggregate %.

15 of 17 new or added lines in 4 files covered. (88.24%)

52 existing lines in 3 files now uncovered.

55703 of 64967 relevant lines covered (85.74%)

44149488.49 hits per line

Source File
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78.26

/src/physics_common.cpp

#include "openmc/physics_common.h"

#include "openmc/random_lcg.h"
#include "openmc/settings.h"

namespace openmc {

//==============================================================================
// RUSSIAN_ROULETTE
//==============================================================================

void russian_roulette(Particle& p, double weight_survive)
{
  if (weight_survive * prn(p.current_seed()) < p.wgt()) {
    p.wgt() = weight_survive;
  } else {
    p.wgt() = 0.;
  }
}

void apply_neutron_russian_roulette(Particle& p)
{
  // Play russian roulette if survival biasing is turned on
  if (settings::survival_biasing) {
    // if survival normalization is on, use normalized weight cutoff and
    // normalized weight survive
    if (settings::survival_normalization) {
      if (p.wgt() < settings::weight_cutoff * p.wgt_born()) {
        russian_roulette(p, settings::weight_survive * p.wgt_born());
      }
    } else if (p.wgt() < settings::weight_cutoff) {
      russian_roulette(p, settings::weight_survive);
    }
  }
}

} // namespace openmc

1	#include "openmc/physics_common.h"
2
3	#include "openmc/random_lcg.h"
4	#include "openmc/settings.h"
5
6	namespace openmc {
7
8	//==============================================================================
9	// RUSSIAN_ROULETTE
10	//==============================================================================
11
12	void russian_roulette(Particle& p, double weight_survive)	1,467,509✔
13	{
14	if (weight_survive * prn(p.current_seed()) < p.wgt()) {	1,467,509✔
15	p.wgt() = weight_survive;	259,673✔
16	} else {
17	p.wgt() = 0.;	1,207,836✔
18	}
19	}	1,467,509✔
20
21	void apply_neutron_russian_roulette(Particle& p)	2,147,483,647✔
22	{
23	// Play russian roulette if survival biasing is turned on
24	if (settings::survival_biasing) {	2,147,483,647✔
25	// if survival normalization is on, use normalized weight cutoff and
26	// normalized weight survive
27	if (settings::survival_normalization) {	4,719,209!
NEW 28	if (p.wgt() < settings::weight_cutoff * p.wgt_born()) {	×
NEW 29	russian_roulette(p, settings::weight_survive * p.wgt_born());	×
30	}
31	} else if (p.wgt() < settings::weight_cutoff) {	4,719,209✔
32	russian_roulette(p, settings::weight_survive);	199,331✔
33	}
34	}
35	}	2,147,483,647✔
36
37	} // namespace openmc

openmc-dev / openmc / 21389510982

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