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For implicit, set ng_fieldgather = ng_alloc_EB #6435

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Merged
merged 3 commits into from
Dec 4, 2025
+10 −8
Merged

For implicit, set ng_fieldgather = ng_alloc_EB #6435

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97dafb1
Set ng_fieldgather = ng_alloc_EB
dpgrote Dec 3, 2025
4b1c532
Refactor ghost cell allocation for implicit schemes
JustinRayAngus Dec 4, 2025
234039b
Fix max allocation for ng_FieldGather
JustinRayAngus Dec 4, 2025
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18 changes: 10 additions & 8 deletions Source/Parallelization/GuardCellManager.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -322,14 +322,6 @@ guardCellManager::Init (
ng_afterPushPSATD = ng_alloc_EB;
}

if (evolve_scheme == EvolveScheme::ThetaImplicitEM ||
evolve_scheme == EvolveScheme::SemiImplicitEM ||
evolve_scheme == EvolveScheme::StrangImplicitSpectralEM) {
// For these implicit schemes, the number of ghost cells
// for EB must be at least as many as those for J.
ng_alloc_EB.max( ng_alloc_J );
}

if (safe_guard_cells){
// Run in safe mode: exchange all allocated guard cells at each
// call of FillBoundary
Expand Down Expand Up @@ -379,4 +371,14 @@ guardCellManager::Init (
ng_MovingWindow[moving_window_dir] = 1;
}
}

if (evolve_scheme == EvolveScheme::ThetaImplicitEM ||
evolve_scheme == EvolveScheme::SemiImplicitEM ||
evolve_scheme == EvolveScheme::StrangImplicitSpectralEM) {
// For these implicit schemes, the number of ghost cells
// for EB gather must be consistent with those for J.
ng_alloc_EB.max( ng_alloc_J );
ng_FieldGather.max( ng_alloc_J );
}

}
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