Parallel overlap checking with staged workflow#20963

Merged

agheata merged 20 commits intoroot-project:masterfrom

agheata:par_ovlp

Jan 27, 2026

Commits on Jan 20, 2026

[geom] Legacy overlap checker now independent wrt checking order.
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[geom] Rebuild touched voxels before checking overlaps.
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[geom] Remove typos in CheckGeometry.
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[geom] Correction for TGeoChecker::SamplePoints.
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[geom] Overlap checking now split in an enumeration phase and a paral;lelizable compute phase.
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[geom] Implemented IsConvex checks for all shapes.
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[geom] Implemented general oriented bounding box (OBB) intersection using the separation axis theorem (SAT).
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[geom] Expose candidate counters from EnumerateOverlapCandidates.
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[geom] Activated OBB checks in overlap checking, including in assembly checks.
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[geom] First implementation of parallelism in CheckOverlaps.
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[geom] Fixed legacy TGeoShape::GetPointsOnSegments implementations and added new ones.
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[geom] Minor printout adjustments.
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[geom] Implemented internal mesh point caching invalidation for composite shapes.
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[geom] Documented CheckOverlaps similar to other utilities in TGeoChecker implementation file
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[geom] Added explicit dependency of Geom on Imt.
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[geom] Added missing TGeoOverlapCandidate.h
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[geom] Protect parallel checking for no IMT available.
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Commits on Jan 22, 2026

Commits on Jan 26, 2026

Fixed copy constructor for TGeoHMatrix.
agheata
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