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SumSpectra reserve EventList based on Event Type #39586

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Merged
merged 2 commits into from
Jun 26, 2025
Merged

SumSpectra reserve EventList based on Event Type #39586

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0f60f91
Switch event type
searscr Jun 25, 2025
40a36c3
release note
searscr Jun 25, 2025
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2 changes: 1 addition & 1 deletion Framework/Algorithms/src/SumSpectra.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -583,7 +583,7 @@ void SumSpectra::execEvent(const MatrixWorkspace_sptr &outputWorkspace, Progress
}
numOutputEvents += inputWorkspace->getSpectrum(i).getNumberEvents();
}

outputEL.switchTo(inputWorkspace->getSpectrum(0).getEventType());
outputEL.reserve(numOutputEvents);

// Loop over spectra
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1 change: 1 addition & 0 deletions docs/source/release/v6.13.0/Framework/Algorithms/Bugfixes/39586.rst
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@@ -0,0 +1 @@
- Fix an issue where :ref:`SumSpectra <algm-SumSpectra>` would freeze when on large datasets when adding EventList to the Output Workspace if the Event Type was weighted.