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Do not call storeChunk upon empty particle species #5667

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Merged
psychocoderHPC merged 1 commit into from
Apr 2, 2026
+6 −0
Merged

Do not call storeChunk upon empty particle species #5667

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6 changes: 6 additions & 0 deletions include/picongpu/plugins/openPMD/writer/ParticleAttribute.hpp
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Original file line number Diff line number Diff line change
Expand Up @@ -157,6 +157,12 @@ namespace picongpu
}
if(elements == 0)
{
if(globalElements == 0)
{
// no one does anything, storeChunk() is not allowed since empty components are automatically
// converted to constant components by the openPMD-api, these do not allow storeChunk
return;
}
// accumulateWrittenBytes += 0;

// Workaround for this bug: https://github.com/openPMD/openPMD-api/pull/1794
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