THnSparse

ROOT
1

Hello Again,

Due to memory concerns I wanted to use THnSparse instead if a TH3D but the combination of the histograms after processing does not seem to work, instead I get the following output.

Error in <TSelectorList::CheckDuplicateName>: an object with the same name: h3 is already in the list Error in <TSelectorList::CheckDuplicateName>: an object with the same name: h3 is already in the list Error in <TSelectorList::CheckDuplicateName>: an object with the same name: h3 is already in the list(3 Times, using 4 Workers)

And the THnSparse I get from fOutput is just the one that is added first, guessing from the number of entries.

I only replaced the th2d I used before (See thread memory leak) by the thnsparse, is there anything else I have to do, or is THnSparse not (yet) supported by Proof?

Thanks,
André

2

Hi Andre,

THnSparse did not yet implement Merge() - a prerequisite for the merging of output lists to work. I have added it in the trunk.

Cheers, Axel.

3

Thank you, Axel,

I will try to get the trunk version installed.

André