Files generated with root 6.14 not working in 6.00

[Deepak_Raikwal]

I have generated events in root tree formate in GENIE mc which uses the root 6.14 version but I am not able to read those root files in the root 6.00 version.
Does anyone have a solution to this?

ROOT Version: 6.14
Platform: centos 6
Compiler: Not Provided

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[pcanal]

Out of curiosity, why do you need to read with such an old version of ROOT? Can’t you update the read size with a newer version of ROOT?

To help determine if the files can be read, can you clarify how the reading is failing?

[dastudillo]

The “Important notice” on the 6.14 release notes may explain the issue. In short, the compression algorithm was changed for that version and it may not be readable by 6.00.

[Deepak_Raikwal]

I am using a central cluster system of my institute that is running on centos 6 and for centos 6 root 6.14 is not available.

the error I am having is as-
c11scratch/dwraikwal/Genie_works/genie_data/atmo_ino_1000GeVnumu.root
Error R__unzip_header: error in header
Info in TFile::GetStreamerInfoList: cannot find the StreamerInfo record in file /c11scratch/dwraikwal/Genie_works/genie_data/atmo_ino_1000GeVnumu.root
Error R__unzip_header: error in header

[Deepak_Raikwal]

Thanks.

[beojan]

Do you really mean CentOS 6, or is it SLC 6?

There is an SLC 6 build of ROOT 6.14 (e.g. in LCG 94). If you really are on CentOS 6, you could try using this anyway, it might still work.