Re: Error when adding THnSparseD objects

Hi Alberto,

    no we cannot detect if the files were written on 32 or 64-bit machines. If you still remember on which platforms the files were generated you could, using the latest version of ROOT, merge all 32-bit files on a 32-bit machine and all 64-bit files on a 64-bit machine. This will create THnSparse objects that are machine independent (as they are written with the latest version). As a last step you can merge these "pre-merged" files on any machine using the latest ROOT.

Cheers, Fons.

Alberto Pulvirenti wrote:
> Hello,
>
> in case one has some files with THnSparseD objects produced time ago,
> when the bug was present, will he be forced to re-produce those outputs
> with the new patched release, or the new release will be able to deal
> even with those files?
>
> Thanks, best regards
>
> Alberto
>
> Axel Naumann wrote:

>> Hi,
>>
>> this was a bug in the persistency of TExMap which is used by 
>> THnSparse. The bug is already fixed in the trunk and will get fixed in 
>> v5-24-00-patches soon, so it should arrive at Alice soon. With that 
>> fix I can read and write files with a THnSparse in any combination of 
>> writing / reading and 64 or 32 bits.
>>
>> Thanks for the report!
>>
>> Cheers, Axel.
>>
>> Axel Naumann wrote on 07/21/2009 12:05 PM:
>>> Hi Alberto,
>>>
>>> your files work for me - I can run
>>>
>>> $ hadd fileadd.root file1.root file2.root
>>> Target file: fileadd.root
>>> Source file 1: file1.root
>>> Source file 2: file2.root
>>> Target path: fileadd.root:/
>>>
>>> just fine with the trunk. Which version do you use? What platform are 
>>> you on?
>>>
>>> Cheers, Axel.
>>>
>>> Alberto Pulvirenti wrote on 07/21/2009 10:52 AM:
>>>> I'll try.
>>>> Hope that they are not too large to be attached in an email.
>>>> I find that this error appears also if I use 'hadd'.
>>>>
>>>> Cheers
>>>>
>>>>     Alberto
>>>>
>>>> Axel Naumann wrote:
>>>>> Hi Alberto,
>>>>>
>>>>> can you send me the two files or better yet the two THnSparse for 
>>>>> which
>>>>> this happens?
>>>>>
>>>>> Cheers, Axel.
>>>>>
>>>>> On 2009-07-21 10:46, Alberto Pulvirenti wrote:
>>>>>> Dear all,
>>>>>>
>>>>>> I have two files which are outputs of the same analysis done on
>>>>>> different data sets. Each file contains a TList of THnSparseD objects
>>>>>> with well-specified names.
>>>>>>
>>>>>> I want to generate a file with the same structure, where each 
>>>>>> THnSparseD
>>>>>>  should be the sum of the two omonyme objects in the source files.
>>>>>>
>>>>>> I managed to prepare a macro which reads the two files and adds up 
>>>>>> the
>>>>>> two such histograms, but I always encounter a warning like this
>>>>>>
>>>>>> Error in <TExMap::Expand>: slot 568 not empty (should never happen)
>>>>>>
>>>>>> what does it mean? How can I check it?
>>>>>>
>>>>>> Thanks, cheers
>>>>>>
>>>>>>     Alberto
>>>>>>
>>>>>>
>>>
>>>

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