Hi Mark,
> On Jul 13, 2017, at 1:33 PM, Miller, Mark C. <[email protected]> wrote:
>
> Hi Quincey,
>
> Quick question...I understand how libver bounds can improve a "data producer"
> in that it effects both memory and file data structures used.
>
> But, how does it effect a "data consumer", especially reading an "old" file
> using "old structures"? Is there a conversion step during the read to new
> memory data structures?
It’ll help data consumers that are reading from the new data
structures. As you imply, it won’t help readers of older files. (Although
running h5repack on those files with the “latest format” command line option
would create a file with the new data structures)
Quincey
>
> Mark
>
>
> "Hdf-forum on behalf of Quincey Koziol" wrote:
>
> Hi Deepak,
> Can you try using the “latest” version of the format
> (https://support.hdfgroup.org/HDF5/doc/RM/RM_H5P.html#Property-SetLibverBounds
>
> <https://support.hdfgroup.org/HDF5/doc/RM/RM_H5P.html#Property-SetLibverBounds>
> ) and see if that helps?
>
> Quincey
>
>> On Jul 13, 2017, at 11:14 AM, Deepak 8 Kumar <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Hello!
>>
>> I have a HDF5 based application to read the hdf5 file which has almost 3200
>> groups and 56000 attributes. The application is using the standard hdf5 api
>> and it took almost 11 minutes to read only the groups and attributes. I used
>> StopWatch and observed that H5Aopen_name() is taking almost 97 percent of
>> the total time. I am using HDF 1.10.1 Windows10 x64.
>>
>> My question is that is this the expected behavior here with H5Aopen_name()
>> or I am not reading it properly?
>> What approach we should take in this kind of file with large number of
>> attributes?
>> Any insight is greatly appreciated.
>>
>> Thanks,
>> Deepak Kumar_______________________________________________
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>
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