HDF5, when using the newest version's library features, includes time
stamps in the file, as "h5ls -v" displays:
h5ls -v LOD.f5
Opened "LOD.f5" with sec2 driver.
Charts Group
Location: 1:70486
Links: 1
Modified: 2014-07-15 15:57:53 W. Europe Daylight Time
TableOfContents Group
Attribute: version {3}
Type: native int
Data: 0, 1, 5
Location: 1:342
Links: 1
Modified: 2014-07-15 15:57:53 W. Europe Daylight Time
Comment: "All file objects in reverse order for easier browsing. "
t=000000000.0000000000 Group
Attribute: Time scalar
Type: native double
Data: 0
Location: 1:195
Links: 1
Modified: 2014-07-15 15:57:53 W. Europe Daylight Time
However, you can control whether the newest library features are used or
not by calling
H5Pset_libver_bounds(fapl_id, H5F_LIBVER_EARLIEST, H5F_LIBVER_LATEST);
see
http://www.hdfgroup.org/HDF5/doc/RM/RM_H5P.html#Property-SetLibverBounds
Thereby you should be able to disable timestamps to be put into the HDF5
file by forcing it to *not* use the newest library features and binary
diffs should work again for such old-style files.
Cheers,
Werner
On 05.08.2014 15:14, Ekin Akoglu wrote:
Dear all,
For the two versions of the same HDF5 file, h5diff comparison outputs
"0 differences found"; however, when compared with the Unix "diff"
command, they differ. This is creating inconvenience under version
control system. Do you have any suggestions why diff and h5diff
conflicts? As far as I remember, this was not the case in the past and
I remember managing HDF5 data files without problems under GIT DVCS;
however, I cannot recall which version of the HDF5 library.
I tried this as below:
I compiled my Fortran program (using GNU Fortran 4.8.2) and ran it so
as to create the HDF5 datafile as output. I moved the datafile to some
other directory. Then I re-ran my program (without recompiling) and
then compared the newly created HDF5 data file with the old one using
"diff" tool in Mac OS X (10.9.4) and Linux (Debian Wheezy 7.6 x64) and
they did differ. Why?
My HDF5 version is 1.8.12 and diff version is GNU diffutils 2.8.1.
Thank you in advance,
Ekin
_______________________________________________
Hdf-forum is for HDF software users discussion.
[email protected]
http://mail.lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org
Twitter: https://twitter.com/hdf5
--
___________________________________________________________________________
Dr. Werner Benger Visualization Research
Center for Computation & Technology at Louisiana State University (CCT/LSU)
2019 Digital Media Center, Baton Rouge, Louisiana 70803
Tel.: +1 225 578 4809 Fax.: +1 225 578-5362
_______________________________________________
Hdf-forum is for HDF software users discussion.
[email protected]
http://mail.lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org
Twitter: https://twitter.com/hdf5
