Hello all,
I was wondering if anyone has had issues with IDL (ittvis.com) and
HDF5. I've noticed that on some versions of IDL (roughly < 7.1),
opening a file created with HDF5 1.8.X will crash IDL. Has anyone
else had this problem? I bring it up because some of my users are now
noticing similar problems on Windows.
Andrew Collette
Hi Andrew,
IDL 7.1 supports HDF5 1.6.7. Older versions of IDL were based on 1.6.3 and this can a problem!
It is possible to create a file with 1.8.* that cannot be read by IDL if new features of 1.8.* were used (see http://www.hdfgroup.org/HDF5/doc/ADGuide/CompatFormat180.html). Of course IDL (and HDF5) shouldn't crash 
I would suggest to the users to try 1.6.8 h5dump (the tool can be downloaded from http://www.hdfgroup.org/HDF5/release/obtain516.html, see "Static Binary Utilites" column)
on 1.8 file and see if it is backward compatible. Both HDF5 and IDL can contribute to the problem; we will need to know if there a problem with HDF5 (i.e., if no new features were used, a file create by 1.8.* should be read by 1.6* libraries and tools; send us the file if this is not true; 1.6.8 h5dump should exit gracefully on the 1.8 file if new features ARE used).
Elena
On Aug 24, 2009, at 1:37 PM, Andrew Collette wrote:
Hello all,
I was wondering if anyone has had issues with IDL (ittvis.com) and
HDF5. I've noticed that on some versions of IDL (roughly < 7.1),
opening a file created with HDF5 1.8.X will crash IDL. Has anyone
else had this problem? I bring it up because some of my users are now
noticing similar problems on Windows.Andrew Collette
_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
Hi Andrew,
This is a serious problem with the outdated HDF5 library distributed with IDL. There are actually two issues: HDF5 files created with version 1.8 and compressed datasets.
Has it been solved in 7.1? That would be good news!
Best regards,
Richard van Hees
Andrew Collette wrote:
Hello all,
I was wondering if anyone has had issues with IDL (ittvis.com) and
HDF5. I've noticed that on some versions of IDL (roughly < 7.1),
opening a file created with HDF5 1.8.X will crash IDL. Has anyone
else had this problem? I bring it up because some of my users are now
noticing similar problems on Windows.Andrew Collette
_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
I failed to mention that we created IDL HDF5 modules based on 1.8.2. See ftp://ftp.hdfgroup.uiuc.edu/pub/outgoing/hdf5/snapshots/idl/
I believe 64bit Linux binary has the problem Richard refers to. We talked to IDL people and they couldn't confirm that problem (worked on their system, but we do not have their binary).
Elena
On Aug 24, 2009, at 2:14 PM, Richard van Hees wrote:
Hi Andrew,
This is a serious problem with the outdated HDF5 library distributed with IDL. There are actually two issues: HDF5 files created with version 1.8 and compressed datasets.
Has it been solved in 7.1? That would be good news!
Best regards,
Richard van Hees
Andrew Collette wrote:
Hello all,
I was wondering if anyone has had issues with IDL (ittvis.com) and
HDF5. I've noticed that on some versions of IDL (roughly < 7.1),
opening a file created with HDF5 1.8.X will crash IDL. Has anyone
else had this problem? I bring it up because some of my users are now
noticing similar problems on Windows.Andrew Collette
_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org_______________________________________________
Hdf-forum is for HDF software users discussion.
Hdf-forum@hdfgroup.org
http://mail.hdfgroup.org/mailman/listinfo/hdf-forum_hdfgroup.org
