On Wednesday 03 March 2010 14:25:17 Thorben Kröger wrote:
> > > Though the 30GB file I was talking of was written using HDF5 1.8.4, if
> > > I understand correctly, it will not make use of these new features
> > > because it tries to maintain downward compatibility to 1.6. Correct?
> > 
> > Yes, you should enable the new link storage by calling
> > H5Pset_libver_bounds() explicitly.  IMO, this would be the best path to
> > improve performance for your scenario
> 
> So can I convert my existing file to the 1.8-only file version without
> having to rerun the program that generated it? That would take a week I
> think :-(

So, I've found the "h5repack" command line tool now that accepts the "--
latest" options, and am running this now on my file like this:

h5repack --latest oldfile.h5 newfile.h5

Will report back about possible performance improvements...

Cheers,
Thorben

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