Thanks.
   I was trying to load the same file under both versions of visit.
Both version seem to use hdf5 version 9, which is the one automatically
downloaded and installed by the build_visit script. The output file was
created using the ET_2015_11 branch. Has the carpet output format
changed since then?

On 06/04/2018 03:36 PM, Erik Schnetter wrote:
> Yosef
>
> Without knowing any details: Newer HDF5 versions (1.10 and later) are
> supposed to be more efficient in handling metadata. I do not know
> whether this applies to writing as well as to reading. It might be that
> your VisIt versions are linked against different HDF5 library versions.
> (I assume that you are testing against the same HDF5 file.)
>
> -erik
>
>
> On Mon, Jun 4, 2018 at 2:43 PM, Yosef Zlochower <yosef@astro.rit.edu
> <mailto:yosef@astro.rit.edu>> wrote:
>
>     Hi,
>         I was trying to load CarpetIOHDF5 2D data with visit 2.10 and
>     2.13. I
>     compiled both using the build_visit scripts with the --hdf5 option. The
>     2.13 takes much longer to load.
>
>     For example, with a file containing 3 timelevels, 2.10 takes under a
>     second to load, and 2.13 takes about 7 seconds. This gets much worse as
>     the number of time levels is increased. It took 2 minutes to open a
>     file
>     with 10 timelevels in 2.13, but under a second with  2.10
>
>     Has anyone else seen this? Is there a workaround?
>
>
>     --
>     Dr. Yosef Zlochower
>     Center for Computational Relativity and Gravitation
>     Associate Professor
>     School of Mathematical Sciences
>     Rochester Institute of Technology
>     85 Lomb Memorial Drive
>     Rochester, NY 14623
>
>     Office:74-2067
>     Phone: +1 585-475-6103
>
>     yosef@astro.rit.edu <mailto:yosef@astro.rit.edu>
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> Erik Schnetter <schnetter@cct.lsu.edu <mailto:schnetter@cct.lsu.edu>>
> http://www.perimeterinstitute.ca/personal/eschnetter/

>
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