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> 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

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--
Erik Schnetter <schnetter@cct.lsu.edu>
http://www.perimeterinstitute.ca/personal/eschnetter/