[ET Trac] [Einstein Toolkit] #1282: Enable HDF5 compression by default in Carpet

[Einstein Toolkit]

#1282: Enable HDF5 compression by default in Carpet
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 Reporter:  hinder       |       Owner:  eschnett
     Type:  enhancement  |      Status:  new     
 Priority:  major        |   Milestone:          
Component:  Carpet       |     Version:          
 Keywords:               |  
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 The current default for CarpetIOHDF5::compression_level is 0 (no
 compression).  I have been using compression in most of my HDF5 files for
 years, and have never run into any problem.  CPUs are typically much
 faster than storage nowadays.  I propose that the compression level should
 default to 9.  This would affect output and checkpoint files, and could
 lead to huge space savings.  Apart from the checkpoint files being written
 and read quicker and taking less disk space, the user should not notice,
 as the HDF5 library handles compression transparently.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1282>
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