[ET Trac] [Einstein Toolkit] #1483: speed up reading metadata of HDF5 files in visit

Einstein Toolkit trac-noreply at einsteintoolkit.org
Tue Nov 19 23:38:04 CST 2013


#1483: speed up reading metadata of HDF5 files in visit
-------------------------+--------------------------------------------------
 Reporter:  rhaas        |       Owner:                     
     Type:  enhancement  |      Status:  new                
 Priority:  minor        |   Milestone:                     
Component:  Other        |     Version:  development version
 Keywords:  CarpetHDF5   |  
-------------------------+--------------------------------------------------
 The attached patch tries to extract as much information about a dataset
 from the dataset name as possible. Since accessing attributes is slow but
 the dataset name comes for free this speeds up opening HDF5 files in VisIt
 drastically (I had a factor of 6 when I measured it quite a while ago).

 This is certainly not the nicest way of parsing the string, one could
 think of sequentially looking for "name=value" constructs in the string
 and acting based on the name rather than just matching against all
 possible options.

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Ticket URL: <https://trac.einsteintoolkit.org/ticket/1483>
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