[hdf-forum] Advice on way to write HDF file for optimal reading.
Andrew Cunningham
andrewc at mac.com
Wed Oct 29 18:52:13 EDT 2008
HI Neil,
The situation is 'write-once'/'read-often'. That is, the HDF file
will be written in column order in one data-translation operation and
closed ( no-compression), then later opened ( and kept open) with
reading of non-contiguous blocks of rows.
Andrew
On Oct 29, 2008, at 3:10 PM, nfortne2 at hdfgroup.org wrote:
> The best way to do this depends on your priorities for performance.
> The most important parameters imfluencing read and write performance
> here are the chunk dimensions, and the raw data chunk cache (rdcc)
> configuration. Are you using any compression on the dataset? The
> following advice assumes you are not:
>
> T
Andrew
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