Changes between Version 1 and Version 2 of DVO_LargeFiles
- Timestamp:
- Jul 16, 2010, 9:39:12 AM (16 years ago)
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DVO_LargeFiles
v1 v2 1 1 == DVO and Large Database Files == 2 2 3 2010.03.21 : I have upgraded the Ohana software to handle large (>2^32 byte) files. This mostly involved changing the fits I/O structures to use fseeko(), ftello(), and off_t types to define the sizes of files. I extended the table and image structures to use off_t as well for NAXIS1,2, in the fear that someone will want to define a 2G vector or image.3 2010.03.21 : I have upgraded the Ohana software to handle large (>2^32^ byte) files. This mostly involved changing the fits I/O structures to use fseeko(), ftello(), and off_t types to define the sizes of files. I extended the table and image structures to use off_t as well for NAXIS1,2, in the fear that someone will want to define a 2G vector or image. 4 4 5 5 * As part of the large-file testing, I have generated a very large DVO database catalog with 21M measurements of 141k stars (3.2GB). One interesting data point: to run addstar -resort on that file took 85 seconds, of which 37 were used for the actual resort process and the rest was I/O time (on ipp022).
