Hi,
From PHDF5 hints, I got that for contiguous layout, independent IO will be used for unregularly selection.
Some days ago I got the information from google that already used collective IO for unregular selection.
Is it true?
Thanks.
Tony
Hi Tony,
Hi,
From PHDF5 hints, I got that for contiguous layout, independent IO will be used for unregularly selection.
Some days ago I got the information from google that already used collective IO for unregular selection.
Is it true?
Yes, there is support for collective I/O on irregular hyperslab selections currently. It should work on both contiguous and chunked datasets as well. There are times when the library with apply some heuristics to determine that a collective should be broken down into an independent operation, but that will happen without application intervention. Point selections are currently never handled collectively, however.
Quincey
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On Sep 3, 2009, at 8:16 AM, tony wrote: