Hi Albert, thanks for the response...
Albert Cheng wrote:
Parallel I/O is a different issue. It depends what parallel file
systems you use.
Two commercial systems, GPFS (by IBM) and Lustre (now owned by Oracle)
are possible options. Their performance varies and are highly
dependent on the characteristics of the I/O pattern of your applications.
Unfortunately I had some misconceptions in my thinking. To do parallel
I/O, HDF5 apps actually need to set up an MPI file access property list,
which would be in exclusion to any other FAPL type (e.g. sec2, direct,
etc.). Is that correct?
We are currently doing writes using the iRODS VFD I developed, though
reading apps are using the (potentially faster) sec2 driver.
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