Hi,
there is a virtual file driver that operates on a memory image of an
HDF5 file. It should be no problem to have this one also operate on
shared memory.
Werner
On 10.12.2016 05:50, Schneider, David A. wrote:
Is it possible to implement a in memory circular buffer using hdf5? This would
be for multiple processes, sychronizing in a consumer publisher pattern, or
maybe the server just writes to the circular buffer. Our data acquisition
system is moving to hdf5 for offline files, but it also has to publish data to
shared memory for some online analysis. It would be great if we could use the
same schema and interface to the data for both offline and shared memory
access. We're imaging that we will use SWMR to analysis the data acquisition
data as it is being written to disk, but I'm not sure how this will work for
shared memory. On disk, we just append to the datasets, in memory, we'd be
overwriting old data.
best,
David Schneider
SLAC/LCLS
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--
___________________________________________________________________________
Dr. Werner Benger Visualization Research
Center for Computation & Technology at Louisiana State University (CCT/LSU)
2019 Digital Media Center, Baton Rouge, Louisiana 70803
Tel.: +1 225 578 4809 Fax.: +1 225 578-5362
_______________________________________________
Hdf-forum is for HDF software users discussion.
[email protected]
http://lists.hdfgroup.org/mailman/listinfo/hdf-forum_lists.hdfgroup.org
Twitter: https://twitter.com/hdf5
