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If all processes are reading, then, yes, HDF5 (serial) does support this. (HOWEVER, with HDF5-1.10+ file locking is on by default. This will need to be disabled for this to work.)

If there are any processes that are writing, then you must use the "Single Write Multiple Read" (SWMR) feature available in HDF5-1.10. This feature is not available in earlier releases.

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