I am trying to write data in parallel to an HDF5 file using collective
I/O. The data is a contiguous chunk and each processor has its own local
memspace, but the field does not span the entire domain so some
processors contribute 0 bytes of information. It is straightforward to
create the filespace and select the hyperslab, but when I try to create
the memspace on processors that have a size of zero I get the error:
H5Screate_simple(): zero sized dimension for non-unlimited dimension
The implementation works fine when all processors contribute more than 0
bytes.
I assume it is possible to do a collective write on a chunk of data in
which some processors contribute 0 bytes of information. How do I create
the filespace and memspace to do this?
Thanks,
Brad Aagaard
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