On 11/4/16, 2:38 PM, "Hdf-forum on behalf of Rob Latham"
<[email protected] on behalf of [email protected]> wrote:
On 10/25/2016 06:41 PM, Sjaardema, Gregory D wrote:
> I think the issue is related to using an older openmpi (or maybe just
> using openmpi). In hdf5-1.8.16, H5Dchunk.c, there is a comment about
> working around a bug for MPI_Type_create_hindexed_block(). The comment
> says that “should not have a special case for blocks == 0, but ompi (as
> of 1.8.1) has a bug in file_set_view when a zero size datatype is create
> with hindexed or hvector.”
>
>
>
> This fix is not in hdf5-1.10.0-patch1. My cases are failing (with
> openmpi-1.6.4 and openmpi-1.8.1) on processors where blocks == 0 and
> they are failing with MPI_File_set_view in the backtrace. If I pull the
> workaround from 1.8.16 in H5Dchunk.c into 1.8.10-patch1, then the code
> makes it past this point (but then fails an assert at a later point in
> the test).
Good hunch about ompi. OpenMPI fixed this bug a couple years back.
==rob
Do you happen to know the version this was fixed in? I can look, but if you
know off-hand, it would save me some searching.
..Greg
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