Dear all,

We recently found a bug in the new version of HDF5 1.10.0.

Among others, the HDF5 library will abort while reading some data before the (alps) archive has been closed and sometimes it will fail to overwrite in a dataset that already exists.

We noticed that the pyalps test pyhdf5.py is affected but this, as well as some routine in the saving of ALPS.Alea results (for an example, just run the tutorial mc-01).

Jan Gukelberger reported the bug and a patch to the HDF Group and we hope this could quickly be incorporated in the next release.

For the moment we highly recommend to use the version 1.8.x of HDF5.

Best regards, Michele

-- ETH Zurich Dr. Michele Dolfi Institute for Theoretical Physics HIT G 32.4 Wolfgang-Pauli-Str. 27 8093 Zurich Switzerland

dolfim@phys.ethz.ch www.itp.phys.ethz.ch

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