According to https://docs.scipy.org/doc/numpy-dev/user/basics.types.html#extended-precision numpy long doubles are typically zero padded to 128 bits on 64 bit systems could that be the reason?
On Mon, 16 Jan 2017 at 07:00 Thomas Caswell <tcasw...@gmail.com> wrote: > Folks, > > Over at h5py we are trying to get a release out and have discovered (via > debian) that on ppc64el there is an apparent disagreement between the size > of a native long double according to hdf5 and numpy. > > For all of the gorey details see: https://github.com/h5py/h5py/issues/817 > . > > In short, `np.longdouble` seems to be `np.float128` and according to the > docs should map to the native 'long double'. However, hdf5 provides a > `H5T_NATIVE_LDOUBLE` which should also refer to the native 'long double', > but seems to be a 64 bit float. > > Anyone on this list have a ppc64el machine (or experience with) that can > provide some guidance here? > > Tom > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > https://mail.scipy.org/mailman/listinfo/numpy-discussion >
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