On Tue, May 31, 2016 at 3:23 AM, Lorenzo Zanon <za...@aices.rwth-aachen.de>
wrote:
> Hello,
>
> I solved the problem. During the "online" run, I was writing down the
> coefficients of the reduced solution u_N in data files, which were then
> read in a separate run to compute the error bound. I converted this
> writing/reading from data files to binary; the precision is now preserved.
>
The ASCII writing in legacy_write_offline_data_to_files() is done through
the Xdr class, but that should be writing 16 digits:
xdr_cxx.C, line 746:
*out << std::scientific
> << std::setprecision(16);
It looks like these lines were added in aff6b5ea, back on 2015-10-26,
though, so if you have al libmesh from before that, the precision might
have been lower.
--
John
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