On 16.01.19 12:34, lc wrote:
Good morning,
I'm facing two types of issues:
1) On DuMux 2.12, trying to run any test which calls
set_singular_limit results in the following error.
/home/lorenzo/DUMUX/dumux/dumux/material/constraintsolvers/compositionfromfugacities.hh:110:59:
error: ‘set_singular_limit’ is not a member of
‘Dune::FMatrixPrecision<double>’
Dune::FMatrixPrecision<Scalar>::set_singular_limit(1e-25);
Hi Lorenzo,
which Dune version are you using? DuMux 2.12 is only compatible with the
2.6 release not master.
On DuMux 3.0.0 such an issue has been solved, as I see.
Could you please point me to some solution for 2.12?
2) I will need to run in parallel. I'm running some tests, such as
test_3p3cni_kuevette_box but what I always get is that as far as I use
more than 2 processors the wall time is greater than the sequential
(non parallel) simulation, but such time cannot be addressed only to
communications. Is it normal? I read in the mailing list archive that
such behaviour was observed in the first releases on DuMux. What about
it for 2.12 and 3.0?
I assume you follow the instructions in the DuMux handbook (3.0) and the
parallel section. Do you have more than 2 cores? If yes can you post
some time measurements over the number of cores that we can look at? The
kuvette test has only 120 cells, that's too small of a grid to run it
efficiently on many cores. Did you try the same with more cells? Does
anything change?
Timo
Kind regards,
Lorenzo
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Timo Koch phone: +49 711 685 64676
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