Hi,
the UMFPack backend doesn't work in parallel. The only parallel backend in
currently the AMG preconditinoed BiCGSTAB.
Timo
Viele Grüße,
Timo
> Am 06.09.2018 um 18:47 schrieb Nikolai Andrianov :
>
> Dear DuMuX experts,
>
> Working with
Dear DuMuX experts,
Working with https://git.iws.uni-stuttgart.de/andrian/rate-sensitivity using
direct linear solver UMFPackBackend, I observed almost a 10-fold degradation in
performance of a parallel version with Open MPI as compared to a serial version!
On a 40 cores Ubuntu desktop 1 time
Hi Dennis,
Thanks a lot for your feedback!
So I ended up using a direct solver, which works fine for my problem (2 phases,
around 500k cells).
Best regards,
Nikolai
From: Dumux On Behalf Of Dennis Glaser
Sent: Friday, August 31, 2018 20:27
To: dumux@listserv.uni-stuttgart.de
Subject: Re:
