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 <[email protected]>: > > 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 step with 6 Newton iterations took 27 sec > wall time with a serial version vs. 224 sec with a parallel version.. > > Your feedback is greatly appreciated. > > Many thanks, > Nikolai > > _______________________________________________ > Dumux mailing list > [email protected] > https://listserv.uni-stuttgart.de/mailman/listinfo/dumux
_______________________________________________ Dumux mailing list [email protected] https://listserv.uni-stuttgart.de/mailman/listinfo/dumux
