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lkdvos
approved these changes
Oct 25, 2024
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This PR will change the default SVD cotangent problem
rrule_algtoArnoldi.After some benchmarking,
Arnoldihas turned out to be the fastest algorithm in many cases (as compared toGMRESandBiCGStab). The Krylov dimension has to be chosen according to the chosen environment dimension, so this has to be adapted to the specific problems anyway; but choosing a reasonably large dimension will ensure less warnings and better convergence, usually. To really get rid of the warnings by default (since they turn out to be non-crucial in most cases), I setverbosity=-1.