Hi All,
When I model BHE with FEFLOW 7.5, it runs very slow, say, it takes around 12 hours on a machine with 8 cores for a model of simulation period of 10 days. The solver I use is SAMG. Any recommendations for the solver?
Also, according to the documentation "When SAMG solver is too slow or struggle to converge, is worth trying to use PETSc AMG, which, presenting a different formulation and implementation, might perform better." But the option is grey in my version and not selectable. Has this solver been implemented?
Thanks in advance,
Haiyan