> El 18 jul 2016, a las 21:48, Hassan Md Mahmudulla <[email protected]> > escribió: > > Would you please give me an idea what combination of ksp solver and > preconditioner I should use to solve this generalized symmetric hermitian > problem? To get the convergence faster, do I need to use external solvers > like mumps and superlu_dist? > > Thanks > M Hassan
For computing eigenvalues in an interval, you have to follow exactly what is written in section 3.4.5 of SLEPc's users manual. It is not possible to use preconditioners in that case. Also, superlu_dist cannot be used for this, only MUMPS or PETSc's cholesky (sequential). Jose
