huaibao zhang <[email protected]> writes: > Hello there, > > I have been confused of the extent of the available preconditioners in PETSc > for a while. Here are the lists I got from one slide of a lecture notes saying > > Block Jacobi, > Jacobi, > Overlapping Additive Schwarz, > ICC, ILU (sequential only) > ILU(K), LU(direct solver, sequential only) > sor > etc. > > > But in some other sources, only LU is highlighted with "sequential > only".
-pc_type lu -pc_factor_mat_solver_package superlu_dist (or "mumps") will give you a parallel solver. > Which one is correct? I am using MATCreateAIJ to construct my A. Which > preconditioner is available to me? By the way, I tested asm, ilu, icc, > and they all failed. "failed" is not sufficiently descriptive. It would also help to know what sort of problem you're solving.
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