Fande : > I found one issue on my side. The preallocation is not right for the BAIJ > matrix. Will this slow down MatLUFactor and MatSolve? >
preallocation should not affect ilu(0). > > How to converge AIJ to BAIJ using a command-line option? > -mat_type aij or -mat_type baij Hong > > > Fande, > > On Tue, Mar 7, 2017 at 3:26 PM, Jed Brown <[email protected]> wrote: > >> "Kong, Fande" <[email protected]> writes: >> >> > On Tue, Mar 7, 2017 at 3:16 PM, Jed Brown <[email protected]> wrote: >> > >> >> Hong <[email protected]> writes: >> >> >> >> > Fande, >> >> > Got it. Below are what I get: >> >> >> >> Is Fande using ILU(0) or ILU(k)? (And I think it should be possible to >> >> get a somewhat larger benefit.) >> >> >> > >> > >> > I am using ILU(0). Will it be much better to use ILU(k>0)? >> >> It'll be slower, but might converge faster. You asked about ILU(k) so I >> assumed you were interested in k>0. >> > >
