Dear All: When I am solving a linear system. in command line I use: -ksp_type=cr then in the output file: I have : job75557 7959 5e+00 2.8e+02 1.0e-01 2.8e+02 bjacobi blks=128 ilu lvls=0,order=natural
When I am using: -ksp_type cr _pc_type bjacobi the output file looks the same. From the driver source code: bjacobi blks=128 ilu is the kspinfo output. I am wondering, Does this mean that bjacobi is the default preconditioner for cr? Thanks Qiyue Lu