Please send the entire error output. - Peter
On Wed, Jan 29, 2014 at 10:09 AM, Konstantinos Kontzialis < [email protected]> wrote: > Dear all, > > I am using a matrix free method with a user defined preconditioner. > I run with the option -snes_mf_operator, but I get the following: > > Must call DMShellSetMatrix() or DMShellSetCreateMatrix()! > > Why is this happening? I use the TS library. > > Kostas >
