<div dir="ltr">Hello everyone,<div><br></div><div>If we use -snes_fd or -snes_fd_color, can we still pass a preconditioner to snes/ksp?</div><div><br></div><div>In snes/ex1.c, when I use -snes_fd, the program never calls the FormJacobian1 to get the preconditioner.</div>
<div><br></div><div>Any suggestions about providing preconditioner to snes_fd or snes_fd_color?</div><div><br></div><div>Thanks.</div><div><br></div><div>Xiangdong</div></div>