<div dir="ltr"><div><div><div>Hi,<br><br></div>The option -snes_lag_jacobian_persists TRUE doesn't seem to prevent the jacobian calculation at the beginning of each time step in the ROSW method in the TS module. I'm hoping to avoid an expensive jacobian assembly at the beginning of each time step and whenever a time step is rejected in the ROSW method. The option however works with the THETA method.<br>
<br></div>I'm using the dev version.<br><br></div>Cheers,<br>Mani<br></div>