<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><br></div><div><br></div><div><br></div><div><br></div><div>In order to help explain and understand composible solver I started to add the PetscViewerDraw ability to the solver objects to graphically explain the solvers used and the decomposition of the solvers. It is very crude now but I've attached a couple of images of what are generated when using -ts/snes/ksp_view_draw We need to add more information (somehow) to indicate the multigrid levels as "levels" the field split decomposition etc. Any thoughts or code welcome.</div><div><br></div><div> Barry</div><div><br></div><div><br></div><div><br></div><img id="ae7b6bda-5197-47ca-97db-9f1e168226e4" height="498" width="480" apple-width="yes" apple-height="yes" src="cid:263F5512-22EB-4FDA-AF08-046560DF5C79@wowway.com"><img id="86087011-0300-4f1e-a27d-c5ba394d7049" height="498" width="480" apple-width="yes" apple-height="yes" src="cid:B83C5B3C-1226-4FF9-BD78-266F5F212419@wowway.com"></body></html>